Is obesity really in your genes?

             Written by: Sneha Jajoo

9 September 2025

Obesity has more than one cause. Lifestyle matters—but your genes also play a big role. Let’s see how.

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According to the Twin study, it shows that a lot of your body weight is influenced by your genes. 

Genes Matter—A Lot

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Obesity isn't caused by just one gene. There are hundreds—sometimes over 500 genetic variants—that gradually increase risk.

Many Genes Are Involved

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Even with genetic risk, lifestyle factors—like food habits, exercise, sleep, and stress—still shape the outcomes.

Lifestyle Still Matters

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Understanding your genetic risk can help—but the best approach still includes healthy eating, movement, and sleep habits.

What It Means for You

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Obesity isn’t about blame—it’s a mix of biology and lifestyle. Knowing your genetic risk can empower you to make healthier choices.

Final Note

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