Optifast

Packaged product Other Foods Nestle

Optifast contains 372 kcal per 100 g. A serving, 1 bar, 43 g (43 g) provides about 160 kcal.

Roughly 40% of its calories come from carbohydrates, with 38% from protein and 21% from fat (estimated with general energy factors).

That is more energy than the typical item in other foods on FoodFactly, where the median is 270 kcal per 100 g across 274,655 products.

100 g provides 70% of the Daily Value for Vitamin C, 59% of the Daily Value for selenium and 47% of the Daily Value for Vitamin B12.

The values are as declared on the product label and entered by Open Food Facts contributors.

Optifast by Nestle, product photo
Photo: Open Food Facts, CC BY-SA 3.0, Open Food Facts contributors
372kcal per 100 g
37.2 gprotein
39.5 gcarbohydrates
9.3 gfat
160kcal in serving, 1 bar, 43 g (43 g)

Nutrition facts

Nutrition facts for the selected amount
NutrientAmount per 100 g% DV
Calories L 372 kcal
Total fat L 9.3 g 12%
Saturated fat L 4.7 g 23%
Trans fat L 0 g
Cholesterol L 11.6 mg 4%
Sodium L 442 mg 19%
Total carbohydrates L 39.5 g 14%
Dietary fiber L 7 g 25%
Total sugars L 11.6 g
Added sugars L 9.3 g 19%
Protein L 37.2 g 74%
Vitamin A L 419 µg47%
Vitamin C L 62.8 mg70%
Vitamin D L 9.3 µg47%
Vitamin E L 7 mg47%
Vitamin K L 55.8 µg47%
Thiamin (B1) L 0.56 mg47%
Riboflavin (B2) L 0.61 mg47%
Pantothenic acid (B5) L 2.3 mg47%
Vitamin B6 L 0.79 mg47%
Folate (B9) L 186 µg47%
Vitamin B12 L 1.1 µg47%
Calcium L 605 mg47%
Iron L 8.4 mg46%
Magnesium L 195 mg46%
Phosphorus L 581 mg46%
Potassium L 814 mg17%
Zinc L 5.1 mg47%
Copper L 0.42 mg47%
Manganese L 1.1 mg47%
Selenium L 32.6 µg59%

% DV: percent of the FDA Daily Value for adults (reference amounts). Letters show how each value was obtained: M measured, C calculated, L label, Z assumed zero, I imputed. Vitamins and minerals not listed were not reported by the source.

Nutritional breakdown

Protein: 38%Carbohydrates: 40%Fat: 21%372kcal / 100 g
  • Protein 38%
  • Carbohydrates 40%
  • Fat 21%

Approximate share of calories, using general energy factors (4 kcal/g protein and carbohydrate, 9 kcal/g fat, 7 kcal/g alcohol).

Vitamins and minerals, % Daily Value per 100 g

Vitamin C70%Selenium59%Vitamin B1247%Pantothenic acid (B5)47%Vitamin A47%Copper47%Zinc47%Riboflavin (B2)47%Calcium47%Vitamin E47%

Nutritional insights

  • Protein37.2 gin the top quarter of other foods (median 6.9 g)
  • Fiber7 gin the top quarter of other foods (median 1.8 g)
  • Sugars11.6 gabove the median for other foods (median 3.5 g)
  • Fat9.3 gabove the median for other foods (median 6.4 g)
  • Saturated fat4.7 gabove the median for other foods (median 1.9 g)
  • Sodium442 mgabove the median for other foods (median 236 mg)
  • Protein per 100 kcal10 gprotein density, useful for comparing foods with different calorie levels

Product details

Brand
Nestle
Barcode
0043900860008
Label serving
1 bar (43 g)
Category
Other Foods

Ingredients

Ingredients not reported.

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Per 100 g. Calories in kcal. n/a: not reported by the source.

Frequently asked questions

How many calories are in Optifast?

100 g of Optifast has 372 kcal. Serving, 1 bar, 43 g (43 g): about 160 kcal.

Is Optifast high in protein?

Optifast contains 37.2 g of protein per 100 g (74% of the 50 g Daily Value), or 16 g in serving, 1 bar, 43 g (43 g). About 38% of its calories come from protein. Compared with other other foods, that is among the highest quarter (median 6.9 g).

How many carbs are in Optifast?

Optifast has 39.5 g of total carbohydrates per 100 g, including 7 g of fiber and 11.6 g of sugars. Label conventions differ: in the EU and some other regions carbohydrates are declared without fiber.

How much fat is in Optifast?

Optifast contains 9.3 g of fat per 100 g, of which 4.7 g is saturated (23% of the Daily Value).

What vitamins and minerals does Optifast contain?

Per 100 g, the most notable amounts relative to the Daily Value are Vitamin C (70% DV), selenium (59% DV), Vitamin B12 (47% DV), Pantothenic acid (B5) (47% DV) and Vitamin A (47% DV). The full list is in the vitamins and minerals table above.

How much sodium is in Optifast?

100 g contains 442 mg of sodium, 19% of the 2,300 mg Daily Value.

Where does this nutrition data come from?

From Open Food Facts, record dated April 22, 2025. FoodFactly last checked it on November 7, 2026. Each value above shows whether it was measured, calculated or taken from a label.

Source of the nutrition information

  • Open Food Facts, record 0043900860008. License: ODbL 1.0 (Open Food Facts). Source record dated April 22, 2025. Imported November 7, 2026.

Last updated: . Data quality score: 95/100 (how it is calculated).

Product data from Open Food Facts, made available under the Open Database License. Values are as declared on the label; labels can change over time, so check the package you have.

General nutrition information, not medical advice. Individual needs differ; see our disclaimer.