Fats are Non Polar Substances
Fats, also called lipids, together with carbohydrates represent the major source of energy for the body. As in the case of proteins, fats are essential and nonessential. The essentials are those that the body can not synthesize, and are linoleic acid and linolenic acids, but typically are not absent from the body and are contained in meat, cold meats, fish, eggs. Biochemically, fats are non polar substances and are therefore insoluble in water. This is nonpolar because their molecules have many carbon and hydrogen atoms covalently bound to pure and therefore do not form dipoles that interact with water. We conclude that lipids are excellent insulators and separators. Fats consist of fatty acids. Overall call triglyceride oils of vegetable origin, and correspond to derivatives containing predominantly unsaturated fatty acids which are liquid at room temperature. (vegetable oils for cooking, and fish, see table). In the case of fats, these are composed of triglycerides consisting of animal saturated fatty acids, solid at room temperature. (butter, fat, chicken skin, in general: dairy, meat, chocolate, avocado and coconut).
Food Groups: Energy
There are 3 types of food: the energy, builders and protectors, if we want a complete nutrition, we must not forget that the secret is to have a balance of these three types of food because each has an important contribution to the development of children and adults. Within the energy giving foods are those that are rich in fats and carbohydrates.
FATS
It is the nutrient that gives more energy. For each given about 9 kilocalories per gram, while carbohydrates provide only 4 calories. The toddlers need fat because they spend a lot of energy, fats also are part of the nervous system is forming, as well as hormones that protect tissues and organs.
Foods high in fat whose main function is to provide energy include oils, butter, margarine, peanuts, pecans, walnuts, sunflower seeds.
As little children need lots of fats, especially vegetable fats-always recommended that they add 1 teaspoon of vegetable oil (any oil) in his plate of food (lunch and dinner) through 2 years of age .
CARBOHYDRATE
While fats to be converted into other substances for energy, carbohydrates are used immediately and not stored. They are the main “fuel” the body and brain.
The amount of energy consumed by the body for growth is enormous. It is therefore very important that children consume enough of this food group.
There are 2 types of carbohydrates, simple (all that is sweet, like sugar, sweets, the molasses, honey, cakes) and complex (starches, pasta, bread, cereals such as rice, wheat, maize; tubers such as potatoes, sweet potatoes, cassava or goose).
It is normal that carbohydrates constitute the bulk of our diet.
Be careful not to abuse it simple carbohydrates generally provide no other nutrients. Processed fats such as cakes, chocolate milk, etc.. It is also harmful if consumed in excess.