Ketone drinks

Ketosis you can measure; benefits you mostly cannot.

Ketone ester drinks put ketones straight into your blood without fasting or a keto diet. Short answer: they do raise blood ketones — that is a measurement, and a meter will show it. Whether that improves endurance or recovery is unsettled: one early athlete study said yes, a later double-blind trial in cyclists found no clear benefit, and a review counted 3 positive, 10 null and 3 negative results.

How the evidence flows

Each claim (middle), the studies that tested it (left) — green found it, red found nothing — and the grade they add up to (right). Drawn from the same records as the grades below. Tap to open full size.

Ketone drinks (deltaG) · evidence checked 2026-10-28

What the research shows

Grades are calculated from the studies listed, by fixed rules.

Ketone drinks improve endurance and recoveryEarly evidence
An early study in elite athletes reported better endurance; a later double-blind trial in cyclists found no clear benefit on performance, recovery, sleep or thinking; and a review counted 3 positive, 10 null and 3 negative results. The evidence points nowhere yet.
deltaG gets you into ketosis “over 2mM, or your money back” — and optimizes health, performance and recoveryNo real evidence
The ad said
“Achieve Ketosis over 2mM, or your money back. Optimize your health. Optimize your performance. Optimize your recovery.”
deltaG · Facebook ad, seen Oct 2026
Ketone esters do raise blood ketones — that is what they are made to do, and a meter can check it. Raised ketones are a measurement, not a benefit: the trials above did not find a consistent performance or recovery gain.