For example, some ingredients may be safe in products such as cleansers that we wash off the skin immediately, but not in products that we leave on the skin for hours. Similarly, ingredients that are safe for use on the hair or nails may be unsafe when used on the skin or near the eyes.
Carbohydrates are the main energy source for the brain. Without carbohydrates, the body could not function properly. Sources include fruits, breads and grains, starchy vegetables and sugars. Make at least half of the grains you consume whole grains.
1 Sugars, amino acids and fatty acid serve as fuel for our cells to produce energy.  Adenosine triphosphate (ATP) serves as the energy currency of cells. It temporarily stores the energy produced from the breakdown of sugars, amino acids and fatty acids, and deliver this energy to any cellular process that requires it.