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 A source of energy â Our body uses the fat we eat, and fats we make from other nutrients in our bodies, to provide the energy for most of our life-functions. 2  Energy store â The extra calories that we consume, but do not need to use immediately, are stored for future use in special fat cells (adipose tissue). A source of energy â Our body uses the fat we eat, and fats we make from other nutrients in our bodies, to provide the energy for most of our life-functions. 2  Energy store â The extra calories that we consume, but do not need to use immediately, are stored for future use in special fat cells (adipose tissue).