Spend £80 on this brand for Free Delivery. Order before 4pm for same-day dispatch.
Standard Delivery2-4 Working Days
£4.99
DPD Next DayOrder by 4pm Mon-Fri
£5.99
14 Day Returns
If you are not 100% satisfied with your purchase, you can return the product and get a full refund or exchange.
Payment & Security
100% Secure Checkout
Encrypted with 256-bit SSL security
Buy Now, Pay Later
Pay in 3 interest-free instalments of £6.33. No fees.
Accepted Payment Methods
We offer flexible payment options including Buy Now, Pay Later with Klarna and Clearpay. We also accept all major UK credit & debit cards
Food supplements should not be used as a substitute for a varied and balanced diet and healthy lifestyle. If you are pregnant, breastfeeding, taking medication, or under medical supervision, consult your doctor before use. Do not exceed the recommended daily intake. Store out of reach of children.
Optimum Nutrition High Protein Bar 65g
SAVE 24%
1
Chocolate Brownie Crunch
Marshmallow Crunch
Nutty Chocolate Caramel
Optimum Nutrition High Protein Bar: 20g protein in a portable snack
Each 65g Optimum Nutrition High Protein Bar delivers 20g of protein from a soy and whey blend at 213kcal, with 16g of carbohydrates, 6.7g of fat and 1.8g of sugar. The fibre content is 13g per bar - high for the category - from the combination of dark chocolate coating and crisped pieces. The 10-bar pack provides approximately two weeks of daily use.
The dual-source protein blend uses soy protein isolate and whey protein for complementary amino acid profiles - soy provides a full essential amino acid spread including methionine and lysine, while whey contributes fast-absorbing leucine-rich fractions. The 13g fibre per bar contributes to satiety between meals, which is practically useful for anyone managing daily protein intake away from the kitchen where the temptation to under-eat is highest.
At 20g protein for 213kcal the bar sits at a decent protein density for the format - comparable to leading competitors in the category. The 65g size is a meaningful bar rather than a small snack portion, which matters for post-training recovery when appetite is suppressed and a small bar does not register. The dark chocolate coating with crisped pieces gives genuine texture rather than the compressed-chalk profile of cheaper high-protein bars.
Built for commuters, gym-goers and anyone who needs portable protein when a shaker is not practical - post-workout when food is hours away, between meetings, or as a desk-drawer reserve. Not a low-calorie snack at 213kcal. Contains milk, soy, wheat and gluten. Not suitable for individuals with nut allergies - check label for full allergen information.
Value alternative: XL Nutrition XTRA Whey 2kg — £34.99 for 66 servings at just £0.53 each (21g protein, 122kcal per 30g scoop). That's roughly 72% less per serving than this product's £1.90/serving cost.
Key Benefits
20g Protein On the Go
20g of protein per bar in a format that needs no preparation - ideal for post-workout recovery, between meetings, or as a high-protein snack anywhere and at any time.
213kcal Per Bar
Lower in calories than most chocolate bars of the same size, the High Protein Bar gives you a meaningful protein hit without a large calorie cost.
Portable & Convenient
Individually wrapped bars fit easily into a gym bag, desk drawer, or bag. No powder, no shaker, no water - just open and eat whenever you need protein.
Snack Replacement
Replace calorie-dense snacks with a bar that delivers 20g of protein, helping you stay on track with protein goals during busy days when cooking or prepping isn't possible.
Who is the Optimum Nutrition High Protein Bar best for?
The Optimum Nutrition High Protein Bar is best for lifters, commuters and active adults who need a portable protein top-up away from a kitchen. Each 65g bar delivers 20g of protein and 13g of fibre, so it works as a post-workout snack, a between-meal hit or a shake replacement when a shaker is not practical.
When should I eat the Optimum Nutrition High Protein Bar?
Eat the Optimum Nutrition High Protein Bar whenever you need to top up protein during the day. The most common slots are post-workout, mid-afternoon between meals, or as a desk-drawer option when lunch runs late. One to two bars per day fits most routines without crowding out whole-food meals.
How much sugar is in the Optimum Nutrition High Protein Bar?
Each Optimum Nutrition High Protein Bar contains 1.8g of sugar per 65g bar. Most of the bar's 16g of carbohydrates come from polyols (11g) rather than sugar, with 13g of fibre adding the filling factor. That makes it a useful pick if you want something sweet without a heavy sugar load.
Protein20gPer 65g bar
Calories213kcalPer bar
Carbs16gPer bar
Fat6.7gPer bar
Detailed Breakdown
Nutrient
Per 65g
Energy
891 kJ / 213 kcal
Fat
6.7g
Of Which Saturates
5.3g
Carbohydrate
16g
Of Which Sugars
1.8g
Of Which Polyols
11g
Fibre
13g
Protein
20g
Salt
0.8g
Ingredients & Allergens
Protein crisps (31%) (soy protein isolate, starch, salt), dark chocolate flavour coating (26%) (sweeteners (isomalt, sucralose), palm and palm kernel oil, fat reduced cocoa powder, emulsifiers (soy lecithin, polyglycerol polyricinoleate)), fructooligosaccharides, polydextrose, milk proteins (whey protein isolate (milk), whey protein concentrate (milk), milk protein concentrate, emulsifier (soy lecithin)), isomaltooligosaccharide, humectant (glycerol), flavourings (milk), fat reduced cocoa powder, sweetener (sucralose), antioxidant (tocopherol-rich extract).
Allergen Info
Contains milk and soy. May contain traces of gluten, egg, nuts and peanuts.
Frequently Asked Questions
Who is the Optimum Nutrition High Protein Bar best for?
The Optimum Nutrition High Protein Bar is best for lifters, commuters and active adults who need a portable protein top-up away from a kitchen. Each 65g bar delivers 20g of protein and 13g of fibre, so it works as a post-workout snack, a between-meal hit or a shake replacement when a shaker is not practical.
When should I eat the Optimum Nutrition High Protein Bar?
Eat the Optimum Nutrition High Protein Bar whenever you need to top up protein during the day. The most common slots are post-workout, mid-afternoon between meals, or as a desk-drawer option when lunch runs late. One to two bars per day fits most routines without crowding out whole-food meals.
How much sugar is in the Optimum Nutrition High Protein Bar?
Each Optimum Nutrition High Protein Bar contains 1.8g of sugar per 65g bar. Most of the bar's 16g of carbohydrates come from polyols (11g) rather than sugar, with 13g of fibre adding the filling factor. That makes it a useful pick if you want something sweet without a heavy sugar load.
Love these bars - so handy to keep in my bag when on the go. Macro friendly to keep you on track.
J
Jordan
Great tasting product, will definitely buy again!
J
Joanna
The best supplier and protein bars highly recommend
J
Joanna D.
The best protein bars I ever had ! Speedy delivery all good
K
Keith B.
Just about the best protein
Just about the best protein bar I've ever tasted (and I've tasted a lot!). A little high in calories, but filling and lovely.
R
Rob A.
I am very impressed with the taste & quality of this item! Definitely worth the purchase price! A nice taste bar, thanks! :+1:
J
Jugdeep G.
Great taste, and in my
Great taste, and in my experience, one of the best protein bars I’ve ever tried. I have cut out all sugar from my diet and I use this protein bar as a treat as although it’s sugar-free it still contains sweeteners - still taste so good you can’t tell it doesn’t contain any added sugar!
J
Jason Fowell
Tasty
One of the best tasting protein bars on the market. Plus the delivery was super quick.
J
Jason
One of the best tasting
One of the best tasting protein bars on the market. Plus the delivery was super quick.