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Eat to satiety, lose liver fat - the low-fat vegan diabetes trial
14th October 2026
Twenty-five adults with type 2 diabetes followed a low-fat vegan diet for 16 weeks, eating as much as they wanted with no calorie counting. They lost about 6 kg on average, liver fat fell by about a third, visceral fat shrank, and measures of insulin sensitivity and beta-cell function improved.
Key takeaways:
- No calorie target was set, yet reported intake fell by roughly 346 calories a day as fat intake dropped sharply and fibre nearly doubled
- Among the 16 participants on metformin who finished the trial, five lowered their dose and two stopped it; nobody needed more glucose-lowering medication
- Some lean mass was lost alongside fat mass - the open question the researchers flag for future trials
Hype check: Proven - measured liver, visceral and muscle fat and insulin markers in a 16-week human trial. Promising - durability beyond 16 weeks and lean-mass protection. Marketing - any claim this replaces medication; the sample was small (25 starters, 24 finishers), single-arm in design as reported, and people on insulin or weight-loss drugs were excluded.
Why it matters - Type 2 diabetes is one of the clearest accelerators of unhealthy ageing. A dietary pattern that improves its core drivers without portion control is a practical, testable lever - and a useful counterpoint to drug-first framing.