First of all - food should be fresh. While storage dietetic qualities are inevitably worsened. Don’t keep cooked food for a long

First of all - food should be fresh. While storage dietetic qualities are inevitably worsened. Don’t keep cooked food for a long. Processes of fermentation and putrefaction start in it. It’s better to eat food right after cooking. Of course, less chips, fast food and canned food.
 
Secondly, your allowance should definitely contain raw vegetables and fruits. Raw fruits and vegetables contain infusive force, they keep much more vitamins and microelements, than boiled ones. Raw vegetables and fruits increase speed of metabolic processes. Overweight people, phlegmatic persons, disposed to depressions should necessarily include raw vegetables and fruits in their diet, this way they can increase speed of metabolic processes. People with heightened excitability should better eat vegetables and fruits, cooked on steam or in an oven.
 
Thirdly - nutrition should be varied and balanced.
 
The more various products we include in our diet, the more biologically active substances our organism receives. Proteins, fats and carbohydrates are necessary for normal vital functions of organism. Dietitian recommends their composition in percent while some problems. A healthy man’s diet should have such composition: 15-20% - proteins; 30% - fats and up to 55% - carbohydrates.
 
Fourthly - You cannot eat one dish or product for a long. You need to alternate them.
 
Fifthly - seasonality of nutrition. In spring and summer you need to increase quantity of vegetable food. In winter, to the contrary, organism needs products, rich in proteins and fats.  
 
Sixthly - restriction in nutrition. Weight gain always develops on the background of energy imbalance, so, if you want to lose weight, you need to restrict your diet’s caloric value. Besides, overeating reduces capacity for work and causes tiredness.  
 
Seventh - we should receive maximum pleasure from food. First of all, during a meal you should not hurry, talk about something bad, be nervous, read.  
 
Eighth - certain combination of products. You cannot eat incompatible dishes, and this is an obligatory rule. While unfavorable food combination in intestines, processes of food fermentation and putrefaction are activated, and organism accumulates slags and toxins. It is discovered that about 90% of people after 40 suffer from drum belly, heartburn, bitter taste in mouth, constipations etc., so we all need to think about change of nutrition character.  
 
Conclusion: mono diets are good only for certain (rather short) period of time and necessarily with vitaminic, micro- and macroelement support, which your doctor chooses for you. And right, balanced nutrition, like way of living - is various, fresh food in moderate quantities, eaten with pleasure.