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Homemade flapjacks are baked oat-based bars, usually made with added fat and sugar. These figures describe a homemade recipe; the nutrient content can vary with the ingredients used. They mainly provide carbohydrate and fat. Per 100g, they contain 62g of carbohydrate, including 35g of sugars, and 24g of fat, including 7.5g of saturated fat.

Carbohydrate and fat provide energy for the body. The sugar, fat and saturated fat content are worth noting for people monitoring their intake of these nutrients or their overall energy intake. Flapjacks also provide some fibre, which supports normal bowel function. Full nutrient figures are given in the tables below.

Nutrition per 100g

Nutrient

Per 100g

Energy

464 kcal

Energy

1946 kJ

Fat

24g

of which saturates

7.5g

Carbohydrate

62g

of which sugars

35g

Fibre

3.1g

Protein

4.4g

Salt

0.68g

Water

9.2g

Cholesterol

3.1mg

Vitamins and minerals per 100g

Nutrient

Per 100g

Vitamin C

0mg

Thiamin (B1)

0.3mg

Riboflavin (B2)

0.04mg

Niacin (B3)

0.3mg

Vitamin B6

0.1mg

Vitamin B12

Trace

Folate

6µg

Calcium

36mg

Iron

2.1mg

Magnesium

48mg

Phosphorus

152mg

Potassium

190mg

Sodium

271mg

Zinc

0.9mg

Copper

0.17mg

Selenium

1µg

Other types of flapjacks

Food

Calories per 100g

Protein per 100g

Fat per 100g

Fibre per 100g

Flapjacks, retail

434 kcal

5.1g

23g

5.2g

Flapjacks, retail, chocolate covered

441 kcal

5.3g

24g

5g

About these figures

Values are per 100g of the food as described (Recipe). "Trace" means only a very small amount was found. Nutrients that were not measured are not shown. Salt is calculated from sodium.

Further reading and references

  • Public Health England. McCance and Widdowson's The Composition of Foods Integrated Dataset 2021. GOV.UK.

Article history

The information on this page is written and peer reviewed by qualified clinicians.
  • 4 Nov 2026 | Latest version
  • 3 Nov 2026 | Originally published