Comparison guide
Ketone esters or ketone salts?
Both raise blood beta-hydroxybutyrate without a ketogenic diet, but esters push it to 2–5 mmol/L while salts typically reach only about 0.5–1.0 mmol/L. The bigger point is that neither has shown a reliable performance benefit, and some trials show impairment.
The options, compared
| Option | Evidence | Best for | The honest note | |
|---|---|---|---|---|
| Ketone Esters | Limited evidence | A big ketone rise, nothing more | They produce the larger ketone rise, but controlled trials show no overall performance benefit and one found impaired 20-minute time-trial performance in trained cyclists. They taste extremely unpleasant, cost more and commonly cause GI distress. | View |
| Ketone Salts (BHB) | Limited evidence | Not worth the money | A modest ketone rise bought with a heavy mineral load — a single serving can deliver over 1 g of sodium — plus a largely inactive D-BHB fraction. The acute drop in blood glucose is reproducible but has not translated into long-term benefit or fat loss. | View |
Our verdict
Neither is necessary on a normal diet, and neither replaces carbohydrate during competition. Esters are the only form that raises ketones substantially, but that has not turned into better performance; skip salts entirely if you have hypertension, heart failure or kidney disease. Anyone with type 1 diabetes should use neither without medical supervision.