Rabu, 02 Mei 2012

NUTRITION AND PREGNANCY


A balanced, nutritious diet is an important aspect of a healthy pregnancy. If the woman is healthy, balancing carbohydrates, fat, and proteins, and eating a variety of fruits and vegetables usually ensure good nutrition.
Those whose diets are affected by health issues, religious requirements, or ethical beliefs may choose to consult a health professional for specific advice.

Adequate periconceptional folic acid ( also called folate or Vitamin B9 ) intake has been proven to limit fetal neural tube defects, preventing spina bifida, a very serious birth defect. The neural tube develops during the first 28 days of pregnancy and this explains the necessity to guarantee adequate periconceptional folate intake. Folates ( from folia, leaf ) are abundant in spinach ( fresh, frozen or canned ), and are also found in green vegetables, salads, melon, hummus, and eggs. In the United States and Canada, most wheat products ( flour, noodles ) are fortified with folic acid.

Several micronutrients are important for the health of the developing fetus, especially in areas of the world where insufficient nutrition is prevalent. In developed areas, such as Western Europe and the United States, certain nutrients such as Vitamin D and calcium, required for bone development, may require supplementation.

There is some evidence that long-chain omega-3 ( n-3 ) fatty acids have an effect on the developing fetus, but further research is required. At this time, supplementing the diet with foods rich in these fatty acids is not recommended, but is not harmful.

Dangerous bacteria or parasites may contaminate foods, particularly listeria and toxoplasma, toxoplasmosis agent. Careful washing of fruits and raw vegetables may remove these pathogens, as may thoroughly cooking leftovers, meat, or processed meat. Raw-milk cheeses may contain listeria. Cat feces pose a particular risk of toxoplasmosis. Pregnant women are also more prone to catching salmonella infection from eggs and poultry, which should be thoroughly cooked. Practicing good hygiene in the kitchen can reduce these risks.

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