A useful question is not simply “Do potatoes work?” It is “Work for what, compared with what, and for how long?” Fullness after one meal and sustained changes in body weight are different outcomes.
What the satiety study measured
Holt and colleagues’ 1995 study compared 38 foods using equal-energy portions. Groups of 11–13 people rated fullness over two hours. Boiled potatoes produced the highest satiety index among the foods tested.
That supports interest in boiled potatoes as a filling food in that experimental setting. It does not prove that a potato-only diet produces lasting weight loss, or that its results apply to every potato preparation and every person.
Personal reports are a different kind of evidence
The Free The Animal article records a personal experiment. The author distinguishes an early scale drop from fat loss and estimates that much of it was water. His explanation and estimate should not be treated as measurements from a controlled study.
Look beyond the first few days
For a weight-management plan, useful questions include nutritional adequacy, adherence, health effects and what happens after the restrictive phase. We have not reviewed a controlled trial establishing those outcomes for the full potato-only approach.
The NHS’s general weight-management guidance recommends balanced eating, reduced energy intake and steady weight loss, typically around 0.5–1 kg per week. That is general guidance, not a test of the potato-only diet.
What we promise here
Clear explanations and source links. No guaranteed rate of weight loss, no claim that potatoes cure a health condition and no invented success stories.
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