Keto Diet vs Metformin for blood sugar
Short answer: For blood sugar, more users report improvement with Keto Diet — 100% of 5 reports, versus 95% of 20 for Metformin.
Metformin has 1,367 meta-analyses and 3,450 randomized trials on PubMed; the other has not been graded.
Based on 130 reports about Keto Diet and 157 about Metformin. Not medical advice.
| Keto Diet Lifestyle | Metformin Medication | |
|---|---|---|
| User score | 66 | 43 |
| Verdict | Mostly positive | Mixed |
| Positive of reports that state an outcome | 72% | 29% |
| Reports | 130 | 157 |
| Research | Research pending | AResearch: Strong |
| Meta-analyses / RCTs | — | 1,367 / 3,450 |
| Mainly used for | ||
| Weight loss % reporting improvement | 91% (11) | 90% (10) |
| Appetite % reporting improvement | 67% (3) | 100% (2) |
| Focus % reporting improvement | 93% (27) | 67% (3) |
| Energy % reporting improvement | 83% (29) | 40% (10) |
| Sleep % reporting improvement | 100% (3) | 100% (2) |
| Anxiety % reporting improvement | 80% (5) | — |
| Mood % reporting improvement | 85% (20) | 50% (2) |
| Memory % reporting improvement | 100% (3) | 100% (2) |
| Performance % reporting improvement | — | 0% (15) |
| Recovery % reporting improvement | 100% (2) | — |
| Pain & inflammation % reporting improvement | 67% (3) | — |
| Digestion % reporting improvement | — | 29% (7) |
| Libido % reporting improvement | 100% (2) | — |
| Hormones % reporting improvement | 100% (2) | 40% (5) |
| Blood sugar % reporting improvement | 100% (5) | 95% (20) |
| Skin & hair % reporting improvement | 100% (4) | — |
| Immunity % reporting improvement | 100% (2) | — |
| Longevity % reporting improvement | — | 100% (8) |
| Common side effects | nerve issues, brain fog, fatigue | stomach issues, diarrhea, b12 depletion, nausea |
| Typical dose reported | 7 weeks | 250-1500 mg / daily |
Keto DietFull Keto Diet profile →
What a user said
“Keto has been a life changer for me. It has significantly helped with brain fog, energy and stamina.”
MetforminFull Metformin profile →
Latest review conclusion
The choice of metformin or COCP treatment should be based on symptoms, noting some biochemical benefits from combination treatment targeting both major endocrine disturbances seen in PCOS (hyperinsulinemia and hyperandrogenism).
J Clin Endocrinol Metab, 2024 ↗What a user said
“Metformin currently has enough data for me personally to feel comfortable not only taking it myself (and my wife), but also recommending it to my patients.”
Related comparisons
Percentages come from first-hand user reports and are not clinical outcomes. Talk to a doctor before starting, stopping or combining anything. How we rate