Families comparing fat across regular snacks
When several people will eat the bars, compare fat per 100g before looking at individual portions. A high-protein, low-sugar or “lean” description is not a substitute for the nutrition panel.
Who is shopping?
Households buying multipacks
Pack count matters only if the flavours and ingredients work for the people who will eat them. Check each variety before committing to a larger quantity.
Households with different dietary requirements
Check the ingredients, highlighted allergens and any “may contain” statement for each flavour. Vegan suitability, for example, does not answer a separate question about soya or peanut allergens.
What should you compare?
Decide whether you need a bar that meets the low-fat claim condition or one with less fat than your usual choice. Then check portions and household suitability before choosing a pack size.
| Priority | What to check | When it matters |
|---|---|---|
| Fat content | Compare total fat and saturates per 100g, then the amount per bar. For a solid food described as low fat, legislation.gov.uk sets the claim condition at no more than 3g fat per 100g. | I want either a bar that meets the low-fat condition or one with less fat than our usual bar; those are different choices. |
| Protein and sugar | Read the protein and sugar figures alongside fat for the exact flavour. Myprotein lists 10g fat per 100g for its Lean Protein Bar, while Tesco lists 16g per 100g for TREK High Protein Choc Caramel. | Protein is part of why we buy these snacks, but I do not want a protein or low-sugar claim to stand in for the fat figure. |
| Pack choice | Check the number of bars, individual bar size and flavours in the pack. Compare nutrition for each variety rather than assuming a mixed pack has one set of values. | Before buying a case, I want to know that people at home will eat the flavours and can use the ingredients. |
| Household suitability | Read the current ingredients, highlighted allergens, “may contain” statements and any sweetener warnings on each flavour. | Different people in our household may need different bars; one suitable flavour does not establish that the whole pack works for everyone. |
What can catch you out?
-
Reading “high protein” or “low sugar” as “low fat”
Myprotein lists 10g fat per 100g for its Lean Protein Bar, and Tesco lists 16g per 100g for TREK High Protein Choc Caramel. Neither figure meets the 3g-per-100g condition for a low-fat claim on a solid food published by legislation.gov.uk.
Start with fat per 100g on the exact flavour; use the per-bar figure afterwards to understand the portion.
-
Buying a case before checking who can eat it
The TREK High Protein Choc Caramel pack listed by Tesco contains soya and peanuts and carries “may contain” information for other allergens. A flavour or ingredient that does not work for someone at home can leave part of a multipack uneaten.
Check every intended eater’s requirements against the current pack, and try a smaller quantity first if flavour acceptance is uncertain.
-
Relying on an older label for a repeat purchase
Ingredients, nutrition figures and allergen statements can change when a product is reformulated.
Recheck the exact flavour and pack size when buying again, particularly if the packaging has changed.
-
Overlooking a polyol warning
GOV.UK food-labelling guidance specifies a laxative-effect warning for foods containing more than 10% added polyols. This is a separate consideration from the bar’s sugar and fat figures.
Read the ingredients and any warning on the current pack before buying bars for several household members.
Brand references
Brand ranges and individual flavours can differ, so use these references to guide checks on the exact bar rather than assuming a whole range has one fat profile.
Tesco
Tesco lists individual bars and multipacks, with nutrition and ingredient information on product pages.
- Its listing for TREK High Protein Choc Caramel gives fat figures per 100g and per bar, allowing both comparisons.
- That listed bar has 16g fat per 100g; check the current pack if considering it for a lower-fat shop.
Myprotein
Myprotein sells protein bars, including a product named Lean Protein Bar.
- The Lean Protein Bar nutrition information gives figures per 100g and per 45g bar.
- It lists 10g fat per 100g and is not suitable for vegetarians; the word “Lean” does not establish a low-fat claim.
PhD
PhD offers Smart Protein Bars in a 12-bar pack.
- The pack format may be relevant when several people already know they like the same bar.
- Check the exact flavour’s fat figure and ingredients before treating a Smart Protein Bar as a lower-fat household choice.
Grenade
Grenade describes its protein-bar range in terms of protein and low sugar.
- Those stated attributes give protein- and sugar-focused shoppers a starting point for comparing flavours.
- Neither attribute establishes the fat content of an individual bar; check fat and saturates on its label.
Barebells
Barebells offers several protein-bar styles and flavours.
- Barebells states that its Cinnamon Bun Soft Protein Bar contains 16g protein per bar.
- Check the fat figure and ingredients for the particular flavour before choosing a larger pack.
Quest
Quest describes its protein-bar range using protein and low-sugar claims.
- Its range provides another set of labelled products to assess against a household’s intended snack choices.
- For a UK family shop, check the specific product’s UK label, fat content and suitability before including it.
Protein bars and flapjacks on Joybuy
These multipacks cover Grenade protein-bar flavours and a TREK protein flapjack for a larger shop. Their pack descriptions do not establish that they meet a low-fat target: compare the current fat-per-100g figures and ingredients before choosing one.
No image available
Grenade Oreo Protein Bars, 12 x 60g
This 12-bar pack is an option when the household wants the same flavour in quantity. The product name describes it as high protein and low sugar; check the current fat-per-100g figure and allergens separately before buying for a lower-fat shop.
No image available
Grenade Soft Core Double Chocolate, 12 x 50g
The 12 individually sized bars may suit a household that already knows it wants Double Chocolate. Compare fat per 100g with the family’s usual bar, then check the current ingredients for everyone who will eat them.
No image available
Grenade Soft Core Golden Caramel, 12 x 50g
This is a 12-bar Golden Caramel pack for shoppers considering one flavour in quantity. Check its fat per 100g and per bar, along with the current allergen statement, before deciding whether it fits the household.
No image available
Grenade Soft Core Peanut Butter, 12 x 50g
The Peanut Butter flavour comes in a 12-bar pack. Because this flavour matters particularly to households checking peanut ingredients, read the full current allergen statement as well as the fat figure before buying.
No image available
TREK Salted Caramel Protein Flapjacks, 3 x 50g
This three-pack is a smaller-quantity alternative to the 12-bar cases. It is a protein flapjack rather than one of the Grenade bars, so compare its own fat-per-100g figure and ingredients instead of assuming the products have similar nutrition.
Common questions
Does low sugar mean a protein bar is low fat?
No. Sugar and fat are separate figures on the nutrition panel. Tesco lists 16g fat per 100g for TREK High Protein Choc Caramel despite its low-sugar description, so check the exact bar’s fat and saturates figures.
What does “low fat” mean for a solid protein bar?
The low-fat claim condition published on legislation.gov.uk is no more than 3g fat per 100g for a solid food. Use the current per-100g figure for the exact flavour; a smaller bar does not change that comparison basis.
Should I start with a multipack for a family shop?
Check the flavours, ingredients and allergens for everyone who will eat the bars before committing to a multipack. A smaller quantity lets the household try a flavour first if you are unsure it will be eaten.
Why do some bars carry a laxative-effect warning?
GOV.UK food-labelling guidance specifies that warning for foods containing more than 10% added polyols. Read the warning and ingredients on the particular pack, especially when buying bars for several people.