Maintaning a high metabolic rate has a significant influence on your mass and body composition. Unfortunately, we are often in the habit of taking actions that adversely affect the metabolism and encourage our organism to starts accumulation of calories we ate in a form of fat. It results in steady, regular gain of unwanted weight. With a view to a fight against obesity and overweight it is helpful to change your eating habits by eliminating those which contribute to metabolism slowdown in the greatest extent.
If you belong to the group of people who are "constantly on a diet", who eternally reduce calorie consumption, then bear it in mind that this is the easiest way to slow down your metabolism. Scientific studies show that within a few to a few dozens of days of eating restrictions energy expenditure considerably decreeses. It is connected, on the one hand, to so called after-meal thermogenesis and, on the other, to adaptive thermogenesis. After some time overmuch reduction in the level of energy economy regulation hormones takes place, such as leptin and thyroid hormones, which results in metabolism speed drops to very low levels. As you might have guessed, in such a situation, weight loss becomes very laborious.
Too low protein intake
The problem of too low protein intake primarily affects women and sometimes vegetarians and vegans. The effect of reduced protein consumption is not only the risk of loss of muscles but also increased appetite and metabolism slowdown. The latter effect is associated with lower thermogenesis (protein is the most thermogenic component of food, after its consumption your metabolism speeds up by even several times if compared to carbohydrates or fat consumption), and, on the other hand, with the loss of muscle tissue which makes a base for active fat burning. You really should not believe in theories saying that in order to lose weight you need to limit consumption of meat, eggs, fish and cheese, as this type of views can lead to serious nutritional errors resulting, among other things, in slower metabolism.
Significant consumption of highly processed foods
Highly processed food has many advantages: it is tasty, cheap, quick and simple in preparation and, above all, is readily available and usually has longer shelf life. Unfortunately, this type of products also have many disadvantages, the most important of which is its low nutritional density (that is, small non-energetic content of nutrients in relation to the delivered dose of energy), as well as presence of undesirable compounds such as preservatives, colouring agents and a variety of "fillers". Research showed that eating technologically processed food differently influences metabolic rate than eating low-processed products. In the case of the latter, the phenomenon of after-meal thermogenesis is considerable higher. This type of dependency has been observed by comparing physiological response of the body to consumption of white and wholemeal bread.
Too low carbohydrate intake
Although there is no doubt that low carbohydrate diet may be an effective way to combat overweight and obesity, it should be also remembered that sometimes it can affect the efficiency of your work over your perfect shape. This result is particularly visible among those who have practised it for a long time, as well as those very active with moderate or low level of fat percentage. The effect of too deep carbohydrate restriction may be excessive lowering of leptin level and imparied metabolism of thyroid hormones. Sometimes also decrease in the activity of androgens. Therefore, you ought to pay attention so that carbohydrate intake does not drop too low for the effects can be opposite of the intended.
You eat food contaminated with pesticides
Although this may be surprising, there are grounds to believe that high intake of food heavily contaminated with pesticides causes unprofitable changes in metabolism. In some studies a relationship between intake of pesticides with food and disorders of insulin-lipid and glucose management, excessive body weight and the risk of developing diabetes were traced. These are quite interesting and at the same time alarming data and if you take them into account, it becomes reasonable to choose organic products, grown in a way that does not include substantial exposure to pesticides and without using aggressive methods of plant protection.