Herbs, Vitamins and Supplements Amino Acids Amino acids are available individually, in combinations, or as part of a multivitamin. A balanced diet, however, should provide adequate amounts of all the amino acids you need. Herbs Medicinal herbs are widely used, although scientific research is often scant on their effectiveness and safety. Look here for information on more than 30 herbs, from alfalfa to valerian. Minerals Your body needs two types of minerals: macrominerals and trace minerals. How much calcium do you need? Zinc? Copper? Iron? You'll find recommendations here on safe daily intake. Vitamins The alphabet soup of vitamins – A, B, C, D, E, and K – also includes more exotic-sounding substances like biotin, pyridoxine, and pantothenic acid. This section gives you the lowdown on what you need for good health. Other Is it safe to take shark cartilage? What is flaxseed good for? Can bone meal help you sleep better? Can dolomite be used for a bladder infection? You'll find the answers here. All Not sure whether your supplement is a vitamin, a hormone, or something else? Click here for a complete list of all dietary supplements in our nutritional database.