Low blood levels of vitamin D are associated with an increased risk of breast cancer. Also, breast cancer patients with optimal levels of vitamin D in their blood can expect to live longer than breast cancer patients with low blood levels of the nutrient. But how much vitamin D is needed to prevent the dreaded disease?

Cataracts is a common cause of impaired vision, especially among the elderly. However, a new study of twins and the impact of genetic and environmental factors shows that higher intake of vitamin C may have help prevent this eye disease.

It pays off to make sure to get enough omega-3 from your diet or by taking supplements. Studies show that the content of omega-3 fatty acids in the blood are linked directly to a lower risk of developing atherosclerosis and dying of a heart attack. This was ween in a large epidemiological study that is published in the journal JAMA Internal Medicine.

A selenium deficiency may increase the risk of gluten intolerance/celiac disease, which can lead to metabolic disorders and vice versa. Because selenium deficiencies may be a result of eating a poor diet and suffering from malabsorption, this may easily turn into a vicious cycle.

PMS (Premenstrual Syndrome) entails a long list of symptoms such as headaches, mood swings, fatigue, irritability, fluid retention, and a strong craving for sweets and stimulants - and even a desire for divorce.

Overweight or obesity during pregnancy is linked to low vitamin D levels. This negatively affects the health of the expecting mother, and in the long run it increases the child's risk of weak bones, overweight, type-2 diabetes, and allergies.

According to a study that was presented to a group of endocrinologists at an Edinburgh conference, supplements of vitamin D may improve sports performance and reduce the risk of cardiovascular disease. One of the things vitamin D does is to block the stress hormone cortisol that makes your blood pressure go up. The problem is that many people lack vitamin D, not only in the winter time but even during the summer period.

Once the sperm cell has penetrated the egg cell, sparks fly from zinc atoms in a fascinating fireworks display. This new discovery may help fertility doctors select the most best eggs for in-vitro fertilization (IVF). The discovery also has relevance for all others who wish a successful pregnancy. It all boils down to having adequate zinc stores in the body.

A British study has shown that elevated blood sugar levels cause blood vessels to constrict. This strains the heart, raises blood pressure, and reduces the blood supply to other organs. It is therefore sugar and not saturated fat that is the cause of cardiovascular disease. We should be far more focused on how to control our blood sugar levels. Proper diet means a lot, and so does adequate intake of a particular essential trace element that appears to have a special role.