Metabolic rates vary among people, even when they are newborns. In other words, some people are born with a faster metabolism than others.

Although genetics may contribute to these differences, scientists don’t agree on the extent to which they affect metabolic rate, weight gain, and obesity.

Interestingly, most studies show that obese people have a higher total and resting metabolic rate, compared to normal-weight individuals.

Researchers have pointed out that this is because obese people have greater amounts of muscle to help support the extra weight.

Yet, studies indicate that obese people have higher metabolic rates, irrespective of the amount of muscle mass they have.

In contrast, other studies show that formerly obese people have a 3–8% lower metabolic rate, on average, than those who have never been obese.

One thing is clear – not everyone is created equal when it comes to metabolic rate.

Most of this variation is due to people’s age, as well as their environment and behavior. However, the role of genetics in these individual differences needs to be studied further.

Brief Summary:

Metabolic rates vary by individual, even among infants. However, it is unclear how much of this variation is due to genetics.

Sources & References:
ajcn.nutrition.org
www.ncbi.nlm.nih.gov
www.ncbi.nlm.nih.gov/pmc/
www.ncbi.nlm.nih.gov/pmc/articles
ajcn.nutrition.org/content/63
healthline.com

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Metabolic rates vary among people, even when they are newborns. In other words, some people are born with a faster metabolism than others. Although genetics may contribute to these differences, scientists don’t agree on the extent to which they affect metabolic rate, weight gain, and obesity. Interestingly, most studies show that...
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