The increasing number of people begins to think of the health. If the person wants to remain as long as possible in a tone, to be vigorous, to conduct active life, then one of the key moments is the absence at it excess weight. In attempts to keep or lose extra kilos, the people go on different diets or pass to low-calorie products. Energy value of various food, it is caloric content, depends on their chemical composition. All types of fats and digestible carbohydrates increase caloric content, and reduce – high content of cellulose and water.
Plant products
Caloric content of greens fluctuates from 0 to 50 kcal. Besides, it contains many phytonutrients, vitamins and minerals. The greatest effect gives consumption of fresh greens. Add it to salads, soups, garnishes. Vegetables also don't concede some greens in low-caloric content, besides, they are also vitamin-rich, minerals and cellulose. A sorrel, spinach, green onions, a celery, an asparagus, parsley, fennel, salad, a garden radish, cucumbers, tomatoes, squash, cabbage, a paprika, garlic, carrots, beet and onions – energy value of these products doesn't exceed 50 kilocalories on 100 grams. Therefore is them it is possible without restrictions.
Berries and fruit contain digestible carbohydrates, however it doesn't prevent them to have low energy value also. The quince, lemons, blackberry, cherry plum, cherry, watermelon, grapefruit, oranges, pomegranate, a wild strawberry, cowberry, pears, apples, a melon, a kiwi, raspberry, a gooseberry, sweet cherry, peaches, bilberry, persimmon, pineapples - their low caloric content is caused by high content in them of water or availability of cellulose in their structure. Some fruit, for example, avocado and a guava, contain also useful vegetable fats. It is the best of all to eat fruit in the morning, till a lunch, the carbohydrates which were so contained in them are spent quicker, but not laid in the form of excess fatty deposits. Nutritionists recommend to use them in the form of the first fresh breakfast or in the form of salads and smoothie.
Caloric content of berries entirely depends on amount of the carbohydrates which are contained in them, and, the berry is sourer, the it is less in it than calories. They, along with fruit, are vitamin-rich, and those that are painted in dark color, both antioxidants and polyphenols. Berries, likewise as well as fruit, it is necessary to use till a lunch. Flour products and grain can't be carried to low-calorie products. However when cooking grain lose more than a half of the energy value. Cereals contain so-called slow carbohydrates therefore it is the best of all to use them for dinner that they fed an organism during the evening and night. Millet cereal on water contains 90 kcal, and on milk – already nearly 140, in the same way and all other grain. Energy value of a bakery goods depends on a flour grade. The it is lower, the caloric content and vice versa is less.
Animal products
Without animal protein the good nutrition is simply impossible. Fish and seafood are rich with them. Caloric content of these products directly depends on their fat content. Therefore buying fish, give preference to dryish grades, such as hake or pollock. Can brag of the lowest caloric content a cod – 78 kcal, a pollock – 79 kcal, blue whiting, a hake, a tuna, a pike perch and a pike, a flounder – about 100 kcal, and here the humpback salmon contains 149 kcal. Seafood contains about 100 kcal on 100 grams of a product, except for mussels, their energy value of only 50 kcal. The sea cabbage is a champion on low-caloric content (only 5 kcal on 100 grams). The value of a dairy products also is in direct dependence on their fat content. However, this difference isn't too big. So, skim milk contains 31 kcal, and 3.2% of fat content – 58. Moreover, nutritionists don't advise to use a fat-free dairy products since it you deprive an organism of useful animal fats. From meat products kidneys have the lowest caloric content - it is 88-100 kcal. Then liver and heart. However these figures are fair only in relation to a beef and pork offal. Caloric content of chicken - is almost twice higher.