I am currently on a mass gain diet because my BMI is quite low and I would like to gain some weight. It is recommended to eat at least 2500 to 3000 kcal/day. Although I’ve been working on this for several weeks, the result on the scales is disappointing.
Are the calories I take in all absorbed in the intestine? Surely those 1000 extra kcal can’t just go up in smoke?
Answer
I wouldn’t think primarily of the possibility that the body wouldn’t absorb the extra calories. For example, we could digest about 10 times more fat than we normally eat.
It is known that the body responds to increased energy intake by expending more energy. This is individual dependent. On average, the increase in energy consumption is greater in lean people than in obese people, which means that obese people gain more weight than lean people at the same increased energy intake.
It is also the case that a number of nutrients that provide energy can produce heat but do not lead to weight gain or to a lesser extent. Fish oil, for example, would have this property.
Answered by
prof. Dr. armand christophe
http://www.ugent.be
.