Think you’re destined for type 2 diabetes because it runs in the family? Think again.
A new study published in the Journal of Clinical Endocrinology & Metabolism reveals that lifestyle choices can outweigh even a high genetic risk for type 2 diabetes. The research shows that modifying your diet and increasing exercise significantly reduces your likelihood of developing the condition, regardless of your genetic makeup.
Here’s what this means for you—and how science proves genetics isn’t your fate.
What does the study tell us?
Researchers explored the link between genetic risk for type 2 diabetes and the impact of lifestyle factors on disease development. They found that individuals with a higher genetic predisposition weren’t necessarily destined to develop diabetes. Those who maintained healthy habits—such as regular exercise, a nutritious diet and weight management—saw substantial reductions in their risk, even when their genes suggested otherwise.
Why genetics aren’t the whole story
While your genes play a role in how your body handles blood sugar and insulin, they don’t seal your fate. Think of it like a deck of cards: genetics might deal you a hand, but how you play those cards is up to you.
Genetic factors can influence insulin resistance, fat storage and glucose metabolism in type 2 diabetes. However, studies like this show that healthy behaviours can reduce those risks.
Why insulin sensitivity is a big deal
Insulin sensitivity refers to how well your cells respond to insulin—a hormone that helps transport glucose from your blood into your cells for energy. When sensitivity is high, this process works smoothly, keeping blood sugar levels balanced. But when sensitivity is low (a condition called insulin resistance), blood sugar builds up in your bloodstream, increasing your risk of type 2 diabetes.
Carbohydrates like bread, pasta and cereals convert to glucose in our blood, causing our blood glucose to rise. You can improve your insulin sensitivity through a low carb diet that can reduce strain on the pancreas, stabilise blood sugar and lower overall risk.
Backed by more evidence
This isn’t just one study's opinion. There’s a growing body of research showing that low carb diets, in particular, can reduce the risk of developing type 2 diabetes. A study from Tulane University found that a low carbohydrate diet can help individuals at risk for diabetes lower their blood sugar levels, highlighting the potential benefits of reducing carbohydrate intake to manage glucose levels and prevent type 2 diabetes.
These studies and many others show that while your genes may increase your risk, they are far from your fate. The evidence is clear: making strategic lifestyle changes—such as adopting a low carb diet—can significantly reduce your risk of developing type 2 diabetes, even if you are genetically predisposed.
What can you do now?
The JCEM study reinforces that your daily choices matter. Here are simple steps to get started:
- Reduce your carb intake: A low carb way of eating can help stabilise blood sugar and improve insulin sensitivity.
- Move more: Exercise helps your muscles use glucose more efficiently, reducing insulin resistance.
- Manage your weight: Losing even 5–10% of your body weight can significantly lower your risk.
The bottom line
Your genetics might increase your risk for type 2 diabetes, but they’re not the final word. The latest research proves that lifestyle changes—like a low carb diet—can take you from “high risk” to “in control.”
