Those who take a broad range of food products, including dairy products, legumes, whole grains, fruits, fresh vegetables in their daily diets stock their body system with all the adequate nutrition required during pregnancy. However, maintaining this perfect diet, especially during the first two trimesters in the midst of morning sickness becomes a little hard. Therefore, at such times, expecting mothers are strongly recommended the daily dosage of prenatal vitamin and mineral supplements that make their body healthy enough to nourish a growing baby.  Expecting mothers are advised to take prenatal vitamin supplements that are rich in folic acid and iron. The minimum concentration of folate recommended for pregnant women is 400 mgs. Ideally, this nutrient should be taken at least a month before one starts trying for a child. Otherwise, the daily intake of this nutrient is a must in the first trimester so as to save the child from birth defects. Further, around 30 mgs of iron is required on a daily basis so as to gradually increase the volume of blood in the mother. Furthermore, Vitamin D is another essential need integral to the proper development of bones. Furthermore, this vitamin aids in the complete absorption of calcium into the bones.