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Milk and Gout: Does Dairy Increase Uric Acid or Protect Against Flares?

Milk and dairy products are low in purines and do not trigger gout flares. In fact, evidence suggests they may lower uric acid and reduce gout risk.

Why Milk Is Different

  • Purine content: Milk has negligible purines (vs. organ meats, anchovies, yeast).
  • Casein and lactalbumin: Milk proteins promote uric acid excretion (uricosuric effect) by inhibiting renal reabsorption (URAT1 transporter).
  • Calcium: May reduce urate crystal formation.
  • Orotic acid: In milk, enhances renal urate clearance.

Evidence Summary

  • Prospective cohorts (Health Professionals, Nurses' Health): Low-fat dairy intake associated with 30–50% lower gout incidence.
  • Interventional studies: Milk supplementation lowers serum urate by 0.2–0.5 mg/dL.
  • Mendelian randomization: Genetic proxies for dairy intake support causal urate-lowering effect.

Practical Recommendations

  • Include low-fat dairy: 2–3 servings/day (milk, yogurt, cheese) as part of DASH/Mediterranean diet.
  • Prefer low-fat over full-fat for cardiovascular health; urate benefit similar.
  • Yogurt with live cultures may add gut microbiome benefit.
  • Lactose intolerant? Lactose-free milk, hard cheeses (low lactose), or fortified plant milks (check protein content).

When to Be Cautious

  • Individual triggers vary – some patients report flares with specific foods despite population data.
  • High-fructose dairy (sweetened yogurts, flavored milk) – fructose raises urate.
  • Advanced CKD – potassium/phosphorus in dairy may need restriction (nephrologist guidance).

Gout Management Pillars

  1. Urate-lowering therapy (allopurinol, febuxostat) to target <6 mg/dL (<5 if tophi).
  2. Anti-inflammatory prophylaxis during ULT initiation (colchicine, NSAID, prednisone).
  3. Lifestyle: Limit alcohol (especially beer), fructose-sweetened beverages, high-purine meats/seafood. Hydrate. Maintain healthy weight.
  4. Dairy fits in the protective column.

Don't avoid milk for gout – it's one of the few dietary factors with consistent protective evidence.

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