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REESE'S Peanut Butter Protein Bar Calories
High-protein peanut butter flavored processed snack bar
CALORIES · 100 G
GI
POTASSIUM · 100 G
FIBER · 100 G
Quick answer
1 piece (medium) of REESE'S Peanut Butter Protein Bar (50 g) has 150 calories. That works out to 300 calories per 100 g. It contains 15 g of carbs, 16.7 g of protein, 5.8 g of fat and 2.5 g of fiber. Its 130 mg of Phosphorus covers 19% of the Daily Value. Its glycemic index is 35 (low), so it raises blood sugar slowly.
REESE'S Peanut Butter Protein Bar Nutrition Facts
Selected: 1 piece (medium) · 50 g
150
KCAL / 50G
Carbs
15g
· 5% DV
Protein
16.7g
· 33% DV
Fat
5.8g
· 7% DV
Fiber
2.5g
· 9% DV
DV is the share of the daily value covered, on a 2,000 kcal reference diet.
Calories come from: Carbs 34% · Protein 37% · Fat 29%
REESE'S Peanut Butter Protein Bar nutrition facts table · 1 piece (medium) (50 g)
| Nutrient | Amount | % DV |
|---|---|---|
| Calories | 150 kcal | |
| Total fat | 5.8 g | 7% |
| Saturated fat | 3 g | 15% |
| Trans fat | 0.05 g | |
| Sodium | 160 mg | 7% |
| Total carbohydrate | 15 g | 5% |
| Fiber | 2.5 g | 9% |
| Protein | 16.7 g | 33% |
Calories: Calories measure energy. Average daily need is 2,000 kcal. Excess calories are stored as fat, too few cause weight loss.
Carbs: Your body's primary energy source. The brain runs exclusively on carbs. Daily need: 275g.
Protein: Essential for muscle repair and cell growth. Daily need: 50g. Keeps you full and boosts metabolism.
Fat: Needed for hormone production and vitamin absorption. Daily need: 78g. Limit saturated fats, choose unsaturated.
Fiber: Critical for digestive health and satiety. Daily need: 28g. Stabilizes blood sugar, lowers cholesterol.
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How Many Calories in 1 REESE'S Peanut Butter Protein Bar?
| Serving | Amount | Calories |
|---|---|---|
| 1 piece (medium) | 50 g | 150 kcal |
| 0.25 piece (quarter) | 12.5 g | 38 kcal |
| ½ piece (half) | 25 g | 75 kcal |
| 1 piece (small) | 40 g | 120 kcal |
| 1 pack (whole) | 50 g | 150 kcal |
| 1 piece (large) | 65 g | 195 kcal |
| 100 g | 100 g | 300 kcal |
| 2 piece (double) | 100 g | 300 kcal |
| 3 piece (triple) | 150 g | 450 kcal |
Calculated from 300 calories per 100 g.
Frequently Asked Questions About REESE'S Peanut Butter Protein Bar
Does the REESE'S Peanut Butter Protein Bar taste like a Reese's Peanut Butter Cup?
The REESE'S Peanut Butter Protein Bar has a similar peanut-butter-and-chocolate flavor, but it is not the same product as a Reese's Peanut Butter Cup. Its protein-bar formulation gives it a different texture and nutritional profile.
What protein is in the REESE'S Peanut Butter Protein Bar?
The REESE'S Peanut Butter Protein Bar is made with added protein, but the exact protein blend can vary by market and formulation. Check the ingredient list on your package for the specific protein sources rather than assuming they are the same everywhere.
Can the REESE'S Peanut Butter Protein Bar replace a meal?
The REESE'S Peanut Butter Protein Bar is better treated as a snack than a meal replacement. A bar alone does not provide the range of foods in a balanced meal; pair it with something like fruit or yogurt if you need a more substantial snack.
Is the REESE'S Peanut Butter Protein Bar good before or after a workout?
The REESE'S Peanut Butter Protein Bar can be a convenient snack after a workout, or before one if it sits comfortably with you. Its peanut-butter-style filling and protein may feel heavy for some people when eaten right before exercise.
Can you freeze the REESE'S Peanut Butter Protein Bar?
Yes, you can freeze the REESE'S Peanut Butter Protein Bar in a sealed wrapper or airtight container. Let it soften briefly before eating, since freezing can make the bar firmer and change the texture of its chocolate coating.
How should you store an opened REESE'S Peanut Butter Protein Bar?
Store an opened REESE'S Peanut Butter Protein Bar in a cool, dry place and reseal the wrapper if possible. Eat it soon after opening; heat can soften or melt the chocolate coating, so avoid leaving it in a warm car or direct sunlight.
Can the REESE'S Peanut Butter Protein Bar help with weight loss?
The REESE'S Peanut Butter Protein Bar does not cause weight loss on its own. It may work as a filling snack for some people, but adding it on top of usual meals can increase overall intake; use it in place of another snack if that is your goal.
Can people with diabetes eat the REESE'S Peanut Butter Protein Bar?
Some people with diabetes may choose to eat the REESE'S Peanut Butter Protein Bar, but its protein content does not mean it has no effect on blood sugar. Consider its carbohydrates in your meal plan, and ask your healthcare professional if you use glucose-lowering medication.
Is the REESE'S Peanut Butter Protein Bar suitable for children?
Children can have the REESE'S Peanut Butter Protein Bar occasionally, but it is a packaged snack rather than a child-specific meal. Its peanut-butter flavor does not make it safe for a child with a peanut allergy; follow the package warnings.
How is the REESE'S Peanut Butter Protein Bar different from a homemade protein bar?
The REESE'S Peanut Butter Protein Bar is a ready-made, ultra-processed snack, while a homemade bar can be made from ingredients you choose and measure yourself. The packaged product is formulated for a consistent flavor and texture; homemade versions can vary widely.
REESE'S Peanut Butter Protein Bar Vitamins & Minerals
Vitamins
B3
1.2mg · 8% DV
Biotin
2µg · 7% DV
Vitamin E
0.9mg · 6% DV
B6
0.09mg · 5% DV
Minerals
Phosphorus
130mg · 19% DV
Copper
0.1mg · 11% DV
Magnesium
35mg · 8% DV
Manganese
0.18mg · 8% DV
Sodium
160mg · 7% DV
Potassium ⭐
150mg · 4% DV
REESE'S Peanut Butter Protein Bar Glycemic Index
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
How to Burn Off REESE'S Peanut Butter Protein Bar
To burn the 150 calories in 1 piece (medium) (50 g):
🚶
Walking (5 km/h)
🏃
Running (8 km/h)
🚴
Cycling
🏊
Swimming
Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.
What is REESE'S Peanut Butter Protein Bar?
REESE'S Peanut Butter Protein Bar is a packaged, ready-to-eat snack built around a familiar peanut-butter flavour, with protein as a prominent part of its profile. It is a convenient bar rather than a traditional dish, and needs no preparation.
Its sweet, nutty taste works well between meals, after exercise, or alongside coffee. The texture is chewy and substantial, making it easy to carry for a grab-and-go snack. With 33.33 g of protein per 100 g, it offers a protein-forward option when you want something convenient. Pair it with fruit for a more rounded snack, or enjoy it on its own when you need something easy to take along.
How Nutritious Is REESE'S Peanut Butter Protein Bar?
Nutrient density
Low
How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.
Satiety score
High
An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.
Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.
Is REESE'S Peanut Butter Protein Bar Processed?
NOVA 4
Ultra-Processed
1. Unprocessed
2. Minimally Processed
3. Processed
4. Ultra-Processed
NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.
Does REESE'S Peanut Butter Protein Bar Contain Allergens?
Contains these allergens:
Which Diets Is REESE'S Peanut Butter Protein Bar Good For?
Vegan
— Not suitable
Vegetarian
✓ Suitable
Gluten-Free
— Not suitable
Dairy-Free
— Not suitable
Mediterranean
— Not suitable
Paleo
— Not suitable
Whole30
— Not suitable
DASH
— Not suitable
Keto
— Not suitable
Low FODMAP
— Not suitable
REESE'S Peanut Butter Protein Bar Fat Profile
SATURATED
3g
MONOUNSATURATED
3.5g
POLYUNSATURATED
2.5g
Omega 6:3 ratio 112.5:1
Above the ideal 4:1 (112.5:1).
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Nutrition data compiled from USDA FoodData Central and scientific sources.