Chapter 15: Pregnancy and Nutrition

15.2 Early Days of Pregnancy

University of Hawai‘i at Mānoa Food Science and Human Nutrition Program

The Early Days of Pregnancy

For medical purposes, pregnancy is measured from the first day of a woman’s last menstrual period until childbirth, and typically lasts about forty weeks. Major changes begin to occur in the earliest days, often weeks before a woman even knows that she is pregnant. During this period, adequate nutrition supports cell division, tissue differentiation, and organ development. As each week passes, new milestones are reached. Therefore, women who are trying to conceive should make proper dietary choices to ensure the delivery of a healthy baby. Fathers-to-be should also consider their eating habits. A sedentary lifestyle and a diet low in fresh fruits and vegetables may affect male fertility. Men who drink too much alcohol may also damage the quantity and quality of their sperm[1].

For both men and women, adopting healthy habits also boosts general well-being and makes it possible to meet the demands of parenting.

Folate

A pregnancy may happen unexpectedly. Therefore, it is important for all women of childbearing age to get 400 micrograms of folate per day prior to pregnancy and 600 micrograms per day during pregnancy. Recall from chapter 11 that folate, which is also known as folic acid, is crucial for the production of DNA and RNA and the synthesis of cells. A deficiency can cause megaloblastic anemia, or the development of abnormal red blood cells, in pregnant women. It can also have a profound affect on the unborn baby. Typically, folate intake has the greatest impact during the first eight weeks of pregnancy, when the neural tube closes. The neural tube develops into the fetus’s brain, and adequate folate reduces the risk of brain abnormalities or neural tube defects, which occur in one in a thousand pregnancies in North America each year. This vital nutrient also supports the spinal cord and its protective coverings. Inadequate folic acid can result in birth defects, such as spina bifida, which is the failure of the spinal column to close. The name “folate” is derived from the Latin word folium for leaf, and leafy green vegetables such as spinach and kale are excellent sources of it. Folate is also found in legumes, liver, and oranges. Additionally, since 1998, food manufacturers have been required to add folate to cereals and other grain products[2].


  1. Healthy Sperm: Improving Your Fertility. Mayo Clinic. 1998–2012 Mayo Foundation for Medical Education and Research. http://www.mayoclinic.com/health/fertility/MC00023. Accessed February 21, 2012.
  2. Folic Acid. MedlinePlus, a service of the National Institutes of Health. 1995–2012 http://www.nlm.nih.gov/medlineplus/druginfo/natural/1017.html. Updated August 7, 2011. Accessed November 22, 2017.
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