Calorie-budgeted top-up shoppers
If you want a portable sweet snack between meals, the energy in the complete bar may matter more to you than getting the most protein from one serving.
Who is this choice for?
Shoppers comparing protein portions
A small bar and a full-size protein bar can contribute quite different amounts of protein. Compare both grams of protein and kcal per bar before deciding which portion fits your plan.
Shoppers checking ingredients
If allergens, dietary ingredients or sweeteners affect your choice, check the label for the exact flavour and pack size rather than relying on the range name.
What should you compare?
Start with the portion you will eat, then weigh its protein against its energy and check the ingredients that matter to you.
| Priority | What to check | Your needs |
|---|---|---|
| Whole-bar energy | Read kcal per bar as well as per 100g. Note the bar weight: Myprotein UK lists 96 kcal per 30g Crispy Square, while Barebells UK lists 190 kcal per 55g Cookies & Cream bar. | For a small top-up, I want to know the energy in the portion I will actually eat. |
| Protein per portion | Compare grams of protein with kcal for the same whole bar. Myprotein UK lists 5.9g protein at 96 kcal; Barebells UK lists 20g at 190 kcal. PhD lists 21–22g at 247–250 kcal for two named 64g Smart Bar flavours. | If protein is the main reason for buying the bar, I may prefer a larger portion; if I only want a small snack, fewer grams may be enough for my purpose. |
| Sugar and sweeteners | Check sugars and energy separately, then read any sweetener warnings. Grenade UK lists 2g sugar for its White Chocolate Salted Peanut bar; that figure alone does not tell you its kcal. | I want to compare sugar without mistaking it for a measure of the bar’s total energy. |
| Ingredients and allergens | Read the ingredients, highlighted allergens and any ‘may contain’ statement on the exact flavour. Check dietary ingredients separately from the protein and energy figures. | A flavour needs to fit my ingredient requirements, even if its portion size and nutrition figures suit me. |
What is easy to overlook?
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Comparing only the per-100g figures
Per-100g values put products on a common weight basis, but a 30g snack and a 55g or 64g bar are different portions.
For the snack you intend to eat, compare kcal and protein per complete bar, then use the bar weight to understand the difference.
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Taking low sugar to mean low calorie
Sugars and energy are separate nutrition measures. Grenade UK lists 2g sugar for its White Chocolate Salted Peanut bar, which does not establish its kcal.
Check the energy value on the nutrition panel before treating any low-sugar bar as a calorie-led choice.
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Overlooking sweetener warnings on a multipack
Barebells UK and PhD warn that excessive consumption of the reviewed bars may have laxative effects. Quest Nutrition says tolerance to sugar alcohols can vary.
Read the warning and serving information for the exact product before buying several bars.
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Assuming flavours have the same ingredients
Ingredients and precautionary allergen statements can differ between products and flavours, so a familiar range name is not enough to establish suitability.
Check the current label for the exact flavour and pack size against your requirements.
Which brands illustrate the choices?
Myprotein
Its Crispy Square is an example of a smaller protein snack rather than a full-size bar.
- Myprotein UK lists 96 kcal, 5.9g protein and 5.1g fibre per 30g Crispy Square.
- That serving supplies less protein than the larger Barebells and PhD examples. Check the pack’s ingredients and allergen statements.
Barebells
Cookies & Cream shows what a larger protein portion can look like alongside a higher whole-bar energy figure.
- Barebells UK lists 20g protein and 190 kcal per 55g Cookies & Cream bar.
- Its product information lists possible gluten-containing cereals, soya, peanut and nut traces and warns that excessive consumption may have laxative effects.
PhD
The named Smart Bar flavours provide examples for shoppers placing more weight on protein per bar than on a small portion.
- PhD lists 21g protein and 250 kcal for Choc Brownie, and 22g protein and 247 kcal for Strawberries and Cream, each per 64g bar.
- These named flavours have higher whole-bar energy figures than the smaller Myprotein and Barebells examples. PhD also warns that excessive consumption may cause laxative effects.
Grenade
Its Carb Killa range includes bars for shoppers comparing protein and sugar, but those figures should not replace an energy check.
- Grenade UK lists 20g protein and 2g sugar for White Chocolate Salted Peanut.
- The product information warns that excessive consumption may have a laxative effect. Check kcal and ingredients for the exact bar before choosing it for a calorie-led top-up.
Quest
Quest Nutrition describes a protein-bar range that includes gluten-free bars and sugar alcohols.
- Quest Nutrition says its original protein bars contain up to 21g protein per bar.
- Its range description does not establish the nutrition or ingredients of every individual variant; check the exact pack and its sugar-alcohol information.
Tesco
Tesco is a grocery-shopping reference rather than a single protein-bar formulation.
- Tesco Groceries lists protein-bar products, including Barebells bars and multipacks, in its category.
- Check the individual listing or pack for the flavour, portion and nutrition information you intend to compare.
Joybuy protein bar options
These Joybuy listings cover Grenade bars and a KIND nut bar that could be considered for a top-up shop. Several are multipacks: check the nutrition per individual bar when comparing portions, and check the exact pack’s ingredients and warnings before buying.
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Grenade Soft Core Double Chocolate, 12 × 50g
The 50g bar size lets you compare a single portion with the smaller and larger bars discussed above. Check kcal and protein per bar, alongside the exact pack’s allergen and sweetener information.
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Grenade Soft Core Golden Caramel, 12 × 50g
This is another 50g Soft Core flavour in a 12-bar pack. Compare its own per-bar nutrition and ingredient label with Double Chocolate rather than assuming the flavours are identical.
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Grenade Soft Core Peanut Butter, 12 × 50g
Compare the nutrition for one 50g bar with the other Soft Core flavours. If peanuts or other allergens affect your purchase, read this flavour’s current ingredient and allergen label before buying.
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Grenade Oreo Flavour protein bars, 4 × 60g
At 60g per bar, this is a larger stated portion than the 50g Soft Core listings. Check its kcal and protein per complete bar before deciding whether it fits a calorie-led top-up; the low-sugar wording in its name does not answer that question.
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KIND Protein Dark Chocolate Nut Bars, 3 × 42g
The listed portion is a 42g bar, sold in a pack of three. Compare its per-bar energy and protein with the Grenade bars, and check the ingredient and allergen label if nuts affect your choice.
Protein bar questions
How do I compare protein bars for a lower-calorie top-up?
Compare kcal for the complete bar, then its weight and protein. Myprotein UK lists 96 kcal and 5.9g protein per 30g Crispy Square; Barebells UK lists 190 kcal and 20g protein per 55g Cookies & Cream bar. The smaller portion has a lower energy figure but also supplies less protein.
Should I choose the bar with the most protein?
Not solely on that figure. If you want a small top-up, compare protein with the kcal and size of the bar; if protein per snack matters more, a larger portion may fit your purpose. PhD lists 21–22g protein and 247–250 kcal for two named 64g Smart Bar flavours.
Does low sugar mean low calorie?
No: sugar and energy are different measures on the nutrition panel. Grenade UK lists 2g sugar for its White Chocolate Salted Peanut bar, but that figure does not establish its kcal. Check the energy value for the whole bar separately.
Do I need to check allergens for each flavour?
Yes, if an ingredient or allergen affects your purchase. Check the current ingredients, highlighted allergens and any ‘may contain’ statement for the exact flavour and pack size; do not assume another bar in the same range has the same label.
Why do some bars carry a laxative-effect warning?
Some reviewed product information links that warning to excessive consumption of bars containing sweeteners such as polyols. Barebells UK and PhD carry excessive-consumption warnings, while Quest Nutrition notes that tolerance to sugar alcohols varies. Read the warning and serving information on the bar you choose.