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Miso

Miso is low risk in a normal serving and a good everyday choice for most people with gout. A typical 18 g serving has about 10 mg of purines, about 3% of a ~400 mg working daily target.

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

How much can I eat?

Units
This serving
1 tbsp
18 g
Purine / serving
10 mg
% daily purine
3%
Purines in this serving
0 mg~400 mg daily limit
1 tbsp½ cup

Even a large serving stays well under a day's purines.

These are plant purines, which research links far more weakly to flares: the 10 mg here counts as roughly 3 mg toward your gout risk.

Miso is an easy choice to keep on hand.

Find Miso on Amazon

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Buying it packaged? GoutMarket, GoutSafe's sister site, grades 4 store-bought products of this kind from their ingredient labels, using this page's purine data.

Compare the 4 on GoutMarket
Why grade A: per 100 g and processing

Per 100 g (for comparison)

Purines
56.1 mg/100g
LowModerateHighVery high

Moderate for gout (50–150 mg/100g).

Fructose
6 g/100g
LowModerateHighVery high

Moderate for gout (3–8 g/100g).

Processing: NOVA 3 of 4 (processed food). How processing affects the grade.

These are plant purines. Research links purines from vegetables, legumes, and mushrooms far more weakly to gout flares than purines from meat and seafood, so the per-100g figure overstates the real risk here.

Good to know: FRUCTOSE CONTEXT: Value of 6.0g/100g applies to WHITE/SWEET MISO (shiro miso). The koji process in white miso produces significant residual sugars (short fermentation, high rice content). RED MISO (aka miso) has substantially lower fructose (~1-2g/100g) due to longer fermentation consuming more sugars. MIXED MISO is intermediate. For gout patients, red or mixed miso is the lower-fructose choice. This entry should be treated as white miso. Source: USDA SR Legacy and standard Japanese food composition tables.
Diet is part of the picture, not all of it

For most people the body makes the majority of its own uric acid. Food contributes the smaller share. Eating well lowers your risk and helps you feel in control, but for many people diet alone does not bring uric acid down enough to stop flares. Medication often does the heavy lifting. Use these grades to make easier daily choices, and work with your doctor on the full plan.

How did miso go for you?

Reader experiences, not medical advice. The grade above comes from published data.

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