Whey Protein Isolate — Chocolate 1kg
90% protein whey isolate — ultra-filtered for low fat, low lactose, high purity. 25g protein per serving. No artificial colours.
What does optimal health cost per day?
Less than a coffee top-up. Optimal nutrition for 58p/day — the most cost-effective investment in your health.
Free Vitamin C 1000mg with orders over £40
While stocks last · auto-added at checkout
Supply size
Most customers reorder this monthly. Each pack lasts ~30 days.
Subscribe and save 15% — never run out. Switch to subscription
Your daily health investment
£1.00
per day
£7.00
per week
£29.99
per month
Less than a daily coffee — for daily nutritional support from Whey Protein.
Auto-delivered. No minimum term. Cancel any time.
Price locked forever — we never raise your subscription price. Cancel any time, no fees.
Bundle and save up to 20%
Add 2+ products to your stack — discount applied automatically at checkout.
Not ready to commit? Try a 7-day sample pack
Only £2.99 — credited toward your first full order
Group buy — save up to 30%
Limited spotsPool orders with other Whey buyers. The more people join, the more everyone saves. Next group buy runs when we hit 50 registrations.
📦 What to expect when it arrives
Premium box
Double-sealed. No cheap poly bags — every Medibro order ships in a quality box.
Amber glass
UV-protective amber glass preserves potency. Satisfying click-lid seal.
Little extras
Every first order includes a usage guide and a surprise freebie — see what you get.
Start today
Take your first dose the day it arrives — don't wait for a 'perfect moment'.
Your 30-day journey starts today
Future you will look back on this moment.
Based on typical customer reports. Individual results vary. Backed by our 30-day guarantee.
Premium packaging, inside and out
Amber glass jar
Blocks UV degradation, no plastic leaching
100% recyclable
Jar, cap, and box are fully kerbside recyclable
No artificial fillers
No magnesium stearate, silicon dioxide, or titanium dioxide
- Free UK delivery over £35
- 14-day hassle-free returns
- Secure checkout, audit-logged
- Manually compliance-reviewed
Order dispatched, tracking info sent. Most customers take their first dose the day it arrives.
Research shows it takes ~14 days to anchor a new habit. By now, most customers have found their ideal time of day.
At 8 weeks, customers report the strongest improvements. Consistency is everything with nutritional supplements.
Over 90% of Medibro subscribers are still on the same product at 3 months — the clearest signal a supplement is working.
Seasonally relevant now
July: Peak activity season — optimise performance with the right stack
Whey protein isolate is filtered to remove most of the fat and lactose, yielding 90%+ protein content. This makes it ideal for those who are lactose-sensitive or tracking macros carefully.
Our chocolate flavour uses natural cocoa and is sweetened with stevia — no sucralose, no artificial colours.
Benefits
- ✓Muscle growth
- ✓Recovery
- ✓Lean protein
- ✓Low fat
- ✓Low lactose
Dosing Guide
How to take Whey Protein Isolate — Chocolate 1kg
Mix 30g (1 scoop) in 200–250ml water or milk. Best consumed within 30 minutes post-workout, or between meals.
Always read the label. Consult a healthcare professional if you have any medical conditions or take prescription medication.
Quality & transparency
How we compare
Medibro vs. typical high-street / marketplace alternatives
| Feature | Medibro | Others |
|---|---|---|
| Ingredient quality | Premium grade | Generic grade |
| Third-party tested | ||
| No unnecessary fillers | ||
| UK manufactured | ||
| 30-day guarantee | ||
| Free UK shipping from £35 |
Customers like you also explore
⏰ How to take for best results
Best time
With food, once daily
Take with
Water or a meal
Avoid with
No specific interactions — check with your GP if on medication
Consistency is key. Take at the same time each day to build habit and maximise benefit.
Frequently asked questions
Find your perfect supplement stack
Answer 4 quick questions and get a personalised stack built around your goals, health history, and lifestyle.
Medibro Quality Score™
Independent assessmentPurity
92
Overall
out of 100
Potency
Value
How we compare
Medibro | Budget | Pharmacy | |
|---|---|---|---|
3rd-party COA testing | |||
Premium forms (glycinate, KSM-66, TG omega) | |||
Full ingredient transparency | |||
UK pharmacist reviewed | |||
No proprietary blends | |||
30-day money-back guarantee | |||
Eco-friendly packaging |
Comparison reflects general market observations. Specific brands may vary.
What outcomes matter most to you?
Founded by a UK pharmacist
“After 12 years dispensing prescriptions, I was frustrated by the gap between expensive supplements and what the evidence actually supports. Medibro was built to source properly — clinical doses, verified purity, fair prices.”
— MPharm, GPhC registered · Medibro founder
Every formula is reviewed by our in-house pharmacy team before launch.
Stack Synergies
Science-backed pairings for better results
Protein + creatine produces greater lean mass gains than either alone — the foundational strength stack
Leucine directly triggers muscle protein synthesis — amplifies the anabolic signal from protein intake
Magnesium supports muscle protein synthesis and reduces exercise-induced muscle damage
Synergies based on published nutritional science. Individual results may vary. Always consult a healthcare professional before combining supplements.
Complete your stack
Customer reviews
- ★★★★☆Tom C.08/05/2026Great protein, mixes perfectly
Very impressed with the quality of this isolate. Blends smoothly, no grittiness, good taste. The protein content per serving is accurate and the digestibility is excellent.
- ★★★★★Jake R.07/05/2026Excellent quality protein
The isolate processing means it's low in lactose, which is important for me as I'm slightly lactose intolerant. No digestive issues whatsoever. Mixes perfectly and tastes great.
- ★★★★★Chris D.05/05/2026Excellent muscle recovery
I train twice a day occasionally and recovery nutrition is critical. This protein has the fast absorption characteristics of a good isolate — I feel it working quickly after hard sessions.
- ★★★★★Max R.16/04/2026My favourite protein so far
I cycle through different proteins to avoid flavour fatigue. This chocolate whey isolate is genuinely the best-tasting I've come across. The quality is clearly high — no fillers, clean ingredient list.
- ★★★★★Oliver W.07/04/2026Seriously impressed
Bought this on a recommendation and I'm very glad I did. The protein content is accurate, the taste is excellent, and the isolate means no bloating or discomfort post-workout. A genuinely premium product.
- ★★★★☆Dave W.04/04/2026Solid daily protein supplement
Reliable quality, good taste, mixes easily. Does exactly what protein powder should do — hits my daily protein targets without drama. The 1kg size is a good starting amount.
- ★★★★★Holly B.04/04/2026Perfect macros for my fitness goals
I'm cutting for competition and this protein fits my macros perfectly — high protein, very low carbs and fat. The taste makes it easy to hit my daily protein targets without dreading the shake.
- ★★★★★Sam K.02/04/2026Clean macros, great flavour
High protein per serving, low carbs and fat. Exactly what you want from a whey isolate. The chocolate flavour is rich without being overwhelming. My go-to post-workout shake.
- ★★★★★Alex N.28/03/2026Smooth, rich chocolate flavour
This sets the standard for chocolate protein flavour. Not artificial, not too sweet, just properly good. Mixes in 10 seconds with a shaker. Excellent macros and good value for a proper isolate.
- ★★★★★James F.26/03/2026Quality you can taste
You can immediately tell this is a higher quality product than the cheaper alternatives. The texture is smoother, it mixes better, and the taste is genuinely enjoyable rather than something you endure.
- ★★★★★Ryan S.26/03/2026Best protein I've tried in this price range
I've used many proteins over 5 years of training. This Medibro whey isolate stands out for its purity, mixability and taste. The chocolate flavour is excellent — will definitely reorder.
- ★★★★★Mike P.24/03/2026My new post-workout staple
Switched to this from a more expensive brand. Same quality, better taste, lower price. The chocolate flavour is deep and genuine, not artificial. Very happy with this purchase.
- ★★★★★Liam T.02/03/2026Top quality at a reasonable price
Premium whey isolate at a price that makes sense. High protein content, good amino acid profile, excellent mixability. The chocolate flavour is one of the best I've tried.
- ★★★★★Ben A.02/03/2026Best-tasting protein I've used
The chocolate flavour is genuinely good — not the sickly sweet artificial taste you get from cheaper brands. Mixes completely smooth with just water and no clumping at all. Macros are excellent.
- ★★★★☆Sophie M.23/02/2026Good protein for the price
I was looking for a clean protein without a long ingredient list. This delivers — whey isolate, natural chocolate flavour, minimal additives. The mixability is excellent and the taste is genuinely good.
- ★★★★★Jack B.Verified buyer21/02/2026Best tasting protein I've found
Tried loads of protein powders. This is the best tasting chocolate without artificial sweeteners. The stevia sweetness is subtle and natural. 25g protein per serving is excellent.
- ★★★★★Harry T.20/02/2026Pure isolate, premium taste
Whey isolate is the cleanest form of protein you can get. This one has the amino acid profile, digestibility and taste to match. No compromise on quality here.
- ★★★★☆George B.15/02/2026Good quality, would recommend
Easy to mix, pleasant chocolate taste, good macros. Everything you need from a protein supplement. The isolate quality is clearly higher than whey concentrate products.
- ★★★★★Maria C.Verified buyer31/01/2026Perfect post-workout shake
Mixed with almond milk this is genuinely delicious. No bloating which I always get with cheap whey concentrate. The isolate quality is worth the price.
- ★★★★☆Callum T.Verified buyer27/11/2025Great macros, good taste
90% protein, minimal fat and carbs, natural sweetening. This is everything I want in a protein powder. Slightly pricey but worth it for the quality.
Questions & answers
Loading…
Have you tried this product?
Log in to write a review