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Study Reveals Insulin's Impact on Genes Varies by Obesity

4/4/2026

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Summary

Story summary

A study finds insulin affects more than 200 genes in obese participants’ fat cells, but only two genes in non-obese participants.
This suggests that being fit and fat may not protect against diabetes or heart disease.
Dr. Samuel Klein notes the findings complicate the idea of 'healthy obesity' and calls for more research.
Further study is needed to understand implications for overall health.

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Story summary

A study finds insulin affects more than 200 genes in obese participants’ fat cells, but only two genes in non-obese participants.
This suggests that being fit and fat may not protect against diabetes or heart disease.
Dr. Samuel Klein notes the findings complicate the idea of 'healthy obesity' and calls for more research.
Further study is needed to understand implications for overall health.