Among vitamins and supplements, one of the most common for energy is folic acid. Folic acid is a B vitamin that has been proven to increase energy levels. 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. Side effects are very rare, although they happen and may prevent certain individuals from taking these supplements. If you ve been having problems with your bones or just looking to keep your bones healthy, calcium supplements are what you need. You can find them online, or through local nutrition stores such as GNC. This is a common problem, one that is usually caused by a poor level of acid in the stomach, toxic in the gut, or a lack of production enzymes that assist with the breaking down process. There are other causes as well, although the above are the most common. Problems with the digestive tract can be improved quite a bit if you slowly increase your intake of nutrients. 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. If you include vitamin C in your diet and take it every day, you ll notice that your skin will benefit. If you use vitamin E and C together, you ll notice that scars and other harmful defects on your skin will start to heal as well. You can find vitamin C in many fruits and vegetables, although oranges will give you the most amounts. Vitamin E has been shown on numerous occasions to shield the skin from the harmful rays of the sun, which as we all know, can lead to skin cancer. If you include sources of vitamin E, or supplements in your diet you can help to prevent the damage of UV rays to your skin. When included with vitamin C, vitamin E can be one of the most important vitamins for your body.