Question 1

How does Whey Protein Isolate taste?

Accepted Answer

WPI is flavoured and is generally considered to have a pleasant taste.

Question 2

What is WPI made from?

Accepted Answer

Whey Protein Isolate is a protein derived from milk.

Question 3

Are WPI samples available?

Accepted Answer

Yes, you can request a free sample of Whey Protein Isolate from our  Free Sample  page.

Question 4

How is Bulk Nutrients' WPI packaged?

Accepted Answer

Bulk Nutrients' Whey Protein Isolate is packaged in resealable 1kg pouches.

Question 5

Can I purchase WPI in smaller sizes?

Accepted Answer

Yes - WPI is also available in single-serve sachets which we call  WPI Sample Packs .

Question 6

Is the packaging for this product recyclable?

Accepted Answer

In theory yes, but not in all council areas right now. The REDcycle program has been discontinued, and the industry is working together to find a solution to continue recycling soft plastics. For now, we recommend checking with your local council, but most require you to put the packaging in your regular landfill bin. The included scoop can be recycled as hard plastic in your local council pickup. For more information about what Bulk is doing to improve sustainability,  check this article .

Question 7

Can I receive a discount buying more than one of this product at once?

Accepted Answer

Absolutely! Price breaks for Whey Protein Isolate begin when you purchase 2 units of any flavour. Just add more than that to your cart to see the savings.

Question 8

Does Bulk do a Natural version of WPI?

Accepted Answer

We sure do! Our  Natural Whey Protein Isolate  is one of the cleanest and most pure whey proteins available on the market. Bulk Nutrients’ Natural WPI comes from grass fed cows and is 100% hormone free so you can be confident in the protein you’re using. Natural WPI also contains virtually no lactose, and is extremely low in both fat and carbs, while maintaining 91% protein per serve. We use natural flavours and stevia to sweeten to ensure our Natural WPI remains all natural.

Question 9

Does Bulk do a WPI safe for use in tested sports?

Accepted Answer

Absolutely! We’re really proud that two flavours of our WPI are regularly HASTA tested, and are  HASTA certified  to support natural athletes and competitors with their training and recovery. Currently we range our  HASTA WPI  in both Vanilla and Chocolate flavours and they’re used by a range of  our ambassadors and sporting teams  we work with.

Question 10

Why is Whey Protein Isolate the best choice?

Accepted Answer

Whey Protein Isolate has the highest biological value of any protein source and WPI is the most processed and purest form of Whey Protein. WPI contains around 1% fats, 1% carbohydrates and around 90% of protein. As it is rapidly absorbed, it is ideal post workout, especially when training in a fasted state.

Question 11

Is Whey Protein Isolate lactose free?

Accepted Answer

Whey Protein Isolate contains small amounts of lactose which usually means it is suitable for lactose sensitive individuals. People with complete lactose malabsorption may still have trouble tolerating the lactose in whey protein isolate. Comparatively though WPI contains very little lactose, at approximately 0.3 grams per serve it has forty times less lactose than a glass of milk.

Question 12

Does Whey Protein Isolate contain gluten?

Accepted Answer

Gluten is not naturally occurring in any of the ingredients in our Whey Protein Isolate, though we do process other gluten containing ingredients in our facility.

Question 13

How many serves of WPI should I have each day?

Accepted Answer

The answer here will depend on your weight, energy levels and goals. Most athletes and active people aim to consume 2 grams of protein per kilogram of bodyweight per day. For an 80kg person, this equals 160 grams of protein. Two WPI shakes a day would contribute 52g of protein to this total, leaving approximately 108 grams of protein to be consumed through general food sources. Protein from protein shakes should be one of multiple protein sources you consume, not the only one.

Question 14

What is the standard dose of WPI powder?

Accepted Answer

30 grams is the generally accepted standard dose of WPI protein powder, as this yields between 25 and 28 grams of pure protein.

Question 15

How long after a workout should I have WPI?

Accepted Answer

For optimal recovery and muscle growth, it’s generally recommended to take Whey Protein Isolate within 20-60 minutes after exercise.

Question 16

Why is WPI better than eating tuna, meat or drinking milk?

Accepted Answer

Like other powdered protein sources, WPI is great value for money and can be very convenient. With a long shelf life (usually up two years), WPI is extremely stable and can be stored, carried and consumed easily unlike a tin of tuna or steak. WPI contains only trace amounts of fats and carbohydrates, as opposed to most high protein foods which contain these in higher amounts.

Question 17

How soon should I drink WPI after mixing it with water?

Accepted Answer

While WPI is very stable in powdered form this changes when mixed with water. Once mixed with water, WPI should be consumed within an hour. It can last more than 24 hours once blended with water if refrigerated.

CHOCOLATE BASED FLAVOURS NUTRITION INFORMATION
Servings per 1kg package: 33Serving size: 30g
	Average Quantity Per Serving	Average Quantity Per 100g
Energy (kj)	484	1,612
Protein (g)	25.6	85.5
Fats(g)	0.5	1.6
(saturated) (g)	0.3	1.1
Carbohydrates (g)	1.3	4.5
(sugars) (g)	0.3	1.0
Sodium (mg)	55	182.8

VANILLA NUTRITION INFORMATION
Servings per 1kg package: 33Serving size: 30g
	Average Quantity Per Serving	Average Quantity Per 100g
Energy (kj)	481	1,602
Protein (g)	26.6	88.5
Fats(g)	0.3	1.0
(saturated) (g)	0.2	0.7
Carbohydrates (g)	0.9	2.9
(sugars) (g)	0.2	0.8
Sodium (mg)	54	179

BANANA NUTRITION INFORMATION
Servings per 1kg package: 33Serving size: 30g
	Average Quantity Per Serving	Average Quantity Per 100g
Energy (kj)	481	1,604
Protein (g)	26.6	88.8
Fats(g)	0.3	1.0
(saturated) (g)	0.2	0.8
Carbohydrates (g)	0.8	2.7
(sugars) (g)	0.2	0.7
Sodium (mg)	54	179

CHOC PEANUT NUTRITION INFORMATION
Servings per 1kg package: 33Serving size: 30g
	Average Quantity Per Serving	Average Quantity Per 100g
Energy (kj)	483	1,611
Protein (g)	25.2	84.0
Fats(g)	0.5	1.6
(saturated) (g)	0.3	1.1
Carbohydrates (g)	1.8	6.0
(sugars) (g)	0.3	1.0
Sodium (mg)	54	179

COOKIES & CREAM NUTRITION INFORMATION
Servings per 1kg package: 33Serving size: 30g
	Average Quantity Per Serving	Average Quantity Per 100g
Energy (kj)	482	1,607
Protein (g)	26.6	88.5
Fats(g)	0.3	1.0
(saturated) (g)	0.2	0.7
Carbohydrates (g)	0.9	3.0
(sugars) (g)	0.4	1.4
Sodium (mg)	54	179

TYPICAL WHEY PROTEIN ISOLATE AMINO ACID PROFILE
Servings per 1kg package: 33Servings size: 30g
	Average Quantity Per Serving	Average Quantity Per 100g
Alanine (mg)	1,379	4,597
Arginine (mg)	726	2,420
Aspartic Acid (mg)	3,023	10,077
Cysteine (mg)	967	3,223
Glutamic Acid (mg)	4,257	14,190
Glycine (mg)	435	1,450
Histidine (mg)	484	1,613
Isoleucine (mg)	1,524	5,080
Leucine (mg)	3,459	11,530
Lysine (mg)	2,709	9,030
Methionine (mg)	580	1,933
Phenylalanine (mg)	919	3,063
Proline (mg)	1,088	3,627
Serine (mg)	1,088	3,627
Threonine (mg)	1,282	4,273
Tryptophan (mg)	580	1,933
Tyrosine (mg)	1,016	3,387
Valine (mg)	1,354	4,513

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