For many decades scientists and nutritionists ridiculed the idea of taking vitamins regularly, saying that a well-balanced diet provided all the nutrients that a person needs. In the past few years, however, studies have shown that this thinking may have been radically flawed. Modern medicine is now waking up to the potential of vitamin pills and what they can do for your health.

Research studies conducted during the past fifteen years have indicated that most people do not get all the vitamins and minerals they need from their regular diet. In fact, most studies now indicate that it is nearly impossible to do so! Depending on your general condition and specific health problems, you will need varying amounts of nutrients.

Since it is difficult to meet your daily nutrient requirements through food intake alone, vitamin and mineral supplements are necessary. While the supplements you take may change depending on your specific needs, you should generally have these seven nutrients covered, as they are essential to good all-around health.

Vitamin A. Vitamin A is an important component of cellular growth and plays a vital role in the maintenance of the immune system. Its natural food sources include carrots, pumpkins, carrots, fish oils and liver.

Vitamin B6. Vitamin B6, also known as pyridoxine, is a water-soluble vitamin that helps both the cardiovascular and nervous systems function properly. It also assists in the building of protein and the growth of red blood cells. Its natural food sources include avocados, bananas, soybeans, sunflower seeds, salmon, shrimp, milk, potatoes, lentils and brown rice.

Vitamin C. Vitamin C, also known as ascorbic acid, is a water-soluble vitamin that has antioxidant properties. It protects against free radicals and aids in the synthesizing of collagen. Vitamin C is highly-regarded as an immune system booster, particularly because it strengthens blood vessels. Its natural food sources include citrus fruits such as oranges and kiwis.

Vitamin E. Vitamin E, otherwise known as alpha-tocopherol, is another antioxidant that guards against free radicals. Recent studies also show that it defends against heart disease. Food sources include raw nuts like hazelnuts and peanuts, as well as broccoli, spinach, asparagus, and avocados.

Iron. Also known as ferrous sulfate, the main function of iron is to help muscles extract energy from blood. Iron is also essential for protein metabolism and the production of several brain neurotransmitters. Sources of iron include bread, egg yolk, oysters, red meats, chicken, and seaweed.

Folate. Folate, or folic acid, is a vitamin needed for building genetic material. It assists in the development of blood cells and muscles. Folic acid is essential for pregnant mothers since it contributes to the development of the fetus.

Zinc. Zinc is a trace mineral crucial to a wide variety of bodily functions; it stimulates about a hundred enzymes in the body. It aids in cell growth and is reputed to improve sexual appetite and performance. It is commonly found in oysters, meat, and fish.