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  4. Post Bran Flakes

Post Bran Flakes has 328 kcal and 18.3 g fiber per 100 g. That fiber provides a caloric discount: roughly 2 kcal/g instead of 4. Each additional 15 g fiber per day is linked to 5–10% lower all-cause mortality (Reynolds et al., Lancet 2019). A 40 g serving provides 7 g toward that target.

About this food

How should I track Post Bran Flakes?

Post Bran Flakes is high in iron. The key to tracking Post Bran Flakes 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: 10% Protein, 85% Carbs, 5% FatCarbs85%
Protein10%9.9g
Carbs85%80.5g
Fat5%2.1g

Nutrition Facts

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

Energy
  • Calories
    328kcal—
Macronutrients
  • Protein
    9.9g20%
  • Carbohydrates
    80.5g—
  • Fat
    2.1g—
  • Fiberathlete
    18.3g65%
  • Sugar
    18.6g—
  • Saturated Fat
    0.4g—
Minerals
  • Sodium
    540mg—
  • Calciumathlete
    44mg3%
  • Ironathlete
    28mg156%
Vitamins
  • Vitamin Dathlete
    3.3mcg16%

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

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Post Bran Flakes — values for 100g

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Primary macros

Calories
328
kcal
Protein
9.9
g
Carbs
80.5
g
Fat
2.1
g

More nutrients

Fiber
18.3g
Sugar
18.6g
Sat. Fat
0.4g
Sodium
540mg
Calcium
44mg
Iron
28mg
Potassium
533mg
Magnesium
229mg
Zinc
5mg
Vitamin D
3.3mcg
Nutrient highlights
High in IronHigh in FiberHigh in MagnesiumHigh in ZincGood Source of Vitamin DGood Source of Potassium

Frequently Asked Questions

Post Bran Flakes is high in iron. The key to tracking Post Bran Flakes 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.

Post Bran Flakes contains 9.9g protein per 100g, which is lower in protein. A 100g serving provides 9.9g protein.

Notable nutrients in Post Bran Flakes include Iron, Fiber and Magnesium. Per 100g: 9.9g protein, 80.5g carbs, and 2.1g fat.

Post Bran Flakes contains 328 kcal per 100g, making it more calorie-dense. For weight loss, control portion sizes and fit it within your daily calorie targets.

Post Bran Flakes is not ideal for a keto diet. At 62.2g net carbs per 100g, a single serving could easily exceed the daily 20-50g net carb limit.

Post Bran Flakes provides 328 kcal, 9.9g protein, 80.5g carbs, and 2.1g fat per 100g. Compare with other grains & cereals foods in our database to find the best option for your nutritional goals.

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Grains & Cereals

Post Bran Flakes

Macros per 100g

328
Calories
Protein9.9g
Fat2.1g
Carbs80.5g
Article research basis
1,316Papers Analyzed
4,659Foods in Database
100%Peer-Reviewed Sources
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Reviewed by Calibr8

Peer-reviewed data · Last updated March 23, 2026

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