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How Many Calories in Formulated Bar, Slim-Fast Optima Meal Bar, Milk Chocolate Peanut?

Fact-checked against original USDA source data by Jordan Morley, Editorial Reviewer. Not a registered dietitian — nutrition figures are sourced directly from USDA FoodData Central, not independently assessed medical advice.

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Quick reference — common serving sizes

A formulated bar, slim-fast optima meal bar, milk chocolate peanut contains 386 calories per 100g. A typical 1 bar (55g) provides about 212 calories. Formulated Bar, Slim-Fast Optima Meal Bar, Milk Chocolate Peanut is high in calories and is a good source of protein. Accurate tracking starts with weighing portions — a digital kitchen scale removes all the guesswork.

Formulated Bar, Slim-Fast Optima Meal Bar, Milk Chocolate Peanut Nutrition Facts

% of Daily Value (per 100g)

Based on a standard 2,000-calorie reference diet — the same basis used on nutrition labels in the US and UK.

• High in protein (32% DV) — an excellent source
• High in carbohydrates (22% DV) — an excellent source
• A good source of fibre (18% DV)
• A good source of fat (11% DV)
• High in calcium (51% DV) — an excellent source
• High in iron (28% DV) — an excellent source
• High in vitamin C (107% DV) — an excellent source
• High in vitamin A (104% DV) — an excellent source
• High in selenium (85% DV) — an excellent source
• High in riboflavin (B2) (146% DV) — an excellent source

• High in saturated fat (27% DV) — worth weighing against your daily intake if you're watching this specifically

• Calories: 19% DV
• Protein: 32% DV
• Carbohydrates: 22% DV
• Fibre: 18% DV
• Fat: 11% DV
• Saturated fat: 27% DV
• Sodium: 11% DV
• Potassium: 6% DV
• Calcium: 51% DV
• Iron: 28% DV
• Vitamin C: 107% DV
• Vitamin A: 104% DV
• Selenium: 85% DV
• Riboflavin (B2): 146% DV

Have a cat or dog? Check whether formulated bar, slim-fast optima meal bar, milk chocolate peanut is safe for your dog or safe for your cat before sharing. Also check the full ingredient breakdown and food safety guide for pregnancy and storage advice. If calorie tracking is part of a broader health check, hormone testing can rule out metabolic factors affecting your results. Tracking supplements too? Check drug and supplement interactions before combining anything new.

Good to know

Check the actual serving size on packaging before comparing to the per-100g figures here — snack portions are often smaller (or larger) than 100g.

Does formulated bar, slim-fast optima meal bar, milk chocolate peanut fit your diet?

High-protein diets

At 16.2g of protein per 100g, formulated bar, slim-fast optima meal bar, milk chocolate peanut clears the 15g/100g threshold generally used to call a food high-protein — a useful contributor if you're tracking protein intake for muscle maintenance, satiety, or a higher-protein eating pattern.

Fibre intake

Formulated Bar, Slim-Fast Optima Meal Bar, Milk Chocolate Peanut provides 5.1g of fibre per 100g — a meaningful contribution toward the commonly cited 25-30g daily target, which supports digestion and helps with feeling fuller for longer.

Moderation note

Formulated Bar, Slim-Fast Optima Meal Bar, Milk Chocolate Peanut is relatively energy-dense (386 kcal/100g) with 5.4g of saturated fat per 100g — fine as part of a varied diet, worth weighing rather than eyeballing if you're watching saturated fat intake specifically.

Foods with a similar calorie count

Other snacks closest to formulated bar, slim-fast optima meal bar, milk chocolate peanut by calories per 100g:

Last updated: 27 October 2026

Nutrition data: USDA FoodData Central (public domain, CC0 1.0). Values are per 100g unless stated.