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  4. M&M Mars, Kudos Whole Grain Bars, peanut butter

This snack is 463 kcal and 20.8 g fat per 100 g. Breaded, par-fried, oven-finished products carry the full frying calorie load. In NIH data (Hall et al., Cell Metab 2019), UPF menus drove +508 kcal/day overconsumption — weigh the finished weight.

About this food

How should I track M&M Mars, Kudos Whole Grain Bars, peanut butter?

M&M Mars, Kudos Whole Grain Bars, peanut butter is high in calcium. When it comes to M&M Mars, Kudos Whole Grain Bars, peanut butter, weighing beats counting every time. Snack pieces vary in size, and a handful from a bag can easily be 50–100% more than the label serving. Research (Almiron-Roig et al., Appetite 2013) shows that people consistently underestimate portions of calorie-dense snacks. Another common trap: multi-serving packages. The label might show 150 calories "per serving," but if the bag contains three servings, you are really looking at 450 calories. Always check whether values are per piece, per serving, or per package.

Macro Breakdown

Macro Split: 5% Protein, 55% Carbs, 40% FatCarbs55%
Protein5%5.9g
Carbs55%64.7g
Fat40%20.8g

Nutrition Facts

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

Energy
  • Calories
    463kcal—
Macronutrients
  • Protein
    5.9g12%
  • Carbohydrates
    64.7g—
  • Fat
    20.8g—
  • Fiberathlete
    2.6g9%
  • Sugar
    44.3g—
  • Saturated Fat
    10.4g—
Minerals
  • Sodium
    268mg—
  • Calciumathlete
    871mg67%
  • Ironathlete
    1mg5%
Vitamins
  • Vitamin Dathlete
    0.0mcg0%

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

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M&M Mars, Kudos Whole Grain Bars, peanut butter — values for 30g

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Primary macros

Calories
139
kcal
Protein
1.8
g
Carbs
19.4
g
Fat
6.2
g

More nutrients

Fiber
0.8g
Sugar
13.3g
Sat. Fat
3.1g
Sodium
80mg
Calcium
261mg
Iron
0mg
Potassium
70mg
Magnesium
23mg
Zinc
0mg
Vitamin D
0.0mcg
Nutrient highlights
High in CalciumGood Source of Magnesium

Frequently Asked Questions

M&M Mars, Kudos Whole Grain Bars, peanut butter is high in calcium. When it comes to M&M Mars, Kudos Whole Grain Bars, peanut butter, weighing beats counting every time. Snack pieces vary in size, and a handful from a bag can easily be 50–100% more than the label serving. Research (Almiron-Roig et al., Appetite 2013) shows that people consistently underestimate portions of calorie-dense snacks. Another common trap: multi-serving packages. The label might show 150 calories "per serving," but if the bag contains three servings, you are really looking at 450 calories. Always check whether values are per piece, per serving, or per package.

M&M Mars, Kudos Whole Grain Bars, peanut butter contains 5.9g protein per 100g, which is lower in protein. A 30g serving provides 1.8g protein.

Notable nutrients in M&M Mars, Kudos Whole Grain Bars, peanut butter include Calcium and Magnesium. Per 100g: 5.9g protein, 64.7g carbs, and 20.8g fat.

M&M Mars, Kudos Whole Grain Bars, peanut butter contains 463 kcal per 100g, making it more calorie-dense. For weight loss, control portion sizes and fit it within your daily calorie targets.

M&M Mars, Kudos Whole Grain Bars, peanut butter is not ideal for a keto diet. At 62.1g net carbs per 100g, a single serving could easily exceed the daily 20-50g net carb limit.

M&M Mars, Kudos Whole Grain Bars, peanut butter provides 463 kcal, 5.9g protein, 64.7g carbs, and 20.8g fat per 100g. Compare with other snacks foods in our database to find the best option for your nutritional goals.

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Snacks

M&M Mars, Kudos Whole Grain Bars, peanut butter

Macros per 100g

463
Calories
Protein5.9g
Fat20.8g
Carbs64.7g
Article research basis
1,316Papers Analyzed
4,659Foods in Database
100%Peer-Reviewed Sources
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Reviewed by Calibr8

Peer-reviewed data · Last updated March 13, 2026

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