The case for lifestyle change just got longer-term evidence. Per the NIH's June 15, 2026 announcement, adults with prediabetes who took part in an intensive lifestyle intervention — diet change and physical activity aimed at modest weight loss — developed multiple chronic conditions at a roughly 25% lower rate over long-term follow-up than those who did not, in results from the Diabetes Prevention Program (DPP) outcomes study published in JAMA.
Top Health & Beauty publishes information, not medical advice. If you have prediabetes or any chronic condition, decisions about metformin, weight-loss programs, or exercise plans belong in a conversation with your clinician.
What did the study actually test?
The DPP enrolled adults with prediabetes and, per NIH, compared an intensive lifestyle intervention against metformin and a placebo group. Earlier DPP results, per NIH, found the lifestyle program reduced progression to type 2 diabetes by about 58%, roughly twice the effect seen with metformin — about 31%. The new JAMA analysis asked a broader question: did the interventions also reduce multimorbidity, meaning the accumulation of several chronic conditions at once, over roughly two decades of follow-up?
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What did the new analysis find?
Per NIH, people in the lifestyle arm developed multiple chronic conditions at a significantly lower rate — roughly 25% lower risk — than the comparison groups. The metformin group also showed benefit, though the lifestyle result was the standout in the announcement. Two cautions worth naming, because the study population was a research cohort with prediabetes, not the general public, and the intervention was intensive and supervised — more structured than a typical self-directed diet.
What this changes for readers
If a clinician has told you that you have prediabetes, this is the strongest signal yet that the work of changing diet and activity pays off beyond avoiding diabetes itself, per NIH. The DPP's lifestyle targets, as described by NIH, were specific: modest weight loss and regular physical activity, delivered with coaching and accountability. Asking your care team about a structured program modeled on that approach — many diabetes-education programs use it — is a concrete next step. It is not a license to skip prescribed medication; the metformin arm showed benefit too.
The bottom line
Per NIH's June 15, 2026 announcement of results published in JAMA, an intensive diet-and-activity program for adults with prediabetes cut the long-term risk of developing multiple chronic conditions by roughly 25%, building on earlier DPP findings of a 58% reduction in progression to type 2 diabetes. If prediabetes is on your chart, ask your clinician about structured lifestyle programs — the evidence behind them now spans two decades.