Exercise and Breastfeeding
By Lisa Stone, ACE
Q. Is it true that exercise can reduce a woman's milk supply?
A. It's only true if you over-do it and don't stay well-hydrated and/or eat enough calories to compensate for those burned during exercise. I have always continued to exercise vigorously while pregnant and breastfeeding and never had any trouble with my milk supply.
Just make sure to get enough rest, eat a healthy diet, drink TONS of water, and don't exercise to exhaustion.