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🍫
Mars Calories
Chocolate-covered caramel and nougat bar
CALORIES
GI
POTASSIUM
FIBER
Mars Nutrition Facts
Selected: 100 g
448
KCAL / 100G
Carbs
70g
· 64%
Protein
4g
· 4%
Fat
16g
· 32%
Fiber
1.2g
Mars Vitamins & Minerals
Vitamins
B2
0.12mg · 9% DV
B12
0.2µg · 8% DV
B5
0.18mg · 4% DV
Biotin
1.2µg · 4% DV
Minerals
Calcium
110mg · 11% DV
Phosphorus
70mg · 10% DV
Iron
1mg · 6% DV
Sodium
140mg · 6% DV
Mars Glycemic Index
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
Is Mars 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 Mars Contain Allergens?
Contains these allergens:
Which Diets Is Mars 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
Mars Fat Profile
SATURATED
8.5g
MONOUNSATURATED
4.8g
POLYUNSATURATED
0.4g
Omega 6:3 ratio 30:1
Above the ideal 4:1 (30:1).
Foods Similar to Mars
Mars — Frequently Asked Questions
Is a Mars bar better before or after a workout?
Because it provides fast-digesting carbs, it can be useful shortly before or after hard exercise for quick energy. On its own, though, it is low in protein, so it is not the best recovery snack unless you pair it with a protein source.
Does a Mars bar keep you full for long?
Usually not for very long. It is relatively high in sugar and low in fibre and protein, so the feeling of fullness may wear off quickly for many people.
Should a Mars bar be stored in the fridge?
A cool, dry cupboard is usually enough. Refrigeration can make the chocolate hard and change the texture, though it may help in very hot weather.
Can you freeze a Mars bar?
Yes, you can freeze it. The caramel and nougat texture may change slightly after thawing, so wrap it well to protect quality.
How long does a Mars bar last once opened?
Once opened, it is best eaten fairly soon for the best texture and flavour. If left exposed, it can dry out, pick up odours, and become less pleasant to eat.
Is eating a Mars bar with coffee a good idea?
Many people enjoy the combination because coffee's bitterness balances the sweetness. But in sensitive people, the mix of caffeine and sugar may feel a bit too stimulating.
Will a Mars bar spike blood sugar quickly?
As a sugary sweet, it can raise blood sugar relatively quickly in many people. People with diabetes or those who are sensitive to blood sugar swings should be more careful with portion size.
How is a Mars bar different from dark chocolate as a snack?
A Mars bar is built around nougat and caramel, so it is more candy-like and sugar-focused than dark chocolate. Dark chocolate is usually more cocoa-forward and is often eaten in smaller amounts.
Is a Mars bar a good everyday snack?
It can fit occasionally as a treat, but as an ultra-processed food it is not the strongest choice for a daily snack habit. Less processed options are usually better for regular eating.
Who should be especially careful with Mars bars?
Anyone with dairy or soy allergy should avoid them because those allergens are present. People managing diabetes, appetite control, or trying to cut back on ultra-processed foods may also want to be cautious.
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Nutrition data compiled from USDA FoodData Central and scientific sources.