The experts conducted a study involving 39 people who ate 750 extra calories every day.

Scientists had volunteers to increase the weight by 3%.
Thus, 50% of participants consumed fats, polyunsaturated oils in the composition, other participants used the saturated fats in the composition of oil palm.

No other differences were observed in the diet.
State health volunteers was monitored by MRI. All volunteers gained weight almost the same.

However, those who ate saturated fat, having fatty deposits in the liver and abdomen. These same participants differed very little muscle mass.

Polyunsaturated fats helped participants to reduce the risk of diabetes and heart disease.

Thus, such a diet is required for older people with muscle loss, metabolic syndrome.

The experts also noted that saturated fats activate genes of fatty tissue, increased the amount of fat, acting on the regulation of insulin.
Polyunsaturated fats are activated genes that are responsible for the reduction of fat deposits, improving the exchange of sugar.