Use Code "REFUEL" for 10% OFF!*
Days
Hours
Mins
Secs

Back to product overview

OPTIMUM NUTRITION GOLD STANDARD 100% ISOLATE Reviews

4.85/5 based on 127 reviews
5 star
(116)
4 star
(9)
3 star
(2)
2 star
(0)
1 star
(0)

Overall Rating

9.7 /10

127 Ratings

Average Flavour Rating

9.6 /10

5 Flavours

Top Rated Flavour

10 /10

Chocolate Bliss

Write Review
5/5
I bought the vanilla wey as a recommendation and I was surprise. Taste really good. I use do make my smoothie in the mornings.
5/5
Good taste
5/5
Recently swapped my pp to Optimum Nutrition. Love the flavour! Won't go back to what I was previously using. Great value for money and always fast shipping with Sprint Fit
4.5/5
This protein is amazing, it’s the only one (and we have tried many!!) that meets my husbands nutritional needs but doesn’t give him awful gas!! Such a win!
5/5
Great stuff, used for months now. Go for the chocolate though, easy to mix and good taste even with water.
5/5
Very good, I like that it’s low in sugar and fat. I put it into my frozen banana, almond milk and Greek yogurt smoothie. It gives me energy and keeps me full all morning. The flavour is great too, it tastes better than other protein powders out there.
5/5
This is my GO-TO protein. I know it's more expensive but the flavour is great (not too sweet), the ingredients are great and the texture is good (not like with other protein powders).
5/5
First time purchasing this brand protein powder based on reviews I had read and it did not dissapoint! Best tasting protein powder I have tried. I mix with water and is very smooth, dissolves well without any lumps and tastes absolutely delicious (chocolate bliss)
4.5/5
Well-made product, easy to dissolve and doesn't taste like cardboard...
5/5
Didn’t exactly know what I wanted but really pleased with this product. Ticks all the boxes and good flavour
5/5
Tastes really nice, isn't over powering but isn't subtle enough to where you can't taste it at all.
5/5
Absolutely amazing. Love the taste not overly strong.
5/5
Love this protein powder, tastes nice, blends really well and is not gritty or chalky.
4.5/5
Initially wanted to get a big size but this is perfect for a beginner/tester size! It fits at my desk so I can keep it at work, not massively oversized tub and you pay for what you get - great quality and good bang for buck :)
4.5/5
It was a great product to build their muscle and energy great
5/5
Tastes great, good consistency
4.5/5
Good flavour!
4/5
This is really yum blends well with ice and banana
5/5
Great product
4/5
Helped with my muscle build and fat loss. I also like the flavour especially when mixed with my mostly vege-based smoothie
5/5
Hits the spot with every smoothie. Love this product.
5/5
Love this product! Was recommended by my personal trainer and couldn’t be happier. Literally takes like a chocolate milkshake
5/5
As usual delivered quickly, got it on sale for $136. Tastes good, texture is good, not gritty and meets my protein requirements for the day.
5/5
Love this product. Not heavy at all and doesn't give you that bloated feeling a lot of protein powders give. I've been having it in my daily smoothies and ive lost 9KGs, its the only part of my diet and exercise routine that ive changed so its definitely works well as a part of a balanced diet. Very smooth, dissolves easily and doesn't leave a milky taste. Vanilla is definitely my favorite and goes with everything - unfortunately it was out of stock so had to try the chocolate, took a while to get used to the taste but otherwise great as well. Definitely recommend.
5/5
Really clean tasting shake. Not too sweet, the chocolate is more of a creamy icecream flavour rather than a rich style chocolate taste. Sits on my tummy well and has definitely boosted my weight loss while maintaining my muscle mass already after one week of daily shakes
5/5
The product is so go good and doing it's work. The flavor is really good too. 100% worth to give a try.
5/5
My favourite isolate for the last 5 years
4.5/5
Premium quality products. Highly recommend
5/5
LOVE!! Highly recommend, doesn't have a strong protein taste like some protein powders
5/5
it is awesome as always and the delivery time during covid was on point too, I will continue to buy this product and recommend others to use this.
5/5
Great product - easy to digest and tastes great - not too sweet. I take with a few blocks of ice, filtered water and a banana to bulk the drink. Now my teenage sons like it so need to get the bigger product size!
5/5
Delivery was 24hrs…so fast. A great protein powder, still our family favourite. The ON pre-workout is quite good too, another favourite.
5/5
Hands down my favourite protein,no bad stuff in it. Great tasting flavour
5/5
Perfect ??
5/5
Fast delivery Good quality stuff for cheap price in the market
5/5
Love the flavor! Tastes great as a shake, in smoothies, or used in protein balls and fudge!
5/5
It’s easy to digest and good taste
5/5
I got my products the very next day and love love my products !!!!
5/5
I just started using this so cannot comment on how effective it is (i feel it is effective but cannot really confirm it yet and maybe it’s just all in my mind LOL) but it tastes really good (better than ON whey and the ON weight gainers)
5/5
My go to brand, absolutely love mint brownie. Mixes really well and tastes amazing
5/5
Amazing product, keeps me full at night. Will definitely buy again.
5/5
Happy with the product
5/5
Great product and great flavour ????
4.5/5
Yummy choc flavour. Easy to mix.
5/5
One of the best products i had .. best price from sprint
5/5
This protein is delicious, very filling and also helps me keeping on track
5/5
Awesome product! Really helps with muscle recovery and also doesn't kick me out of Ketosis. Love it with unsweetened almond milk, greek yogurt and mixed berries. Delivery was super fast as well. Highly recommend
5/5
Exellent product , probably the best tasting and easy to drink low carb shake ive had in the last 25yrs, nice with water and or milk mixes well in the sprint fit shaker no lumps wish id tried it yrs ago.
3/5
Not a fan of protein shakes but this one is enjoyable
4.5/5
good taste, may prefer chocolate, amazing and fast digestion
5/5
this product tastes very nice which makes it easy to drink and the texture is good as well comes out like a milkshake.
4/5
Very tasty. Doesn't taste like chocolate, it's more like a biscuit taste. I like it!! It doesn't bloat you either, unlike some other protein powders. Excellent if you need to boost your protein levels without boosting those carb levels
5/5
Awsome product tastes great and mixes really easy
5/5
the taste is good and the product got all the nutrition i needed
5/5
Taste's great and very effective!!
5/5
Good taste vanilla easily digested no stomach issues, easily shakes up and low cost isolate my fav protein by far I’ve tried so many this one just digests right after a few days of use it’s like I’m not drinking whey, I currently drink three scoops a day spread between two shakes too with no digestive issues
5/5
Good and tasty product Has all the things which u was needed to init
4.5/5
Amazing taste, easy digestion..really happy
5/5
I have been using this product for a while now .. it's just super cool , it's give me the additional supplements that I require in day to day. And caramel ice is so good
4.5/5
Superfast delivery. I got it very next day in Auckland. It's an awesome product.
5/5
This is amazing! The flavour is better than I expected ??
4.5/5
good product
3/5
Taste similar to vanilla, only thing with this product is that it has alot of foam once its being mixed for consumption.
5/5
Best store always I buy here because it’s come to The next day, flavour perfect to replace a chocolate mint.
5/5
This is my go to brand. Works well for me.
5/5
Great product! Tastes delicious in a smoothie ?? Very quick delivery, will definitely order again!!
5/5
It’s trusted. It’s authentic. It’s tested. It tastes good. Mixes well. And helps build muscle
5/5
Nice flavor and mixes well with water I bought the vanilla really solid price for the amount of servings
5/5
Getting back into lifting I went with a name that was trusted and I am extremely glad I made the decision for 100% Gold Standard Whey isolate. After three weeks of lifting while using this product, I've noticed more consistent muscle growth than I have with other proteins of years past, as well as an increase in strength output. The digestion is great on my stomach. It's great on its own with water, but milk truly kicks it up a notch on the flavor.
5/5
Excellent
4.5/5
Best chocolate flavor i have tried!
5/5
This is great stuff, mixes well, rarely has clumps. Good gains. Not a fan of super sweet flavors each to there own.
5/5
Not overly sweet, just right in sweetness. Mixes well.
5/5
Best brand and awesome flavor!
5/5
Great tasting protein, doesn’t taste artificial at all.
5/5
Excellent!!
5/5
Good taste. Helps me recover and it arrived quickly. Good service and product
4/5
So good, especially in Greek yoghurt to make caramel protein mousse.
5/5
Love it. Pure and delicious
4/5
Mixes a lot easier and less chunky than standard whey, tastes good.
4/5
I swapped from the 100% Whey Double Rich Chocolate product to this 100% Isolate Chocolate Bliss and while the flavor is VERY different, I am getting used to it. I would say it's definitely sweeter and more 'malty' than the 100% Whey. With regard to the performance of the product, I'm happy with both of them (but prefer the 100% Whey flavor).
4.5/5
It's helped me in the recovery of my muscles and also shows the result I wanted. product quality is original and packing is amazing.
5/5
Really good in taste
5/5
Great taste. Easily dissolve with my protein milk.
4/5
Great product. Taste is good when mixed with correct amount of water for the scoop. Good protein content too. This product helped me to recover from DOMS.
5/5
Taste really good considering it's mixed with water. Mint brownie tastes exactly like a mint brownie. Vanilla Cream is my personal favourite.
5/5
Love! Great flavour
5/5
I have it in a smoothie with banana berries and milk. Great flavour. I like how it has no sugar and only 1g of carb per serving!
5/5
Instant difference in recovery and reduced recovery time as compared to the normal whey standard.
5/5
Good tier of all isolates, Vanilla the best and versatile flavour ??
5/5
Love the taste of my favourite protein powder yet.
5/5
Awesome product, great flavour
5/5
Top quality Protein and tastes very good. I usually just mix it with water, about 200ml, sort of tastes like chocolate cookies, without an after taste. If you're sensitive to lactose, this is your best bet.
5/5
Great powder all round! Not grainy, not too sweet, tastes nice with everything and even on its own with water or unsweetened almond coconut milk. Best product so far!
5/5
Awesome product! Dissolves and mixes really well in water but don't over-do the mixing as this product foams easily and, for me, that's unpleasant. Only happened to me once (as I learnt not to shake it as much the next time) so it was more my fault than the products'. Vanilla flavour is subtle but present. Easy to drink and really simple ingredients list. Would highly recommend.
5/5
Such a good whey! Easy to mix and drink! Good taste too!
4.5/5
Great taste and easy to mix. Saw good results.
5/5
Awesome products Awesome price Awesome service AAA
5/5
Very good!! Tastes real good !
5/5
Decided to try the gold standard of protein powders. What a delight. Clean tasting. Great tasting. Big tub. I’m covered.

Instagram sprintfit

FIND OUT BEFORE ANYONE

Receive exclusive offers and news that will brighten up your day!

Sign up successful!