Supplement analysis backed by scientific evidence · PT

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Limited evidenceGeneral health

Succinic Acid

An intermediate of the Krebs cycle sold for energy, endurance and hangovers. Your mitochondria make it continuously; the case that swallowing more of it changes anything rests on a small and inconsistent set of studies, mostly from eastern Europe.

Evidence last reviewed: August 2026

What the science says

  • Exercise performance and recovery Limited evidence

    A 2026 systematic review of succinic acid as an ergogenic aid found only a small number of heterogeneous human studies with inconsistent designs and doses, and concluded the evidence does not support a clear performance benefit. Nothing here justifies the "cellular energy" marketing.

  • Menopausal symptoms Limited evidence

    A randomised, double-blind, placebo-controlled trial of an ammonium succinate-based supplement reported reduced climacteric symptoms. It is a single trial of a specific salt-plus-nutrient formulation, not replicated elsewhere.

  • Hangover relief Limited evidence

    Succinic acid appears in many hangover products on the theory that it speeds acetaldehyde clearance. No randomised trial has tested succinic acid against hangover symptoms in humans.

Dosage & safety

Studied doseProducts typically supply 50–500 mg per capsule; studies used a wide and inconsistent range with no dose-response established.
SafetyAn acid used as a food additive, generally regarded as safe at food levels. Higher doses can cause heartburn and stomach irritation, so it is a poor choice for anyone with reflux or ulcers. No data in pregnancy, breastfeeding or children, and no meaningful long-term safety data at supplement doses.

Scientific references

Where to buy

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