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Jessie Inchauspé (Glucose Goddess)

Biochemist (MSc) · blood-sugar author

Her meal tactics hold up well: eating carbs last, vinegar before a meal, a post-meal walk, a savory (vs sweet) breakfast, mulberry-leaf extract, and the observation that glucose responses vary person-to-person all have real independent support — and high-glycemic diets genuinely do worsen acne. Where the evidence thins is her central health thesis: that normal-range spikes meaningfully harm metabolically HEALTHY people. Claims that spikes cause fatigue or brain fog in healthy people are insufficiently supported and the healthy-people inflammation claim is refuted outright; her assertion that fruit juice is glycemically equivalent to soda is refuted (the fruit matrix blunts the rise); and the accelerated-aging framing rests on diabetic and animal glycation data, not healthy-normal-range evidence. Her Anti-Spike supplement stays contested — the benefit rests on a single company-funded study, a direct conflict of interest. Net: a genuinely useful set of meal tactics, wrapped in health claims about healthy people that outrun the data.

Evidence vs. their claims

Across 15 testable claims, where the weight of independent evidence lands — on their side, or against them. Their own research network is excluded as evidence.

Read relative to their stance: when they dispute a claim and the evidence supports that claim, it counts as against them. Each row shows their stance, so you can see which way the evidence cuts.

Conflicts of interest

• Paid Dexcom Stelo CGM ambassador — directly benefits from the 'everyone should wear a CGM' message
• Sells the 'Anti-Spike Formula' supplement (own product); the marketed 'up to 40%' figure has no independent trial
• Paid Vichy/L'Oréal skincare ambassador — her 'glucose ages your skin' claims align with that partnership
• No peer-reviewed research in metabolic health; claims graded here on fully INDEPENDENT evidence

Stated factually. Conflicts do not by themselves make a claim wrong; they are context for weighing it.

Claim-by-claim (15)

Grouped by health topic. A person's claims often span several areas — here's where each one lands.

Educational only, not medical advice. Verdicts grade the evidence, not the person; see the methodology.