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  1. Reese's Peanut Butter Cups

Sugar barely curbs appetite, so two bites rarely satisfy. Adults consuming ≥25% of calories from sugar had 2.75× the CVD mortality risk vs <10% (Yang et al., JAMA Intern Med 2014). This bar runs 515 kcal and 47.2 g sugar per 100 g.

About this food

How should I track Reese's Peanut Butter Cups?

Reese's Peanut Butter Cups is a good source of magnesium. The trickiest part about tracking Reese's Peanut Butter Cups is that small portions pack a lot of calories, and most people estimate sweet portions poorly. Research (Almiron-Roig et al., Appetite 2013) found that calorie-dense foods are underestimated by 50–200% when portioned by eye. Weighing on a scale takes the guesswork out. And here is the mindset shift that helps: tracking sweets is not about guilt. It is about awareness. When you log a treat honestly, you can plan around it and still hit your targets for the day.

Macro Breakdown

Macro Split: 8% Protein, 41% Carbs, 51% FatMacro Split100%
Protein8%10.2g
Carbs41%55.4g
Fat51%30.5g

Nutrition Facts

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

Energy
  • Calories
    515kcal—
Macronutrients
  • Protein
    10.2g20%
  • Carbohydrates
    55.4g—
  • Fat
    30.5g—
  • Fiberathlete
    3.6g13%
  • Sugar
    47.2g—
  • Saturated Fat
    10.7g—
Minerals
  • Sodium
    357mg—
  • Calciumathlete
    78mg6%
  • Ironathlete
    1mg7%
Vitamins
  • Vitamin Dathlete
    0.0mcg0%

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

Serving Calculator

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Reese's Peanut Butter Cups — values for 30g

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Primary macros

Calories
155
kcal
Protein
3.1
g
Carbs
16.6
g
Fat
9.2
g

More nutrients

Fiber
1.1g
Sugar
14.2g
Sat. Fat
3.2g
Sodium
107mg
Calcium
23mg
Iron
0mg
Potassium
103mg
Magnesium
19mg
Zinc
0mg
Vitamin D
0.0mcg
Nutrient highlights
Good Source of MagnesiumGood Source of FiberGood Source of ZincGood Source of Protein

Frequently Asked Questions

Reese's Peanut Butter Cups is a good source of magnesium. The trickiest part about tracking Reese's Peanut Butter Cups is that small portions pack a lot of calories, and most people estimate sweet portions poorly. Research (Almiron-Roig et al., Appetite 2013) found that calorie-dense foods are underestimated by 50–200% when portioned by eye. Weighing on a scale takes the guesswork out. And here is the mindset shift that helps: tracking sweets is not about guilt. It is about awareness. When you log a treat honestly, you can plan around it and still hit your targets for the day.

Reese's Peanut Butter Cups contains 10.2g protein per 100g, which is a good source of protein. A 30g serving provides 3.1g protein.

Notable nutrients in Reese's Peanut Butter Cups include Magnesium, Fiber and Zinc. Per 100g: 10.2g protein, 55.4g carbs, and 30.5g fat.

Reese's Peanut Butter Cups contains 515 kcal per 100g, making it more calorie-dense. For weight loss, control portion sizes and fit it within your daily calorie targets.

Reese's Peanut Butter Cups is not ideal for a keto diet. At 51.8g net carbs per 100g, a single serving could easily exceed the daily 20-50g net carb limit.

Reese's Peanut Butter Cups provides 515 kcal, 10.2g protein, 55.4g carbs, and 30.5g fat per 100g. Compare with other sweets & desserts foods in our database to find the best option for your nutritional goals.

Track this food

30g(Standard)
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Sweets & Desserts

Reese's Peanut Butter Cups

Macros per 100g

515
Calories
Protein10.2g
Fat30.5g
Carbs55.4g
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 16, 2026

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Potassium
343mg7%
  • Magnesiumathlete
    62mg15%
  • Zincathlete
    1mg12%
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