Wheyprotein.org.uk uses cookies to improve your viewing experience.It's all goodRead More...

Sponsored byGoNutrition

Whey Protein Isolate

What is whey protein isolate?

All whey protein is a by-product of cheese manufacturing.

There are three types of whey protein: whey protein concentrate (WPC), whey protein isolate (WPI) and whey protein hydrolysate (WPH).

If you're interested in learning more about how whey protein is produced, please refer to the FAQ.

Whey protein isolate (WPI) offers a richer, purer quality of protein when compared to a concentrate. Its protein content is marginally higher, it contains fewer calories, carbohydrates and fats, although we're only talking small numbers. Some people, mostly those in the bodybuilding community, swear by the advantages that whey isolate offers over a concentrate. The truth is both fractions are rapidly digesting proteins, so any added benefits will be negligible. That doesn't discount the fact that isolate remains a very popular selling supplement with dedicated fitness enthusiasts, especially those who are lactose intolerant or following a strict low calorie diet. In the bodybuilding world, WPI is a favourite for those cutting body fat. The lactose content in standalone WPI products is typically around 2.5 - 4%.

Due to its lower carbohydrate (lactose) and fat content, WPI is slightly more bio-available and faster at reaching muscles than a concentrate, making it a best choice post-workout. Taking it any other time of the day, except arguably in a pre-workout shake, in our opinion, is a waste. Unless you're following an ultra strict diet, a better through-the-day protein shake would be a mixed blend or even a whey protein concentrate.

Like WPC, WPI is also offered in both unflavoured and flavoured varieties. Unflavoured whey has an average protein content of around 90%. Flavoured variations reduce that by 4 - 7%. Taste-wise, unflavoured WPI is akin to bland watered down milk. Blended in water, the texture is thinner and whiter than plain WPC. The biggest difference between WPI and WPC is in price; WPI has always been more expensive due to its higher production cost. As this description is being written, comparing prices across several of the bulk suppliers, WPI on average costs 30% more than WPC. When you factor in the added marginal benefits, we would argue that a WPC would be a better "overall" option for the majority of people, but there is also the lactose factor to consider, too. Obviously, if lactose is a problem, WPI is the better option.

Would a WPI supplement suit me?

To answer the question adequately, it would really depend on your budget, how dedicated you are to your fitness, your tolerance to lactose, and the added benefits over a WPC. If you're obsessive about calories and maximising the best in the anabolic window post-workout, then WPI should be something to consider. It does contain lactose, albeit in very small quantities. If that's of concern to you, there are other options, including an option by Bulk Powders of an ultra-pure (97%) completely lactose free variant.

The bottom line

If you can afford it and you like the best of the best, give WPI a go.

If you're still not sure, you can find a supplement that will suit your goals with our protein finder.

Show 10 | 25 | 50 | Set products Show products by: Brand Name > Product Name
Bodybuilding Warehouse - Pure Whey Protein Isolate 95

Pure Whey Protein Isolate 95

Bodybuilding Warehouse

2.2 lbs / 1 kg Bag

Product Type:Powder

Available Flavours:Italian Vanilla Milkshake, Strawberry & Cream, Unflavoured

Brand's Website:www.bodybuildingwarehouse.co.uk

    • Ultra lean whey isolate source
    • Virtually carb, lactose & fat free
    • High in BCAAs
    • 95% pure protein isolate
    • Maintain a precise levels of carbs post-workout
Bodybuilding Warehouse - Pure Whey Protein Isolate 95

Pure Whey Protein Isolate 95

Bodybuilding Warehouse

4.41 lbs / 2 kg Bag

Product Type:Powder

Available Flavours:Italian Vanilla Milkshake, Strawberry & Cream, Unflavoured

Brand's Website:www.bodybuildingwarehouse.co.uk

    • Ultra lean whey isolate source
    • Virtually carb, lactose & fat free
    • High in BCAAs
    • 95% pure protein isolate
    • Maintain a precise levels of carbs post-workout
Bodybuilding Warehouse - Pure Whey Protein Isolate 95

Pure Whey Protein Isolate 95

Bodybuilding Warehouse

8.82 lbs / 4 kg Bag

Product Type:Powder

Available Flavours:Italian Vanilla Milkshake, Strawberry & Cream, Unflavoured

Brand's Website:www.bodybuildingwarehouse.co.uk

    • Ultra lean whey isolate source
    • Virtually carb, lactose & fat free
    • High in BCAAs
    • 95% pure protein isolate
    • Maintain a precise levels of carbs post-workout
GoNutrition - GN Whey Isolate 90

GN Whey Isolate 90

GoNutrition

2.2 lbs / 1 kg Bag

Product Type:Powder

Available Flavours:Blueberry Cheesecake, Chocolate Peppermint Snaps, Jammie Biscuit, Key Lime Pie, Maple Syrup & Pancake, Rhubarb & Custard Sweets, Simply Banana, Strawberries & Whipped Cream, Triple Chocolate, Turkish Delight, Unflavoured, Vanilla Ice Cream

Brand's Website:www.gonutrition.com

    • Ultra premium quality undenatured WPI
    • Virtually carb and fat free
    • Perfect for cutting / managing carb intake
    • All natural - no sweeteners (unflavoured only)
    • Ideal post-workout and pre-breakfast choice
    • Only 0.2% lactose per serving
    • Great choice of exotic flavours
GoNutrition - GN Whey Isolate 90

GN Whey Isolate 90

GoNutrition

4.41 lbs / 2 kg Bag

Product Type:Powder

Available Flavours:Blueberry Cheesecake, Chocolate Peppermint Snaps, Jammie Biscuit, Key Lime Pie, Maple Syrup & Pancake, Rhubarb & Custard Sweets, Simply Banana, Strawberries & Whipped Cream, Triple Chocolate, Turkish Delight, Unflavoured, Vanilla Ice Cream

Brand's Website:www.gonutrition.com

    • Ultra premium quality undenatured WPI
    • Virtually carb and fat free
    • Perfect for cutting / managing carb intake
    • All natural - no sweeteners (unflavoured only)
    • Ideal post-workout and pre-breakfast choice
    • Only 0.2% lactose per serving
    • Great choice of exotic flavours
GoNutrition - GN Whey Isolate 90

GN Whey Isolate 90

GoNutrition

9.92 lbs / 4.5 kg Bag

Product Type:Powder

Available Flavours:Blueberry Cheesecake, Chocolate Peppermint Snaps, Jammie Biscuit, Key Lime Pie, Maple Syrup & Pancake, Rhubarb & Custard Sweets, Simply Banana, Strawberries & Whipped Cream, Triple Chocolate, Turkish Delight, Unflavoured, Vanilla Ice Cream

Brand's Website:www.gonutrition.com

    • Ultra premium quality undenatured WPI
    • Virtually carb and fat free
    • Perfect for cutting / managing carb intake
    • All natural - no sweeteners (unflavoured only)
    • Ideal post-workout and pre-breakfast choice
    • Only 0.2% lactose per serving
    • Great choice of exotic flavours
Gym Fuel - Whey Protein 90

Whey Protein 90

Gym Fuel

3 x 2 lbs / 908 g Bags

Product Type:Powder

Available Flavours:Unflavoured

Brand's Website:www.gymfuel.co.uk

    • Premium quality pure whey protein isolate
    • Virtually carb and fat free
    • Rapidly digested - perfect for post-workout
    • 90% pure protein
    • A rich source of essential amino acids including BCAA's
Muscletech - Platinum 100% Whey

Platinum 100% Whey

Muscletech

5.03 lbs / 2.28 kg Tub

Product Type:Powder

Available Flavours:Gourmet Milk Chocolate, Peanut Butter Chocolate Twist, Strawberry Shortcake, Vanilla Ice Cream

Brand's Website:www.muscletech.com

    • Cold-pressed microfiltrated whey protein isolate
    • Added whey peptides
    • 24 grams of protein - 5.5 grams of BCAAs & 4 grams of glutamine
    • Mixes instantly in shaker cups
Myprotein - Impact Native Whey 95

Impact Native Whey 95

Myprotein

2.2 lbs / 1 kg Bag

Product Type:Powder

Available Flavours:Chocolate Smooth, Strawberry Cream, Unflavoured, Vanilla

Brand's Website:www.myprotein.com

    • Premium quality whey protein isolate
    • Sourced directly from milk
    • Increased bio-availability
    • All natural with no sweeteners (unflavoured only)
    • Superior amino acid profile
    • Native protein fractions
    • Higher levels of leucine and cystine
Myprotein - Impact Native Whey 95

Impact Native Whey 95

Myprotein

5.51 lbs / 2.5 kg Bag

Product Type:Powder

Available Flavours:Chocolate Smooth, Strawberry Cream, Unflavoured, Vanilla

Brand's Website:www.myprotein.com

    • Premium quality whey protein isolate
    • Sourced directly from milk
    • Increased bio-availability
    • All natural with no sweeteners (unflavoured only)
    • Superior amino acid profile
    • Native protein fractions
    • Higher levels of leucine and cystine
Sign up for Personal Offers
Learn more
Save on Whey Protein
Whey Protein Discount Codes

We update coupons & deals daily, so check the site regularly to save money on your whey protein supplements.

Benefit By Staying Connected

Fact: Protein isn't cheap. Stay connected through Facebook and Twitter and we'll notify you about any coupons, offers or bulk deals on whey protein.

     

If you're in the supplement business, or you're involved in health and fitness, emarketing or affiliate marketing, please look us up on LinkedIn. We welcome connections from all over the world.

www.wheyprotein.org.uk is a trading name of Supplement Marketing, a privately owned company owned and operated by Mike Clark.

Brand logos, store logos and product images may be subject to copyright. No copyright infringement is intended. For more information on logo and product copyright, please click here.

Thanks for signing up to the email list

An email has just been dispatched to my@email.com

You will need to confirm receipt of it within the next 7 days otherwise you won't be added to the database.

The program will go live within the next several months.
We'll update you with more information as we get closer to launch.

We're sorry to see you go...

my@email.com has been removed from the email list.

Thanks for signing up to the email list

my@email.com has been confirmed.

We're just updating our database. Please check again in a minute.Don't go anywhere!