Keep a chart of what you've been eating, and when. But don't drastically alter your diet without talking to your doctor first. Like drugs, chemical ingredients from herbs do get into breast milk. While herbs such as fenugreek and fennel have been used for centuries to increase a breastfeeding mother's milk supply, little is known about how herbs affect a breastfeeding baby. You should check with your doctor before taking any herbal remedy.
Most teas are benign, but some have been known to cause liver toxicity.
These herbs are often used as milk boosters and are generally safe for your baby. Taking any of these herbs in high dosages may cause your perspiration to smell like maple syrup. Mint, sage, parsley These herbs, most often eaten in food, may dry up your milk supply. This herb is used to treat migraines. Don't take it while breastfeeding, as it may increase your baby's heart rate.