275 protein bars products sold in Irish supermarkets, ranked by protein per 100 calories.
| Product | kcal/100g | Protein/100kcal | Carbs/100kcal | Fat/100kcal |
|---|---|---|---|---|
| Lidl Chocolate Brownie Protein Bar 45g | 369 | 13.6g | 6.9g | 3g |
| Lidl Protein Bars Chocolate Brownie Flavour 135g | 407 | 12.3g | 7g | 2.5g |
| Optimum Nutrition Complete Protein Bar Double Rich Chocolate Flavour 50g | 333 | 12g | 7.2g | 2.4g |
| Optimum Nutrition Complete Protein Bar Chocolate Orange Flavour 50g | 331 | 11.8g | 7.9g | 2.3g |
| MyProtein Chocolate Orange Flavour High Protein Bar 80g | 324 | 11.6g | 9.3g | 2.3g |
| Reflex Protein Bar Chocolate Toffee Bar 60g | 307 | 11.4g | 10.9g | 2.3g |
| Lidl Gain Protein Bar Salted Caramel Flavour 60g | 307 | 11.3g | 10.4g | 2.5g |
| Applied Nutrition Protein Crunch Protein Bar White Chocolate Caramel Flavour 62g | 313 | 11.1g | 10.8g | 2.4g |
| USN Protein Bar Strawberry Cheesecake Flavour 55g | 306 | 11.1g | 11.1g | 2.3g |
| MyProtein Barbecue Crisps 25g | 400 | 11g | 4.3g | 3.1g |
| USN Banana Waffle Flavour Protein Bar 40g | 335 | 11g | 10.4g | 2.3g |
| USN Diet Whey Meal Replacement Protein Bar - Chocolate Fudge 55g | 364 | 11g | 9g | 2.8g |
| MyProtein Lean Layered Protein Bar Cookie Dough Flavour 40g | 342 | 10.9g | 8.8g | 2.3g |
| MyProtein Lean Layered Protein Bar White Chocolate Raspberry Flavour 40g | 345 | 10.9g | 8.7g | 2.5g |
| MyProtein Lean Layered Protein Bars Cookie Dough Flavour 3 x 40g | 342 | 10.9g | 8.8g | 2.3g |
| USN Protein Bar Banana Waffle Flavour 55g | 316 | 10.9g | 10.9g | 2.4g |
| USN Protein Bar Salted Caramel Flavour 55g | 316 | 10.9g | 10.9g | 2.5g |
| Grenade Carb Killa Fudge Brownie High Protein Bar 60g | 359 | 10.8g | 6.3g | 3.7g |
| Grenade Carb Killa High Protein Bar Caramel Chaos 60g | 357 | 10.8g | 6.3g | 3.7g |
| Grenade Carb Killa High Protein Bar Selection Box 12 x 60g Caramel Chaos | 357 | 10.8g | 6.3g | 3.7g |
| Barebells Protein Bar Cookies & Cream 55g | 346 | 10.7g | 9g | 3.5g |
| Grenade Dark Chocolate Mint Flavour Protein Bar 12 x 60g | 337 | 10.7g | 9.5g | 3.3g |
| Grenade Carb Killa High Protein Bar White Chocolate Mocha 60g | 356 | 10.6g | 7.2g | 3.7g |
| Grenade Protein Bars White Chocolate Cookie Flavour 12 x 60g | 358 | 10.6g | 8.4g | 3.9g |
| Grenade White Chocolate Cookie Flavour Protein Bar 60g | 358 | 10.6g | 8.4g | 3.9g |
| Fulfil Dark Chocolate & Mint Vitamin Protein Bar | 338 | 10.5g | 5.4g | 3.6g |
| Grenade Fudged Up Flavour Chocolate Protein Bar 60g | 350 | 10.5g | 9.1g | 3.6g |
| Grenade Protein Bar Caramel Chaos Flavour 60g | 344 | 10.5g | 8.4g | 3.8g |
| Grenade Protein Bars Caramel Chaos Flavour 12 x 60g | 344 | 10.5g | 8.4g | 3.8g |
| Optimum Nutrition Caramel Chocolate Flavour Protein Bar 60g | 317 | 10.5g | 9.5g | 3.2g |
| USN Protein Bar Chocolate Brownie Flavour 55g | 311 | 10.5g | 10.5g | 2.5g |
| Fulfil Chocolate brownie flavour vitamin and protein bar | 331 | 10.4g | 10.6g | 3.4g |
| GRENADE Carb Killa High Protein Bar White Chocolate Cookie Flavour 3 x 60g | 358 | 10.4g | 7.1g | 3.8g |
| Grenade Carb Killa High Protein Bar Banana Armour 60g | 362 | 10.4g | 6.8g | 3.8g |
| Grenade Carb Killa High Protein Bar Gingerbread 60g | 365 | 10.4g | 7.1g | 3.8g |
| Grenade Carb Killa High Protein Bar Selection Box 12 x 60g White Chocolate Cookie | 358 | 10.4g | 7.1g | 3.8g |
| Grenade Carb Killa High Protein Bar White Chocolate Cookie 60g | 358 | 10.4g | 7.1g | 3.8g |
| Optimum Nutrition Whipped Protein Bar Chocolate Caramel Flavour 60g | 327 | 10.4g | 9.5g | 2.8g |
| Optimum Nutrition Whipped Protein Bar Rocky Road Flavour 60g | 328 | 10.4g | 9.1g | 2.9g |
| USN Low Sugar Protein Bar Salted Caramel Flavour 40g | 100 | 10.4g | 10.4g | 2.3g |
| USN Protein Bar Raspberry Dark Chocolate Flavour | 317 | 10.4g | 10.4g | 2.2g |
| Barebells Peanut Butter Protein Bar 55g | 360 | 10.3g | 8.9g | 3.6g |
| Barebells Protein Bar Mint Dark Chocolate 55g | 350 | 10.3g | 8.6g | 3.7g |
| Fulfil Chocolate Caramel Protein Bar | 351 | 10.3g | 7.4g | 3.4g |
| Fulfil Chocolate caramel flavour vitamin and protein bar | 349 | 10.3g | 7.4g | 3.4g |
| Fulfil Milk chocolate crunch protein bar | 362 | 10.3g | 8.3g | 3.7g |
| Fulfil chocolate caramel flavour vitamin & protein bar | 351 | 10.3g | 7.4g | 3.4g |
| Grenade Caramel Chaos Protein Bar 60g | 338 | 10.3g | 10.3g | 3.4g |
| Grenade Carb Killa High Protein Bar Chocolate Crunch 60g | 368 | 10.3g | 6.7g | 3.9g |
| Grenade Carb Killa High Protein Bar Selection Box 12 x 60g Dark Chocolate Mint | 357 | 10.3g | 6.3g | 4g |
Showing the top 50 of the 275 protein bars products that carry a comparable calorie figure, ranked by protein per 100 calories. Figures per label, sourced from Open Food Facts and tracker user logs.
Median across all 275 of them is 9.4g of protein per 100 calories. 73 clear 10g of protein per 100 calories — about one in four, and 10g is the line Keith uses for a food that pays for its calories.
Calories run from 100 to 454 per 100g inside this one group, a 5-fold spread, so “protein bars” on its own tells you almost nothing about what a portion costs you.
Own-brand is not the compromise here. The supermarket own-label median is 9.6g of protein per 100 calories across 10 products, against 9.4g for the 265 name-brand ones.
On the numbers the pick is Lidl Chocolate Brownie Protein Bar 45g: 13.6g of protein per 100 calories, 1.4 times the 9.4g median for the group.
28 of the 275 carry 400 calories or more per 100g — the ones worth weighing rather than eyeballing.
A protein-per-calorie number is only useful once you know the target, and that is how much protein a day actually works out to.
For one specific product rather than the whole group, the 20,000-product database is searchable on Calories in Ireland, and the same figures are built into the free calorie tracker.
We track 275 protein bars products across Irish supermarkets and brands. 275 of them carry 20 calories or more per 100g, which is the point below which protein per 100 calories stops being a real number, so those are the ones ranked and averaged here.
The table is sorted highest protein per 100 calories first, so the answer is the top row. The more useful number is that the median for the whole group is 9.4g per 100 calories and 73 products clear 10g — that tells you whether protein bars is worth buying for protein at all, which protein per 100g does not.