Researchers have identified “a gene linked to thinness that may play a role in resisting weight gain in these metabolically healthy, thin people”.

The scientists found that thin people have a variant of what’s known as the ALK gene.

It’s this variant of the gene that facilitates a resistance to weight gain, no matter what diet you’re on, a finding suggested by follow-up experiments with mice and flies.

The researchers say therapeutics targeting the gene might help scientists fight obesity in the future.

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