Fortunately, soybeans have been made into tofu and texturized vegetable protein (TVP) so that they can be made into various dishes. Additionally, one may eat from a wide variety of vegetable sources in order to obtain all the essential amino acids. Iodine is vital to the growth of hair. Sheep farmers long ago discovered that vegetation void of iodine due to iodine-depleted soil will adversely affect the growth of wool in sheep. Likewise, our hair needs iodine to grow. Iodine is synthetically added to table salt, however in this form it is not assimilated well into the body and can therefore cause iodine overload. An excess of iodine in the body can adversely affect the thyroid. It is best to use non-iodized salt and retrieve your iodine from natural food sources. These include seaweed, salmon, seafood, lima beans, molasses, eggs, potatoes with the skin on, watercress and garlic. One of the most difficult nutrients vital to hair growth to get in one's diet is the trace mineral silica. Silicon is a form of silicon and is the second most abundant element in the earth's crust, second only to oxygen. The Earth provides everything we need for health, and with silicon being so abundant, it would seem that there would never be a problem with silica deficiency. Unfortunately, trace minerals are rare in Western diets because our food is processed and our soil depleted by chemical treatments so often that trace minerals are lost. Silica is vital to the strength of hair, and although it will not necessarily stop hair from falling out from the follicle, it will stop hair breakage. It works by stimulating the cell metabolism and formation, which slows the aging process. Foods that are rich in silica are rice, oats, lettuce, parsnips, asparagus, onion, strawberry, cabbage, cucumber, leek, sunflower seeds, celery, rhubarb, cauliflower, and swiss chard. Note that many of these foods, particularly rice, are a large part of Asian diets and Asians tend to have the strongest and healthiest hair. Be sure to seek out all the above foods from sources that grow food organically, as this is vital to obtaining the trace minerals that are usually not present in North American soil and therefore not in American foods. Additionally these foods should be eaten uncooked, or in the case of rice-unwashed, as trace minerals are easily cooked and washed away. Essential Fatty Acids (EFA's) are fatty acids that are needed by the body yet not produced by the body. EFA's are a key component to healthy skin, hair and nails. Common skin diseases, such as those discussed later in this article like eczema and seborrhea, are in part caused by deficiencies in EFA's. Including deep-water fish such as salmon, sardines, mackerel, trout, or herring approximately three times a week will provide sufficient amounts of EFA's. However, if for some reason you cannot eat deep-water fish or have an extreme dislike for it, it may be necessary to take a supplement to obtain the required amount of EFA's. Last but not least, make sure to include the proper amount of water in your diet. Water is vital to proper hydration, which is necessary in order for all nutrients to be utilized properly by the body, not to mention the proper function of every cell in the body including hair follicles. The suggested amount of water intake daily is eight 8-ounce glasses of water a day, or 64 ounces a day. Although nutritional remedies were those that were discussed here, supplements can be used if one feels they are simply unable to eat properly due to work schedule or dislike of certain foods. Nutritional supplements containing these same vitamins and minerals can be taken, with the exception of water of course. Be sure to always take supplements that are naturally chelated, meaning that the supplements were developed in a natural base. This will ensure that the supplements you consume will be more readily absorbed in the body. There are some cautions to taking supplements of certain vitamins and minerals, particularly those that are fat-soluble because the body stores them. Back to: Hair Care  Celebrity Hair - How to Get It 7 Great Hair Care Tips  Hair Facts and Hair Loss Basics