Tag Archives: sour milk

Ask a Baby Blogger: Can Too Much Exercise Make Your Milk Sour?

Several have posed this question to me recently so I thought I would take some time today in the baby blog to answer it. It used to be that conventional wisdom told mothers not to exercise while breastfeeding. When you exercise your body increases the production of lactic acid which would make your milk taste sour to the baby and would either upset her stomach or cause her to reject it. Current research does not really support this idea. The most current research that I’m aware of (and here’s where I admit that I haven’t seen anything on this particular … Continue reading →

Sour Milk?

It’s true that even after you’ve properly stored your milk (and sometimes even before you store it) your breast milk can go sour. It may taste and/or smell sour, metallic or simply rancid. It is not a typical problem but it does happen occasionally: too much lipase. Lipase is an enzyme that breaks down fat. Fat however, it what makes breast milk taste good. Fat actually makes lots of foods taste good for that matter, but I’m getting off topic here. Essentially the lipase is “eating up” all the fat in mom’s breast milk and the result is sour tasting … Continue reading →