Whey.bio
Independent reviews of the world’s leading whey protein powders.
No sponsorships Evidence‑based fitness Affiliate‑supported

Find the right whey protein powder for your body – without the hype.

We analyse ingredients, protein quality, absorption and price‑per‑serving so you don’t have to. Compare top whey protein powders in one place.

  • See which whey powders work best for muscle gain, recovery or daily maintenance.
  • Understand the difference between whey concentrate, isolate and hydrolysate.
  • Spot red flags like hidden fillers, high sugar content and poor amino profiles.
Our mission: help you pick a safe, effective whey protein – and avoid wasting money on marketing noise.

Top whey protein powders – side by side

Ratings are based on protein quality, ingredient list, mixability, flavour range and price per serving. We may earn a commission when you buy via our links – at no extra cost to you. Want to go deeper? Read our guides on whey for beginners, whey for muscle gain, whey for fat loss and when to take whey protein.

Shop Product Best for Type Key details Our rating Price*
View offer Optimum Nutrition Gold Standard 100% Whey
Best all‑round whey
Most lifters · everyday use Whey concentrate + isolate ~24 g protein per serving, low sugar, widely available.
Huge flavour range, mixes easily with water or milk.
★★★★★
4.8 / 5 formula score
~$35
≈ $1.00 per serving
View offer Dymatize ISO100 Hydrolyzed Whey Protein
Best for cutting & digestion
Lactose‑sensitive · cutting phases Hydrolyzed whey isolate Very low carbs and fat, fast absorption.
Ideal around workouts or when aiming for lean phases.
★★★★☆
4.6 / 5 formula score
~$45
≈ $1.50 per serving
View offer MyProtein Impact Whey Protein
Best budget whey
Students · high‑volume users Whey concentrate Good value per serving, many flavour options.
Great if you consume a large volume monthly.
★★★★☆
4.3 / 5 formula score
~$30
≈ $0.80 per serving
View offer Orgain Organic Plant Based Protein Powder
Best for plant‑based diets
Vegans · dairy‑free · sensitive gut Pea, brown rice & chia Organic ingredients, no dairy, ~21 g protein per serving.
Slightly thicker texture – ideal in smoothies or oats.
★★★★☆
4.4 / 5 formula score
~$35
≈ $1.20 per serving

How to choose the right whey protein powder

More grams isn’t always better – and the type of whey matters. Consider your diet, digestion and training routine before you buy.

  • Check your diet first: If you already consume plenty of protein from whole foods, you might need less powder.
  • Concentrate vs isolate vs hydrolysate: Whey isolate is highly filtered, often fewer carbs/lactose; concentrate is more affordable.
  • Look beyond hype: Ignore marketing buzzwords – focus on protein per serving, amino acid profile and quality.
  • Start simple: A trusted flavour from a reputable brand is often enough.

Whey for muscle gain vs fat loss

The same high‑quality whey can support both bulking and cutting – the difference lies in your training and caloric intake.

  • Muscle gain: Use whey as part of a small calorie surplus and ~1.6–2.2 g protein per kg bodyweight.
  • Fat loss: Keep protein high to preserve muscle mass, while overall calories are lowered.
  • Everyday health: A 20–30 g whey shake can fill gaps when you’re busy.

When should I take whey protein?

Timing is less important than total daily protein intake – but convenient timings help.

  • Post‑workout: A shake within 1–2 hours supports recovery.
  • Between meals: Helps you meet your daily target without large portions.
  • Before bed: A slower‑digesting blend or casein may support overnight recovery but whey is still useful.

Who should be careful with whey protein?

Whey is safe for most healthy people, but some conditions require extra caution.

  • Individuals with milk allergy or lactose intolerance.
  • People with serious kidney or liver disease – consult your doctor first.
  • Users of medications or with dietary restrictions where protein intake must be monitored.

Whey Protein FAQ

How much whey protein do I need per day?

Many active people benefit from around 1.6–2.2 g protein per kg of bodyweight per day.

Is whey protein better than plant‑based protein?

Whey is digested more quickly and has higher leucine content, making it especially effective for muscle recovery in many scenarios.

Can I use whey protein without training?

Yes—but the biggest benefits come when it’s combined with resistance training and nutrition.

Is whey protein safe for my kidneys?

For most healthy individuals with normal kidney function, whey protein supplementation has not been shown to be harmful when used appropriately.

*Prices and availability are approximate and may change at any time. Always check the latest price on the retailer’s website.

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This page is for general information only and is not medical or personalised dietary advice. Always speak to your own doctor or dietitian if you have health conditions or special dietary needs.