Important - we don't eat cows. We eat steer. Cows have been bred over the decades and centuries to give birth and milk, not to yield meat. That's important, because some cows are heavier than their steer counterparts (Holsteins, for example).
Naturally induced miscarriage is the act of using a combination of herbs, vitamins, massage, visualization and prayer to cause the body to miscarry or abort a fetus without mechanical or surgical intervention. The body itself is induced to expel the fetus.
Actually, you can enjoy a brew, but you need to watch quantity. Too much caffeine (also found in tea, cola and chocolate) can increase your risk of miscarriage. The NHS recommends a limit of 200mg a day of caffeine, the equivalent of two mugs of instant coffee.