Calorie data · Protein← All foods

How many calories in
oysters?

At 81 calories per 100g, oysters delivers 9g of protein and 2.3g of fat. Macros are balanced relative to other protein sources. A typical 4 oz portion lands around 92 calories.

81
kcal · 100g
9g
Protein
4.7g
Carbs
2.3g
Fat
Servings

Common serving sizes.

Calories scale with portion. Here's how a typical oysters serving translates in your tracker:

Serving
Calories
Protein
3 oz (85g)
69 kcal
7.7g
4 oz (113g)
92 kcal
10.2g
1 cup (~150g)
122 kcal
13.6g
Track this food

Skip the lookup. Snap the plate.

Point your iPhone camera at oysters and SpotWell's on-device AI estimates the portion and macros in under a second — no manual entry, no barcode hunting.

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FAQ

Quick answers.

How many calories in oysters?

Oysters has approximately 81 calories per 100g. A typical serving — 3 oz (85g) — comes in at 69 calories.

How much protein is in oysters?

9g of protein per 100g. That puts oysters at roughly 11.1g of protein per 100 calories — a useful lens when comparing to other protein sources.

How do I log oysters accurately?

The simplest method: weigh it on a kitchen scale, then enter grams in your tracker. With SpotWell, you can skip the scale — point the camera at the plate and the AI estimates the portion in under a second. Adjust the value if it looks off.

Is oysters good for weight loss?

It depends on your overall calorie target. Oysters is naturally low-calorie at 81 kcal per 100g, so it's easy to fit into a deficit.