* Prices may differ from that shown
I started using sma gold baby milk straight from birth. I intended to breast feed but could not as my son needed intensive care when he was born and I was hospitalise too. i could not see him for 3 days so my milk did not come in I was given tablets to help but in the first few days me and my partner choose sma gold mainly due to the fact that we were told our hospital has always used sma formula milk for about 60 years. so I thought it was best.
We used the readymade kind when he was in an incubator through a tube and he was great with it no constipation at all which I was told formula milk does. Later we started using the readymade but in their glass bottles which he hated he would not take the teat that comes with the bottles he just turned away and started to cry.
so we whent out and got the sma gold powder and some proper baby bottles and he was great eats really well no constipation, no colic, just a really happy baby. the baby milk does get confusing when you change from readymade to powder, as baby needs different amounts. so on readymade he will need more mls than the powder and water, each tin and carton has a guide on how much powder to water to mix which is really usefull as. It is a really good milk the only draw back is the price as its about £10 a tin but well worth it to have a happy settled baby.
My baby has been on this milk since he was a few days old. I bought it when I was 8 months pregnant to have in just in case I couldn't get established with breastfeeding. I chose this brand as I knew it had been around for years and, because it was cheaper than the others (as I wasn't intending to use it, I didn't want to spend a fortune).
However, after 3 days of breastfeeding, it became clear that my baby was unhappy as he simply wasn't getting enough. I was upset but reluctantly put him onto the SMA Gold formula. The effect was instant. My baby became happy and content and would now sleep! I dreaded telling the midwife on her 5 day visit that I had stopped breastfeeding, however, I needn't have worried, she was lovely and was pleased that I had chosen SMA Gold. She did advise that some babies become constipated on this formula, however, this has certainly never been an issue for us!
My baby continued to thrive on this formula and his weight steadily increased (he didn't even lose any weight initially which most babies tend to do in the first days after birth). He enjoys his bottles and we have never had any problems with him on it. He has never had colic or nothing so much as a sniffle.
The bottles are easy to make up, simply 1 scoop of formula per 1floz of boiled water. A tin of milk tends to last me about a week. The guidelines on the tin seem about right also. They recommend the amount that your baby should be having based on his age, however, they do acknowledge that some babies may be hungrier than others.
Recently the formula of SMA Gold changed (they had been warning of this change for a few weeks before it happened by putting information stickers on the lid of the tin). The design on the tin itself has changed slightly as well as the formula inside. They did however, include an information leaflet in the new tins of formula letting you know how they had improved it and the likely effect it was to have on your baby. They advised that the consistency of baby's stools may change due to the change. My son got bunged up for a few days during the changeover and his poo is now a slightly different colour but all seems fine in that department.
The new formula means that the price has now increased from around £7.63 to £8.99, however, I have never considered changing the formula my baby drinks. He is happy, content and has been sleeping through the night since he was 10 weeks old. If it aint broke, don't fix it!
I was upset that I was unable to breastfeed, but SMA Gold seems to be proving itself as a great compromise. If I were to have more children and was unable to feed them myself, I would have no hesitation in feeding them SMA Gold.
When my baby was due I purchased a tin of SMA gold to feed her once I got home. I also purchased a couple of the ready made cartons for use whilst I was in the hospital. There were 2 reasons why I chose SMA over the other formulas, firstly it was recommended to my by my midwife. She advised me that it was used in my local hospital to give to babies straight after birth. The second reason was that I knew it was readily available pretty much everywhere.
The tins are bright and colourful with a yellow lid so its easy to get the correct tin. They are the same price pretty much everywhere you go, I think they are around £8 a tin. The tin contains lots of information on how to make up a feed and it also gives you guidelines on how much your baby should be taking. To be honest I paid a little too much attention to how much my baby should have been feeding and got slightly worried when I thought she wasn't taking enough. As my health visitor said all babies are different, and different weights so there is no set amount. I soon learnt to ignore that part of it!
I started my daughter off on SMA cartons when we were in the hospital for 2 nights after the birth. We experienced no problems and she took the bottle fine. When we got home we finished the cartons and then switched over to the powder. Within a day or two we started to notice that she was quite constipated. At first we thought this was just because of the switch to powder so we kept going for a few days, gave her plenty of cooled boiled water and waited to see what happened but nothing changed.
The SMA made her really constipated, she would really struggle to have a bowel movement and when she did she was obviously in pain. The stools were not as they should be either. After speaking to a health visitor we made the decision to switch to another formula which aids constipation. Since then my daughter has been like a different baby.
SMA gold was not the right formula for my baby, but it works great with other babies so its just a matter of finding what suits. SMA has a lot of good points which is why I choose it to begin with - it just didn't work for us.
I have used SMA Gold with both of my boys since birth.
My mum used it with me and my sisters, my sisters used it with their kids which is the reason I chose SMA Gold for my boys.
The tin is rich and colourful and details very well how to prepare a feed and also shows a guidance table as to how much milk your baby should be feeding (which I found helpful with my first).
The tin has a yellow lid and under that it is sealed with a ring pull top. Before purchasing the formula I ALWAYS peek under the yellow lid to make sure the ring pull has not been tampered with. (Might be a useful tip for you - or just paranoia on my part lol). No harm in being careful when it comes to baby stuff!
The powder is light and fluffy and dissolves well if prepared properly. Sometimes if the water hasn't been allowed to cool a little first, the milk clumps and sticks to the bottle. However, the water does have to be warm enough to kill any germs. (All this is true of most/all formulas though I'm sure).
A little measuring scoop comes inside the tin. This can sometimes be a pain to find and you don't want to start rummaging through the powder with your hands. I tend to use the clean knife I will use to level the powder, to fish the scoop out.
My boys have never had any problems using the milk. They were always satisfied with their feeds and poo'd and pee'd regularly (too much information I'm sure, but it is something that can be a worry for some parents). Also, they managed to keep the milk down well too so obviously was sensitive enough for their growing little tummies! :)
I feel I am a bit of an expert on SMA Gold Infant milk as I am now on my fourth child and I have fed all of my children with this formula milk. With my first child, I originally started using a different formula milk but switched as it was making my daughter be sick after her bottle. I therefore switched to SMA Gold because I remember having a leaflet about it and being recommended to use this formula milk by my health visitor at the time.
This formula milk is suitable from birth to six months and onwards. From six months, SMA produce a different milk which is more suitable for older babies. The formula comes in both ready made cartons and a tin of powder which is made up using cooled, boiled water. There are clear instructions on the tin on how to make up feeds and there are also guidelines on how much your baby should be drinking at each age and weight. I find this chart very useful as it helps me to see that my baby is getting enough milk and I am not over or under feeding them. Of course all babies are different and some may need more or less than the recommended guidelines.
The tin of formula milk comes with a plastic scoop which is used when measuring out the amount of powder to be added to the water. The tin comes with a bright yellow plastic lid which keeps the tin airtight and the powder fresh.
There are two different sizes of ready made up cartons which are very useful in the case of emergencies or if you are out and about. I used the smaller version of the cartons when we went camping 4 months after my second child was born. We used an individual carton for each feed along with a pre-sterilised bottle in a pack. This made it very convenient and meant I didn't have to worry about sterilising bottles or making up bottles whilst camping.
When I had my subsequent children, I didn't have to worry about which formula milk to choose as I had never had any problems with SMA Gold with my first daughter.
SMA Gold is widely available in supermarkets and the tins are priced at around £7 per tin. A tin of powder lasts about a week normally for me, although when my babies were very small, a tin lasted a bit longer than a week.
I fully recommend SMA Gold formula milk if you are bottle feeding your baby. Although as all babies are different, some babies may not get on with SMA Gold but I personally have fed all my babies on SMA and have never had a problem.
I have been exclusively breastfeeding my baby but in the last few weeks I have been introducing formula milk to slowly get her used to it and the brand I decided to choose is SMA.
At the moment I am using SMA Gold First Infant Milk which is suitable from birth onwards. According to their packaging SMA's gold system is an advanced range of specially designed formulas to help met the nutritional needs of babies and young children. Every product has a tailored nutrient profile for each stage of growth and development.
The formula can be purchased in two forms, a powder and also a ready to use liquid. I generally buy the tubs of powder as I find they are easier to use when I am at home. The ready to use liquid is great when you are out and about as it comes in a carton which you can then just pour into your baby's bottle and feed straight away.
The Number 1 powder is called a breast milk substitute and is the best infant milk to use when baby is not breastfeed or to combination feed. At the moment I am combination feeding but will soon just be using this formula solely. I decided to use SMA as I had tried a few brands and this seemed to be the one that my baby girl liked the best. The formula is said to include Omega 3 and 6 LCP's. When reading the list of the ingredients you can also see that it includes lactose, milk powder and so on so if your baby does have any allergies against lactose then this is not the formula to use.
The formula is extremely easy to make up into a drinkable milk. There is a table on the side of the tub to tell you how much to use, for example for a 6 month old baby you would use 7 scoops of powder and then add 7 fl oz of water. I find it very easy to remember because it's the same number. There is a scoop provided in each tub of formula so you always have something to measure out the powder with. You have to add water that has been boiled and left to cool for about half an hour as this helps to protect against germs. This is the only part that I find a bit annoying as I must remember to boil the kettle a while before I want the water although you can make a feed up as long as it is used within 2 hours. They do recommend on the tub that you can run the bottle under cool water to cool it down even more if needs be.
Once made up the milk is quite creamy but to me has quite a bland smell and taste, it is not like real milk but that is what babies like and my little girl sure gulps it down.
I purchase the 900g tubs which cost £7.24 from Boots. I would say that these tubs probably last about 2-3 weeks so on the whole it is not too costly. Obviously I am a supporter of breastfeeding but I have found this a great transition milk and if you find you can't breastfeed then this is a great milk from birth too.
There are many different Milk Formulas available and it's often hard to know which one to go for as they all claim different things and to be nearly as good as breast milk.
The reason I chose SMA is because it has been around for 90 years and is the Formula I had when I was a baby along with my older sibling.
SMA Gold is the Formula that is suitable from Birth onwards (the one pictured.)
It comes in a 900g very sturdy tin and also ready made cartons. The tin has slightly changed to become more modernised, but is still yellow with SMA Gold clearly written on it, so you won't miss it when out shopping.
The Formula is whey dominant and has an alpha-protein in which is a high quality protein and abundant in breast milk.
Protein is essential in babies, as it helps their growth and development.
The Formula also contains Omega 3 and 6. Omega 3 and 6 is known to help brain and eye development.
SMA Gold is said to be an easy digest Formula meaning it is kind on the little ones stomach and kidneys.
- Using SMA Gold -
As I Have said it comes in a sturdy tin, the yellow plastic top pulls off easily and there is a layer of foil covering the actual Formula keeping it fresh while in the shops.
The Formula is a light coloured powder and extremely easy to scoop up in the scoop provided in the Formula.
One level scoop of Formula equals one ounce.
E.g- 5 Ounces of water = 5 level scoops of Formula.
On the side of the tin is a guideline on how much Formula your baby should have. Although every baby is different so they may be having a bit more or less milk compared to the guideline.
But I have found it interesting to look at.
I haven't had any problems with SMA Gold. Little one took to Formula very well and guzzled the bottle within minutes.
Little one was always happy in between feeds and was never sick after a bottle!
The Formula really helped Little one to grow and develop.
- Other SMA Products & Prices -
SMA make the Gold Formula in many different ways:
You can purchase it in a 900g tin for around £7.25, I have always seen this in every supermarket and it is widely available.
Ready made cartons in 1Ltr or 250ml. 1 Litre will set you back £1.90 and 250ml 56p.
These ready made cartons are great if your out and about or Little One is having a day/ few hours without you!
Starter Pack- 12 x 100ml bottles. £14.98
These are the bottles you get when your in hospital, you can now purchase them for home use.
SMA Gold is suitable from birth to 6 months old or onwards. At 6 months SMA make a Follow On Formula which is to complement weaning.
*SMA Gold (Birth Onwards)
*SMA Follow On (6 Months Onwards)
*SMA Toddler Milk (1 Year Onwards)
*SMA Extra Hungry
*SMA Staydown Milk
*SMA Lactose-Free (LF)
*SMA Soya (Wysoy)
They also make special milk for premature babies and babies with increased energy and nutrient requirements.
- Overall -
It's hard to write about Formula as you can't really recommend it as every baby is different.
But it has been a brilliant Formula for Little one and I wouldn't use any other Formula in the future.
Even though you may get through a tin a week it's price is quite good. It is one of the cheaper Formulas on the market.
And as I have said it can be purchased anywhere!
5 DooYoo Stars.
Now known as Sma - 1st Infant Milk (from birth).
My son was premature and had a birth weight of 4lb 10oz. As he was so early and born by c-section it took longer for my milk to come in so I chose to give him Sma Gold. I know there are a few different brands out there but I trust Sma after giving it to my 1st child (8yrs ago). He took to the milk easily and didn't have a problem switching between this formula milk and breast. Unfortunately, I wasn't aware that using an electric breast pump would make my milk supply reduce and within 8 wks there was virtually nothing left. Thank goodness I had Sma Gold to fall back on full of nutrients and protein essential for my baby. I did try a ready to drink formula by another major brand but it seemed to make his colic and wind worst. Sma boast that their formula is also rich in omega 3 & 6 and easier to digest.
From 6mths you can move baby on to, Sma Follow-on Milk which is specially designed for babies who are weaning. Sma do a variety of milk from breast milk fortifier (for prem babies) to soy milk.
For more information you can visit the official Sma website: http://www.smanutrition.co.uk/
You can also join their club for free and get useful tips.
After failing to breastfeed successfully after the first few days, my and my wife had to pick some baby formula to use in the hospital, so we picked SMA. Its perhaps the most common and popular baby ilk, so we thought we would use that/.
Whilst breastfeeding might be considered nutritionally superior, this baby formula seems to have done the job very well for our son who is now on the follow on formula by SMA.
The powdered milk comes in a tin, with a ring pull seal under the cap, for freshness. Its very simple to measure out and workout how much formula your baby should be having. On the side of the tin it gives a guideline for how much mil the bay should be having, ad also how to ix the formula with water.
In the tub comes a plastic scoop. One level scoop makes 1 ounce of milk, so you will soon find if you are giving your baby 5 bottles a day with 6 ounces in ach, the formula soon gets used. At the moment, the formula costs around £7.25, and a tin on average will last around a week.
So how does it go down? Very well. Our son would guzzle his bottles, and seemed to fill him up rather well. Its well documented that formula milk will fill babies up more than breastfed babies, so you don't need to feed them as often which can be handy. I also found that it didn't overfill my son, and it didn't make him be very sick.
The only downside to using the formula is that when you put the scoops into the bottle, if the bottle is warm, the powder tends to stick to the scoop due to condensation, so you have to make sure you measure out the powder accurately.
There are so many different brands and product types when it comes to buying babies first milk.
I have only tried Sma Gold, and it was due to recommends from my family, friends and midwife that i chose to use the Sma milk.
My daughter Olivia was a small baby and at 6lb 6oz I found it difficult when i breastfed for the first 3 weeks. So i decided it was time to bottle feed. Olivia was a hungry but small baby, and we needed to get her a steady weight gain and feed her on demand.
However despite her being a hungry baby my midwife was adament that The SMA hungry baby formula was not something she would recommend.
Straight away Olivia took to Bottle milk, and it wasn't before long that her weight was steadily increasing
I buy SMA Gold at my local sainsbury's and it cost's me £7.25 a tin.
At first i thought it seemed quite expensive but considering it is all your baby needs it is rather reasonable.
Parents on a low income, or on welfare benefits, will also receive Healthy Start vouchers of £6.20 a week.
So that only leaves you spending about 95p
My daugher is now 13weeks and a tin lasts her about 5-6 days and she normally has 4-5 6oz bottles a day.
When we first started on the bottles she was having 4oz bottles, and the tins were lasting about 10 days.
SMA Gold has everything in it that a baby require's and despite alot of babies nowadays being weaned from 4months, Formula milk is all your baby needs til about 6 months. Which is when their digestive systems are strong enough to handle anymore than milk.
Extra tip: Many midwifes will say not to give your babies water, but about 10z a day of cool boiled water will help reduce colic, prevent hiccups, and help to clean her digestive system and liver, helping to reduce colic and constipation.
There is a lot of choice when deciding which baby food to use with your new arrival and I have to admit that when my wife was pregnant and we were looking at the tins of formula milk in boots we were both a bit baffled as they all seemed to be around the same price but all advertising a different pluss to them,
We opted for sma as we were unsure as to weather my wife was going to breast feed or not at that point and it claimed to be the closest thing to breast milk so must be the best we thought.
My wife did try to breast feed but neither her or the baby took to this very well so we resorted to bottles and found sma gold very easy to use, you need to cool some boiled water then add one scoop of powder per ounce of water using the scoop provided in the tin.
Our daughter gained weight well on this milk and was very happy with it, my only advice is to bang the tin before opening for the first time as this brings the scoop to the top and stops you digging in the tub for it.
While breastfeeding is best for babies it isn't always right for mum for various reasons. When this is the case how on earth do you know which brand of infant milk to use on your baby.
Well while adverting and promotion of infant formula milk is not allowed. Manufacturer's use clever techniques to target their brand to pregnant and new mums rather than the milk itself. I have noticed it does seem very much to be aimed at mum's rather than dads. One way used it to create an on-line club for pregnant/ and new mums. The clubs usually offer you a special free gift when you sign up and offers guides through pregnancy and birth as well as the first year with your baby. You can usually sign up by post or on-line and ads are found in baby magazines and websites. Around the time I was pregnant with my first child SMA were offering a beautiful white hooded baby towel if you signed up so I did. I was sent a month-by-month planner with tips to guide you through your pregnancy which I did find quite useful. At this time I also signed up to other baby clubs and collected a lot of free gift but most important a lot of information about pregnancy and babies as I knew nothing. I wasn't swayed by the free gifts I choice SMA gold as it seemed to be the brand that had been around for years and was closest to breastmilk. You never get promotions infant milk, I think this is to discourage you from keep switching brands. Once you start a baby on a brand of milk you should stick with it unless it is making your baby unwell and you are advised to change by your health visitor.
Another factor that attracted me to SMA gold is it availability. You seem to be able to buy it all over. It is stocked by all the major supermarkets, chemists and can usually be found in your local corner shop. This is very handy and you shouldn't have any trouble getting hold of some if you run out like I often do as I've not planned ahead properly.
Another plus point is the various forms it comes. Firstly there is the standard 900g powered tin which I'm sure most people will have seen at some point on supermarket shelves. Only fairly recently the product has been update and the tin has a new design. The tin has the big SMA logo on the front as well as letting you now its stage 1 gold suitable from 0-12 months with a bright yellow plastic lid. The back of the tin contains vast amounts of information all of which I feel is needed. There are the ingredients which I'm not going to list, there is a suggested feeding amounts table as a guilde to how much milk your baby needs at various stages. This is particular helpful as you can keep track on how your baby is eating. There are also a full set of instructions on how to prepared a feed which should be read very careful as guidelines on making up feeds has recently changed and it is very important to make up feeds correctly or you could end up making your baby ill. Don't be alarmed if your mother or mother law pipes up thats not how we did it my day. I'd advise using the upto date advice to be on the safe side. A helpline phone number also features on the tin so if you have questions you can give them a call. So that's the bog standard tin which I expect you would use most of the time, it what I use most of the time.
However SMA gold infant milk also comes in other sizes and forms. They do a smaller tin which is exactly the same but half the size. I find this offers poor value for money when I recently ran out of milk I headed to the local shop where I was charged £6.99 for this small tin where as the large tin can be bought in the supermarket for around £7.29 I felt I has well and truly been ripped off but was out of milk and couldn't be avoided.
Next you can buy sma gold sachets that each make up a 9oz feed. These are handy to make up if your out and about you can carry round warm water in a flask to make up the feed when you require them. I have trouble getting hold of these but I know toys r us stock them as well as boots sorry I don't know the price of these.
Sma gold also comes in cartoons which are UHT . These are handy as they can be consumed by been poured directly into a sterile bottle and do not have to be heated although they can be warmed up either. My son is happy to have the milk without it been warmed up so usually when I'm out and about I pack a sterile bottle and a 250ml cartoon. While there is waste this way as my son doesn't finish a whole feed I don't mind as I find them very convenient. These can usually be found in all the major supermarkets and chemist and cost 56p. Also 1 litre cartoon are priced at £1.90 perhaps these would be useful if you were going some where with a fridge and microwave as once open it needed to be kept in the fridge but handy if you were visiting friends and family for the day.
The last form are small glass bottles of UHT SMA gold with sterile teats. These are usually used in the hospital but I did see them in a large Asda store and can be bought as an Sma Gold Starter Pack 12 x 100ml Milk Bottles & 12 x NUK Teats.Priced at around £14.49 they offer poor value for money and I wouldn't recommend them.
I have to say I find the taste of SMA gold foul. I have tried it and its gross although it certainly not designed for adult consumption I just tried out of interest when testing a bottles heat on my hand I certainly wont bother again. Also when bottle are left out for some time then opened the smell is disgusting. I'd advise washing up bottle straight after use.
My son has been gaining weight nicely on SMA gold. I haven't had any problems he seems happy enough drinking it and is well and has no health problems. His stools tend to be yellow and soft but from time to time they do become greenish in colour and quite hard. I am happy to recommend SMA gold to new mums. Both my sons have been feed SMA gold.
When i was pregnant with my first child i wanted to breast feed her but new that not all mothers and babys took to this well so thought i had better get some formula milk in just incase, wholst looking at all the milks available in boots i decided on sma gold.
My reason for deciding on this was that it was the only formula milk at the time that not only claimed to be suitable for when you decide to move on from breast feeding but was also suitable to use to suppliment breast feeds aswell.
It claimed to be easily digested and to support the babys immune system just like breast milk would have done.
This milk was available in tins of dryed powder for you to make up at home your self by adding it to cooled boiled water and was available in two different sized tins. It is also available in ready made cartons which are available in two sizes.
To begin with i opted to stock up on a few ready made cartons as i didnt want to open a big tin to only waste it as i was intent on breast feeding as much as possible, my baby took to the ready made cartons well and she had no trouble drinking this or keeping the milk down and had no preference over the sma or breast milk.
Once i stopped breast feeding i changed onto the tins of dryed powder as the cartons were working out very expensivve for us, my daughter was instantly sick with this but we perservered as the doctor recomended for two weeks to allow her stomach to adjust to the new milk but she never adjusted and didnt stop being sick after every feed and brought back most of her feed every time.
After frequent visits to the doctors and numerous changes of milk from this to stay down to wysoy we eventually went back to the ready made cartons and her sickness stopped immediately, it turned out my daughter was allergict to the drying agent in the powdered formula, after this we stuck to ready made milks.
Sma in my opinion is the best brand around i have used it with both my children and am about to use it with the third, other than the allergy to the drying agent which she would have been to every type of dryed milk we had no complaints with this milk at all.
i choose feed my daughter sma gold as my son had been in the sma follow on after i finished breast feeding and i felt that sma was a good option as it was competitively priced and there was a wide range of products available such a ready made cartons, one feed sachets etc etc. from the word go my daughter was really unsettled. she seemed to dislike the taste and constantly got stomach aches and constipation. i spoke to a lot of people about the problems we were having and was told by many that they had had the same issues with sma. i have now swopped brands and my daughter is like a different baby, so much more settled and now thriving. i have been told that this can be a problem with this brand by health professionals. definately worth avoiding if your baby is prone to constipation!
We have been using SMA Gold for two weeks now, having previously tried Aptamil for a couple of weeks and then switching to Cow & Gate for two months. Both of these milks made my daughter very windy, despite us giving her gripe water/Infacol and trying anti colic bottles.
She was noticeably less windy after just the first day on SMA Gold. She also seems to be enjoying her bottles more, maybe it tastes better, I wouldn't know!
As with other formula brands, the product comes with a scoop that is especially made to provide the correct amount of powder: 1 scoop to 1oz of water.
I also like that you can buy the tins of formula in two different sizes - the smaller tin is handy for keeping at nan's house maybe, and the cartons of ready made formula also come in a variety of sizes. It used to be a pain having to lug several small cartons of Cow & Gate around if we were out for the day, at least with SMA Gold you have the option of a 1 litre carton that will keep in the fridge for 48 hours once opened.
The only thing I would say is prepare for their number twos to change drastically!
The only downside I can think of with SMA Gold is that you don't get the handy formula leveller that you get in the corner of the Aptamil and Cow & Gate tubs. Still that's only a small point that can easily be overcome by using a knife and doesn't affect the formula itself in any way.
UPDATE: Since my original review I have had to take my daughter off SMA Gold as although initially she seemed better on it, over time it was apparent that she was becoming more and more constipated, distressed and unsettled. I have now changed her to Cow & Gate Omneo Comfort and she is much improved.
SMA Gold is a nutritionally complete, whey based infant milk and contains a unique balance of essential nutrients found naturally in breast milk.