Funk was the first to discover vitamins as we know them today, although vitamin A was actually the first one discovered, hence the letter A in the title of the vitamin. You can find vitamin A in natural foods such as oranges and yellow fruits. It can also be found in vegetables as well, such as spinach and fats. Cholesterol, which is a fatty substance found in many foods, is absorbed by the body then transferred from the liver to be stored by tissue as fat. This is carried through the bloodstream by molecules known as LDL (Low Density Lipoproteins). When the LDL is oxidized, it reacts to the cholesterol and a fat substance known as plaque begins to get deposited on the artery walls, which causes the blood flow to stop. These days, you can find supplements more sophisticated than ever, available in many different forms such as liquid, capsules, pills, and teas. There are some that are still home grown, although they aren t as popular as those that are commercially supplied. In general, nutritional supplements are taken to help with diets that are missing vital nutrients and minerals. Vitamins For A Healthy Heart As we all know, vitamins are very important when it comes to keeping your heart healthy. You need to eat the right foods of course, although you also need to supplement the food you eat with the necessary vitamins your body needs to stay in shape and keep your heart working healthy for a long time to come. Even though you can look for vitamins that provide energy, it would be in your best interest to find those that can be effective with fighting fatigue as well. There are vitamins, nutrients, and supplements that are great for fighting fatigue and helping the body stay alert. The vitamin known as NADH is very powerful for energy, although many people aren t aware of it. No matter how you look at it, zinc plays an important role in the function of most of our senses, which includes the ability to taste, smell, and also sight. Research has indicated that zinc can counter vision loss in the event of macular degeneration. A deficiency of zinc on the other hand can lead to dulling of the taste buds, along with the ability to detect scent.