They are nutrition packed foods. I get mine as a powder through an MLM, but they are readily available as powders in your local health food store. Take whatever the recommended amount is on the bottle. Some of us really like tofu, miso soup and other soy products. The protein contained in tofu is more easily broken down by our digestive system, and it leaves behind fewer negative by-products than does meat.
Soy products are also a good source of calcium.
A woman uses up all the B vitamins in her body during the birth process, so it is important to continue taking this supplement after the birth of your child. Take several tablespoons of nutritional yeast every day. You can sprinkle it over your food, or make warm drinks to be taken during the day. Evening Primrose Oil, Flax seed Oil, etc. are high in the EFA s that are so essential for the development of the baby's nervous and immune systems. Take the recommended amount listed on the bottle.