Osteoporosis can be prevented by taking calcium supplements. Estrogen levels, exercise, gender, body size, smoking, race and heredity are all important aspects that relate to osteoporosis. The most effective treatment in postmenopausal women may be a combination of extra calcium, exercise and estrogen. Many factors are associated with PMS, and one critical factor is the importance of eating well and regularly. Zinc shortens the amount of time that you have a cold.
More study is needed to determine how much zinc to take and when.
These megavitamins may contain 10 to over 100 times the RDA for a vitamin or mineral and can act like drugs with potentially serious results. Taken in high amounts, some supplements may produce undesirable effects such as fatigue, diarrhea and hair loss. Others may cause more severe side effects such as kidney stones, liver or nerve damage, birth defects, or even death. At high levels, single-nutrient supplements function as a drug in the body and not as a nutrient. A and D are harmful in high doses.