Taste and Weight. Why They Don't Go Along

 
Practically any weight lost for the price of tremendouse efforts comes back when the efforts stop. In animals, body weight returns to a certain level where it remains stable after any disturbances: increased physical activity, a decrease in physical activity, etc. -- after anything forceful is cancelled and say, a rat is left alone with a free access to food. This is what makes researchers think that "set point" for body weight is a real thing.

Now look at the lower set of curves. Each curve is for rat bodyweight plateaus. It seems that body-weight set point is not stone carved. More palatable foods make the set point shift up, the tastier the higher. Foods with negative palatability do the opposite, the bitterer the lower.

What is known from experimental and clinical studies

Taste and Eating

There are multiple links between taste perceptions, taste preferences, food preferences, and food choices and the amount of food we eat The "set point" for the body weight seems to be determined by psychological factors Palatability elevates body-weight set point Particular sensory and nutrient combinations in foods can facilitate overeating But! Palatable food increased diet-induced thermogenesis and reduced food efficiency Palatable food causes excess energy expenditure Fat Preference Preference for high-fat foods appear to be a universal human trait Fat consumption appears to be determined simply by the amount of fat available Fats produce significantly more sensory positive feedback in the obese than in the lean But! Sensory properties of fat alone did not affect energy regulation

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