According to a recent study in the Archives of Internal Medicine, 75 percent of Americans do not get enough Vitamin D. Researchers have found that the deficiency may negatively impact immune function and cardiovascular health and increase cancer risk. Now, a University of Missouri nutritional sciences researcher has found that vitamin D deficiency is associated with inflammation, a negative response of the immune system, in healthy women.

Science Correspondent for the Telegraph in Amsterdam has reported on the findings of a Finnish study.

“Researchers found that women who took the food supplement during and after pregnancy saw a bigger reduction in both their waistline and overall body fat.

They found that six months after pregnancy the women taking the probiotic were half as likely to have a pot belly.

Heart disease is the number-one killer of women in the United States. And an estimated 8 million women have it. What's more, a new study shows that in recent years the overall heart disease risk for Americans-especially women-hasn't continued the healthy downward trend it showed in previous decades.

Here are some practical ways to prevent heart disease. Start with these age-specific steps.

During your 30's

Do not eat any foods that contain trans fat.