Fulfil vs Grenade Protein Bars: Which Should You Buy?

Quick Verdict

Fulfil offers added vitamins and a softer chew. Grenade delivers more protein and a more indulgent experience. Both are top-tier protein bars — the choice depends on whether you value nutrition extras or pure protein content.

Nutritional Comparison

Metric	Fulfil	Grenade Carb Killa
Calories	200 kcal	220 kcal
Protein	20g	23g
Carbs	18g	17g
Sugar	2g	2g
Fat	8g	9g
Fibre	3g	7g
Vitamins	9 added vitamins	None
Weight	55g	60g
Price (approx.)	£2.50–2.80	£2.50–3.00

The Vitamin Advantage

Fulfil’s unique selling point is 9 added vitamins per bar, including B12, C, D, and E. Each bar delivers roughly 30–50% of your daily reference intake for these vitamins. It’s not a replacement for a balanced diet, but it’s a genuine bonus that no competitor matches.

Taste and Texture

Fulfil: Softer, chewier bite. Less layered than Grenade — more of a uniform nougat texture with a chocolate coating. Chocolate Peanut Butter and Chocolate Salted Caramel are the best flavours. Pleasant to eat but less “exciting” than Grenade.

Grenade: Multi-layered with a caramel or cookie centre, protein crisp layer, and chocolate coating. Gooier and messier. Feels more like a treat. The texture variety within each bite is what makes Grenade feel indulgent.

Availability

Grenade wins on availability — found in almost every UK retailer. Fulfil is widely stocked in Tesco, Boots, and convenience stores but has slightly fewer stockists overall. Both are easy to find online in bulk.

Average Ratings

Source	Fulfil	Grenade
Amazon UK	4.5/5	4.6/5
Trustpilot	4.2/5	4.3/5

Very similar ratings. Both brands have loyal followings.

Who Each Bar Suits

Choose Fulfil if you:

• Want added vitamins with your protein
• Prefer a softer, chewier texture
• Want slightly fewer calories per bar
• Appreciate the nutritional bonus beyond just protein

Fulfil Vitamin & Protein Bars

Choose Grenade if you:

• Want maximum protein per bar (23g vs 20g)
• Prefer a gooey, layered, indulgent texture
• Want more fibre (7g vs 3g)
• Love having 15+ flavour options

Grenade Carb Killa

Final Recommendation

If you’re choosing one bar to eat daily, Fulfil’s added vitamins make it a smarter “functional” snack. If you care most about protein content and taste, Grenade edges ahead. Both are genuinely good — you won’t regret either choice.

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