Does apple cider vinegar lower uric acid?

There is no high-quality randomised trial in humans showing it does. A rat study and one small human trial exist; no rheumatology guideline recommends it.

Does ACV make your blood alkaline?

No. Blood pH is tightly regulated regardless of diet. The 'alkaline ash' explanation commonly given for ACV and gout is not physiologically sound.

Is there any real benefit?

Indirectly, possibly. Vinegar has modest evidence for weight, cholesterol and blood sugar effects, and losing 5–10% of body weight does lower uric acid.

How should I take it safely?

Always diluted in water. Undiluted vinegar damages tooth enamel and can irritate the oesophagus.

Apple cider vinegar for gout: the honest answer

4 min read · Reviewed 2026-08-06 · Every claim cited

Coach Cherry looking sceptically at a bottle of apple cider vinegar

Two tablespoons in water, every morning. It is one of the most repeated pieces of gout advice online. Here is what actually holds up.

The short answer

No good evidence it treats gout. A plausible indirect benefit. Harmless if you dilute it. As of 2026 there are no high-quality randomised controlled trials testing apple cider vinegar on uric acid in people with hyperuricemia or gout, and no rheumatology guideline recommends it.

What the "it works" claims are built on

A rat study. Rats fed ACV for seven weeks had lower blood uric acid than controls, with acetic acid proposed as a xanthine oxidase inhibitor. Rodent results often fail to translate.
A small human trial in 60 women with elevated uric acid, comparing two ACV doses against a control.
A widely quoted "2020 double-blind trial" showing a significant urate drop after eight weeks. We could not verify this against a primary indexed publication — it circulates mainly on wellness blogs. Treat it sceptically until someone produces the paper.

The mechanism that is simply wrong

The most common explanation you will read is the "alkaline ash" theory — that ACV leaves an alkaline residue which dissolves uric acid crystals. This is not how the body works. Blood pH is tightly regulated within a narrow range regardless of what you eat or drink. If it were not, you would be in a hospital. Any page selling you ACV on this reasoning has not checked it.

The mechanism that is real

Vinegar has decent evidence for modest metabolic effects. Meta-analyses of randomised trials show it lowers total cholesterol, fasting glucose and HbA1c. One 12-week trial found 15–30 mL of vinegar daily reduced body weight, body fat percentage and waist circumference versus placebo.

That matters because weight loss genuinely lowers uric acid. Even a 5–10% reduction can cut flare frequency. So ACV may help — but through the same route as any other small metabolic improvement, not through anything gout-specific.

If you want to try it

It is cheap and low-risk, with two caveats. Always dilute it — undiluted vinegar erodes tooth enamel and irritates the oesophagus. And do not let it replace urate-lowering therapy; uncontrolled gout damages joints and kidneys over time, and no amount of vinegar changes that.

Common questions

Does apple cider vinegar lower uric acid?: There is no high-quality randomised trial in humans showing it does. A rat study and one small human trial exist; no rheumatology guideline recommends it.
Does ACV make your blood alkaline?: No. Blood pH is tightly regulated regardless of diet. The 'alkaline ash' explanation commonly given for ACV and gout is not physiologically sound.
Is there any real benefit?: Indirectly, possibly. Vinegar has modest evidence for weight, cholesterol and blood sugar effects, and losing 5–10% of body weight does lower uric acid.
How should I take it safely?: Always diluted in water. Undiluted vinegar damages tooth enamel and can irritate the oesophagus.