BioStacks
MyProtein

THE Re-Fuel Protein Bar

bar · 80g · 12 servings

MyProtein · £13.49

Best for

Muscle

Ingredients (2)

Dietary Protein

100%

Dose

22 g

Target

20–30 g

Form

—

Fibre

6.7 g

Trace amount — not scored

Nutrition

Calories, macros & sodium.

  • Sodium20 mg

Other Ingredients (25)

Caramel ColorColor

Class III and IV caramel colors contain 4-methylimidazole (4-MEI), classified by IARC as Group 2B (possibly carcinogenic to humans) in 2011 (Monograph Vol. 101). California Prop 65 lists 4-MEI as a known carcinogen; products delivering >29 mcg/day require a cancer warning label. NTP TR-535 (2007) found 4-MEI caused lung tumors in mice. Major cola brands (Coca-Cola, Pepsi) voluntarily reformulated 2012-2014 to reduce 4-MEI below California thresholds. Because labels never specify Class I (sugar + heat only, safer) vs Class III/IV (ammonia-process, contains 4-MEI), consumers cannot verify which they're consuming. Combined with the additive's purely cosmetic purpose, the risk:benefit ratio is unfavorable for any supplement.

Glucose SyrupSweetener

High glycemic load; source typically corn (generally gluten-free)

SucroseSweetener

Added sugars and high glycemic load; dental caries risk

MaltitolSweetener

Worst GI tolerance of the common sugar alcohols — laxative effect at doses above ~10–15 g/serving in many adults; threshold is lower in children. Glycemic index (~52) is significantly higher than erythritol (0) or xylitol (~7) — meaningful blood glucose impact at typical serving sizes. The 'sugar-free' marketing claim masks real metabolic effects when consumed in quantity.

DextroseSweetener

A simple glucose sugar used as a bulking agent, sweetener, and tablet diluent

Natural FlavorsFlavor

Broad regulatory category of flavor constituents derived from natural sources. Composition is proprietary and not disclosed — 'Natural Flavors' can include several hundred different compounds depending on the target flavor profile, including hexane-extracted constituents and proprietary carrier solvents. 'Natural' is a regulatory definition (21 CFR §101.22), not a safety guarantee.

Natural FlavorsFlavor

Broad regulatory category of flavor constituents derived from natural sources. Composition is proprietary and not disclosed — 'Natural Flavors' can include several hundred different compounds depending on the target flavor profile, including hexane-extracted constituents and proprietary carrier solvents. 'Natural' is a regulatory definition (21 CFR §101.22), not a safety guarantee.

Palm Kernel OilCarrier

Oil pressed from the kernel (seed) of the oil palm fruit — distinct from palm oil, which comes from the fruit mesocarp. ~80% saturated fat, predominantly lauric and myristic acid; solid at room temperature

How to Take It

Take it anytime

Timing doesn't matter for this one — taking it consistently does.

With or without food

On the label

Consume as a high protein snack, as and when required. This product is intended to be used alongside a varied and balanced diet and a healthy lifestyle.

General guidance based on the ingredients, not a substitute for the label or your doctor.

Price Check

No price yet

$10$20$50

What 19 fiber supplements cost

Track this supplement in your stack

Get personalized insights, interactions, and coverage recommendations.

Get Started Free

Similar Supplements

All-Natural Peanut Butter

MyProtein

All-Natural Peanut Butter

💪 for Muscle

98
Protein Cookie

MyProtein

Protein Cookie

💪 for Muscle

87
Layered Protein Bar

MyProtein

Layered Protein Bar

💪 for Muscle

78
Oat Protein Flapjack

MyProtein

Oat Protein Flapjack

💪 for Muscle

72
Protein Mug Cake Mix

MyProtein

Protein Mug Cake Mix

💪 for Muscle

71

Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

BioStacks

Know exactly what's in your supplements.

Navigate

  • Home
  • App Store
  • Google Play

Resources

  • Contact & Support
  • Pricing
  • Terms of Service
  • Privacy Policy
  • Refund Policy

Explore

  • Health Areas
  • Best Supplements
  • Nutrients
  • All Supplements

Popular Picks

  • Best Magnesium for Sleep
  • Best Collagen for Skin
  • Best Creatine for Muscle
  • Best Vitamin D for Bone Health
  • Best Probiotics for Digestion
  • Best CoQ10 for Heart
© 2026 BioStacks. All rights reserved. Not medical advice.