Controlling measures of anemia​

offers these suggestions:

Eat plenty of iron-rich foods, such as tofu, green and leafy vegetables, lean red meat, lentils, beans and iron-fortified cereals and breads.

Eat and drink vitamin C-rich foods and drinks.

Avoid drinking tea or coffee with your meals, as they can affect iron absorption

answer; planning ahead;

a mother eats twice as much to support her growing fetus

limiting sugar intake in a mother with gestational diabetes, switching from diving to swimming.   depending on whether the patient is normal weight, over weight or gain will differ depending on that.