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  1. Oats

Oats has 389 kcal and 10.6 g fiber per 100 g dry. Oat soluble fiber is a soluble fiber that reduces LDL levels: a meta-analysis found 3+ g/day lowers LDL by 0.25 mmol/L (Ho et al., Am J Clin Nutr 2014). Cooking triples the weight, so 40 g dry becomes about 120 g cooked at ~55 kcal. Weigh dry for accuracy.

About this food

How should I track Oats?

Oats is high in magnesium. The key to tracking Oats is knowing whether you are logging dry or cooked weight. Grains absorb 2–3 times their weight in water during cooking, so 80 g of dry rice becomes about 200 g cooked. Mixing up dry and cooked values can throw your calorie count off by 200–300%. A meta-analysis (Reynolds et al., Lancet 2019) linked higher whole grain intake to reduced mortality — but only accurate tracking captures the real intake. Weigh on a kitchen scale before cooking and use the matching nutrition values.

Macro Breakdown

Macro Split: 17% Protein, 67% Carbs, 16% FatMacro Split100%
Protein17%16.9g
Carbs67%66.3g
Fat16%6.9g

Nutrition Facts

Per 100g. Percentages reflect Daily Value (DV).

Energy
  • Calories
    389kcal—
Macronutrients
  • Protein
    16.9g34%
  • Carbohydrates
    66.3g—
  • Fat
    6.9g—
  • Fiberathlete
    10.6g38%
  • Sugar
    0.0g—
  • Saturated Fat
    1.2g—
Minerals
  • Sodium
    2mg—
  • Calciumathlete
    54mg4%
  • Ironathlete
    5mg26%
Vitamins
  • Vitamin Dathlete
    0.0mcg0%

% Daily Value based on FDA 2,000 kcal reference diet. Strength trainees have different needs — see highlighted nutrients.

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Oats — values for 100g

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Primary macros

Calories
389
kcal
Protein
16.9
g
Carbs
66.3
g
Fat
6.9
g

More nutrients

Fiber
10.6g
Sugar
0.0g
Sat. Fat
1.2g
Sodium
2mg
Calcium
54mg
Iron
5mg
Potassium
429mg
Magnesium
177mg
Zinc
4mg
Vitamin D
0.0mcg
Nutrient highlights
High in MagnesiumHigh in FiberHigh in ZincHigh in IronGood Source of Protein

Frequently Asked Questions

Oats is high in magnesium. The key to tracking Oats is knowing whether you are logging dry or cooked weight. Grains absorb 2–3 times their weight in water during cooking, so 80 g of dry rice becomes about 200 g cooked. Mixing up dry and cooked values can throw your calorie count off by 200–300%. A meta-analysis (Reynolds et al., Lancet 2019) linked higher whole grain intake to reduced mortality — but only accurate tracking captures the real intake. Weigh on a kitchen scale before cooking and use the matching nutrition values.

Oats contains 16.9g protein per 100g, which is a good source of protein. A 100g serving provides 16.9g protein.

Notable nutrients in Oats include Magnesium, Fiber and Zinc. Per 100g: 16.9g protein, 66.3g carbs, and 6.9g fat.

Oats contains 389 kcal per 100g, making it more calorie-dense. For weight loss, control portion sizes and fit it within your daily calorie targets.

Oats is not ideal for a keto diet. At 55.7g net carbs per 100g, a single serving could easily exceed the daily 20-50g net carb limit.

Oats provides 389 kcal, 16.9g protein, 66.3g carbs, and 6.9g fat per 100g. Compare with other grains & cereals foods in our database to find the best option for your nutritional goals.

Track this food

100g(Standard)
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Evidence-based. Peer-reviewed. Adapted to you.

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Grains & Cereals

Oats

Macros per 100g

389
Calories
Protein16.9g
Fat6.9g
Carbs66.3g
Article research basis
1,316Papers Analyzed
4,705Foods in Database
100%Peer-Reviewed Sources
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Reviewed by Calibr8

Peer-reviewed data · Last updated March 19, 2026

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Potassium
429mg9%
  • Magnesiumathlete
    177mg42%
  • Zincathlete
    4mg36%
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