9. Selenium

Selenium

Selenium is a mineral beneficial to immunity, reproduction, and healthy thyroid function. Some individuals may take selenium supplements in the hopes of warding off cancer. However, the National Cancer Society states that studies on selenium supplementation in prostate cancer have had mixed results. In some cases, selenium supplements seemed to be beneficial. In others, selenium supplementation appeared to increase the risk of death from prostate cancer. Additionally, some studies suggest that high selenium levels contribute to the development of diabetes. For healthy doses of selenium, your best choice may be to consume plenty of eggs, nuts, and whole grains.

8. Vitamin B6

Vitamin B6

Vitamin B6 is an important vitamin that aids in immune function, brain and spinal cord health, food metabolism, and the formation of red blood cells. Individuals with kidney disease, absorption disorders, and certain genetic conditions may become deficient in this vitamin. According to the Mayo Clinic, excessive vitamin B6 supplementation can cause a loss of muscle control, painful skin sores, and sensitivity to sunlight. Additionally, vitamin B6 supplements can interact with certain epilepsy and cancer medications. Healthy individuals should achieve the necessary levels of vitamin B6 by consuming chickpeas, non-citrus fruits, potatoes, and fish.

7. Vitamin B12

How Much B12

Vitamin B12 aids in converting food into energy. It is also an important vitamin for nerve activity. Additionally, vitamin B12 contributes to the formation of the red blood cells that carry oxygen throughout the body. Vegans and individuals with conditions that prevent the absorption of nutrients may suffer a lack of vitamin B12. High doses of B12 can cause dizziness, headache, nausea, and vomiting. Certain gout, diabetes, or ulcer medications can prevent absorption of this supplement. This means money spent on this pill may go right down the drain. Meanwhile, eggs, meats, dairy products, and fortified cereals are good food sources of vitamin B12.


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