There are over 6,000 known Flavonoids, a group of phytonutrients found mostly in the skin or peel of the fruit or vegetable. Proper storage of your fruits and vegetables will preserve the shelf life of the flavonoids, which can also be depleted when heated. 

Iron helps regulate the body's temperature and is good for improving energy levels and the ability to focus. It is essential for the production of red blood cells, which carry oxygen from the lungs to the rest of the body.

Vitamin A (retinol) is essential for good eyesight and extremely helpful in preserving our skin, joints, eyes and internal organs. If there really was a Fountain of Youth, retinol would be one of the key ingredients and it would probably be reddish-orange due to the beta-Carotene. The body converts the red-orange pigment into Vitamin A. It also supports the immune system, bone metabolism, and development of embryos in reproduction. It is an antioxidant vitamin, which destroys free radicals in our body. Free radicals are produced by the body when we smoke, don’t eat a proper diet, or are exposed to stress or pollution. They are also suspected of contributing to cancer and cardiovascular disease. Pregnant women who are deficient in Vitamin A are more likely to have premature birth or very low birth weight. Women who have high levels of Vitamin A have a lower risk for breast cancer.

Vitamin A is made by your body when you eat carrots and other yellow and orange fruits and vegetables which contain beta-carotene, such as sweet potatoes, pumpkin, cantaloupe, papaya, peas, butternut squash, mango, and dried apricots. It is also found in spinach, kale, collard greens, broccoli, tomato juice, peppers, watercress and full fat dairy products (butter, milk, eggs, cheddar cheese). Interestingly enough, these are ready to eat raw and cooking them causes the loss of some of the vitamins. Liver, beef, chicken, turkey, and fish are also high in Vitamin A content. 

Folate has many functions. Like Vitamin B7, it helps prevent birth defects in babies if consumed during pregnancy. It may also slow the effects of age on the brain. Folic acid helps create red blood cells and repair DNA. It can help prevent Alzheimer's and some forms of cancer.

You can get plenty of folic acid in your diet by eating greens like broccoli and green beans, leafy greens like spinach, papaya, lima beans, asparagus, avocado, and squash. Citrus fruits, strawberries, nuts, seeds, beef liver, eggs and legume also provide folic acid, as does brown rice, wheat germ and fortified grains. Fortified foods contain Folic Acid, the synthesized version of Folate.

Vitamin K (naphthoquinoids) is produced by the body and is responsible for blood clotting. After you’ve been cut, it works to stop you from losing too much blood. Taking antibiotics can cause deficiencies in Vitamin K but you can rely on green leaf vegetables to replenish your supply.