Physical activity

The CDC's Diabetes Prevention Program research links at least 150 minutes of moderate physical activity per week to a lower risk — this benchmark also appears in general WHO recommendations on diabetes prevention. One study cited by Wikipedia found a link between more than 90 minutes of daily activity and roughly a 28% reduction in diabetes risk — that's a higher level of activity than the 150 min/week benchmark, and it's best treated as one data point rather than a single definitive number.

Body weight

Maintaining a healthy body weight is a factor consistently mentioned across all major sources. In the Diabetes Prevention Program study, a modest weight loss of 5–7% combined with increased physical activity was associated with a 58% reduction in new type 2 diabetes cases among participants (and 71% among participants over 60).

Dietary patterns

  • a diet favoring whole grains and fiber is generally associated with lower risk;
  • replacing saturated and trans fats with polyunsaturated fats (nuts, plant oils, fish) is linked to lower risk;
  • limiting sugary drinks and red/processed meat is commonly cited as a risk-reducing factor;
  • the WHO's general guidance describes this as "avoiding excess sugar and saturated fat" as part of a balanced diet.

Other factors

Quitting smoking is associated with a lower risk of diabetes and its complications. The literature describes the progression from prediabetes to type 2 diabetes as something that can be slowed or even halted through lifestyle changes (weight loss, diet, activity), and, in a clinical context, also with medications that improve insulin sensitivity; this is mentioned purely for informational purposes, not as advice for self-directed use.

What about type 1 diabetes?

All the sources reviewed agree: there is currently no known way to prevent type 1 diabetes. Prevention guidance in the literature applies specifically to type 2 diabetes and, separately, to slowing the progression from prediabetes to type 2.

This article summarizes findings from scientific research and is not a personal action plan. Only a doctor can assess your risk and recommend an approach that's right for you.