How many Oysters can I eat with gout?

A typical serving is about 113 g, which delivers 138 mg of purines, or about 35% of a ~400 mg working daily target. Stick to one normal portion and skip seconds, especially during a flare.

Are Oysters high in purines?

Oysters are moderate in purines by weight: about 122 mg per 100 g. A typical 113 g serving works out to about 138 mg, or about 35% of a ~400 mg working daily target.

Do Oysters cause gout?

No single food causes gout; it develops from high uric acid over time. Oysters are graded C: a normal portion is fine, but they count against your daily total, so it is the second helping and the frequency that matter.

Oysters

Also listed as: Oysters, raw

Oysters are fine in moderation. Watch your portion size, especially during a flare. A typical 113 g serving has about 138 mg of purines, about 35% of a ~400 mg working daily target.

General information, not a substitute for advice from your doctor or dietitian.

Across forms of oysters:C· 121–138 mg per serving

How much can I eat?

Units

A typical serving is about 113 g, which delivers 138 mg of purines, or about 35% of a ~400 mg working daily target.

This serving

4 oz

113 g

Purine / serving

138 mg

% daily purine

35%

Purines in this serving138 mg · 35% of a day

0 mg~400 mg daily limit

Adjust the serving

1 oz12 oz

You could have up to about 6 oz (165 g) before this reaches half a ~400 mg working daily purine target.

Oysters fit in moderation, so portion is the thing to get right.

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Why grade C

Fine in moderation. Mind your portion size, especially during a flare.

Per 100 g (for comparison)

Purines High confidence

122 mg/100g

LowModerateHighVery high

Moderate for gout (50–150 mg/100g).

Fructose High confidence

0 g/100g

LowModerateHighVery high

Low for gout (< 3 g/100g).

Processing: NOVA 1 of 4 (unprocessed or minimally processed). How processing affects the grade.

Eating oysters as part of a bigger dish? The Dish Decoder grades the whole plate, ingredient by ingredient.

Grade a dish or browse every food rating

Sources

1. Purine data: USDA Purine Database 2025 - Table 2 (International) Evidence tier: Peer-reviewed literature Replication: 4 samples International literature sources
2. Fructose data: Biochemical Certainty (fructose = 0) Evidence tier: Lab-verified Animal products (meat, seafood, eggs, plain dairy) contain no fructose by biochemical composition.

Values are per 100g unless a note says otherwise, rounded to three significant figures; per-serving figures are calculated from the unrounded measurement, so recomputing from the rounded number can differ by a milligram or so. A single determination is normal in food composition tables, not a defect. Last reviewed July 18, 2026.

How we grade foods

Grades combine purine and fructose data with known gout triggers and benefits. We show our confidence on every food.

Other forms of oysters

This is the most common form of "oysters". Pick a specific form below if you mean one in particular.

Canned Oysters

Purine 107 mg Fructose 0 g per 100 g

Moderate Shellfish & Seafood

Oysters

How much can I eat?

Why grade C

Other forms of oysters

Canned Oysters

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