Afternoon snackers comparing fat
If you want protein during a tea break while reducing fat, compare bars by total and saturated fat per 100g. Check the values per bar as well, so the comparison reflects the portion you would eat.
Who is this choice for?
The useful starting point is whether lower fat is your main requirement or one consideration alongside portion size and flavour.
Shoppers looking for a sweet-style bar
A chocolate-style protein bar may suit the flavour and portion you want, but its protein or sugar claim cannot settle the fat question. Read the whole nutrition panel before choosing it for a lower-fat break.
Shoppers checking ingredients closely
If allergens or sweeteners affect your choice, read the current pack rather than relying on a product name or an online listing. Tesco notes that recipes and nutrition and allergen information can change.
What should you compare?
Start with the fat figures that answer the lower-fat question, then compare the protein, portion and ingredients that matter for your afternoon break.
| Priority | What to check | Your needs |
|---|---|---|
| Total fat | Compare fat per 100g across bars. The NHS food-label guide defines low fat as 3g or less per 100g; also check fat per bar for the portion you would eat. | I am choosing this snack partly to reduce fat, so a low-sugar claim alone does not answer my main question. |
| Saturated fat | Read saturated fat separately from total fat. The NHS guide defines low saturated fat as 1.5g or less per 100g; check the per-bar figure too. | Even if a bar has less total fat than another, I want to see its saturated-fat figure before deciding. |
| Protein and portion | Compare protein and energy per bar alongside bar size. Myprotein states that Lean Layered has 15g protein; PhD lists 21g protein and 238 calories for Smart Bar. These figures do not establish which has less fat. | For a short afternoon break, I want a portion that fits what I intend to eat, rather than choosing by the largest protein number. |
| Sugar and sweeteners | Check sugars per bar and read the ingredients for sweeteners, including polyols such as maltitol. Neither a low-sugar nor a no-added-sugar claim describes total fat. | If sweeteners matter to me, I need the ingredient list as well as the nutrition figures. University Hospitals Sussex NHS Foundation Trust notes that large amounts of polyols can have a laxative effect. |
| Allergens and recipe changes | Read the ingredients and emphasised allergens on the current pack, plus any relevant “may contain” statement. Tesco warns that product formulations and label information may change. | Where an ingredient affects my choice, I need to check the bar I receive rather than rely solely on an older listing. |
What can mislead you?
-
Taking “low sugar” to mean low fat
Sugars, total fat and saturated fat are separate entries on a nutrition panel. A sugar claim cannot tell you whether a bar meets your fat criterion.
Compare fat and saturated fat per 100g, then check the amounts in the bar you plan to eat. The NHS low-fat guide is 3g fat or less per 100g.
-
Reading “lean” as an absolute low-fat claim
Myprotein says Lean Layered has fewer calories and less fat than its original Layered Bar. That comparison does not, by itself, establish that a particular flavour meets the NHS low-fat benchmark.
Use the current flavour-specific panel to check fat, saturated fat, protein and energy per bar before making the comparison that matters to you.
-
Overlooking polyols in a low-sugar bar
Some protein bars use polyols as sweeteners. University Hospitals Sussex NHS Foundation Trust states that consuming large amounts can have a laxative effect.
Read the ingredients and any serving guidance on the pack if polyols affect which bar you choose.
-
Using a shop listing as the final allergen check
Tesco warns that reformulation can change ingredients, nutrition and allergen information. An online description may therefore differ from the pack in hand.
Check the current packaging, including emphasised allergens and any relevant precautionary statement, before eating the bar.
Relevant brand references
These examples show why a bar’s stated protein or sugar content cannot replace a flavour-specific fat check; they do not imply that every product from a brand has the same nutrition values.
Myprotein
Myprotein describes Lean Layered Protein Bar as having fewer calories and less fat than its original Layered Bar, with 15g protein.
- The comparison identifies a within-range option to examine when lower fat is the main requirement.
- “Less fat” than another bar does not establish 3g fat or less per 100g; check the chosen flavour’s panel against the NHS guide.
Grenade
Grenade lists 20g protein and 1.7g sugar for Peanut Nutter, and 23g protein and 1.5g sugar for White Chocolate Cookie.
- The named flavours provide specific protein and sugar figures to compare with your intended portion.
- Those figures do not establish their total or saturated fat; check the exact bar’s nutrition panel.
PhD
PhD lists 21g protein, 238 calories and 1g sugar for Smart Bar and describes it as a between-meal option.
- The stated per-bar figures can help you consider its portion alongside other snack options.
- They do not answer whether the flavour fits a lower-fat requirement; check total and saturated fat separately.
Barebells
Barebells states that White Salty Peanut has 20g protein and no added sugar. Tesco lists a Cinnamon Bun Soft bar with 16g protein and no added sugar.
- These are distinct bar examples with stated protein figures, not one nutrition profile for the range.
- No added sugar does not establish lower fat. Barebells also notes that its bars contain lactose or may contain traces of it.
Tesco
Tesco lists individual protein bars, including the Barebells Cinnamon Bun Soft bar.
- An individual listing lets you consider a single bar rather than a multipack.
- Tesco warns that formulations and nutrition and allergen information can change; use the current pack for the final check.
Protein bars on Joybuy
These Grenade bars offer chocolate- or sweet-style options for an afternoon break. Their names and pack sizes distinguish the choices below, but do not establish that they are reduced fat: compare the current fat and saturated-fat figures before choosing one for that purpose.
No image available
Grenade Soft Core Double Chocolate Protein Bar, 12 × 50g
The 50g bar format suits a single afternoon portion from a 12-pack. If lower fat is your aim, check this flavour’s total and saturated fat per 100g and per bar; read the current ingredients and allergen information too.
No image available
Grenade Soft Core Golden Caramel Protein Bar, 12 × 50g
This Golden Caramel variant comes as twelve 50g bars. Compare its own fat and saturated-fat figures with the Double Chocolate variant rather than assuming the flavours have identical nutrition values; check the current pack for ingredients and allergens.
No image available
Grenade Soft Core Peanut Butter Protein Bar, 12 × 50g
The Peanut Butter variant is supplied as twelve 50g bars. Check its flavour-specific fat and saturated-fat values for a lower-fat decision, and read the current allergen information if peanuts or other ingredients affect your choice.
No image available
Grenade Oreo Flavour Protein Bar, 4 × 60g
This pack contains four 60g bars, a different per-bar portion from the 50g Soft Core variants above. Compare both per-100g and per-bar fat and saturated fat before deciding whether it fits a lower-fat afternoon break.
Common questions
What counts as low fat on a protein bar label?
The NHS food-label guide sets low fat at 3g fat or less per 100g and low saturated fat at 1.5g or less per 100g. Check both entries, then read the per-bar values for the portion you would actually eat.
Does low sugar mean a protein bar is lower in fat?
No. Sugar and fat are separate nutrition measures, so a low-sugar claim cannot tell you whether the bar meets the NHS low-fat guide or how much fat one bar contains. Compare the fat and saturated-fat entries directly.
Is a smaller bar automatically the lower-fat choice?
No. A smaller portion changes how much you eat, but it does not establish that the product is low fat per 100g. Use the per-100g figures to compare recipes and the per-bar figures to compare the portions you are considering.
Why check sweeteners in a low-sugar bar?
Some bars use polyols such as maltitol. University Hospitals Sussex NHS Foundation Trust notes that large amounts of polyols can have a laxative effect, so read the ingredient list and any guidance on the current pack if this affects your choice.
Which allergen information should I use?
Use the current pack’s ingredients, emphasised allergens and any relevant “may contain” statement. Tesco warns that recipes and allergen information can change, so do not rely solely on an online listing when an ingredient affects your decision.