Grassfed Whey Isolate
We grew tired of whey proteins that are full of flavourings, soy and additives made from lower quality dairy. Our ultra pure whey isolate is derived from Truly Grass Fed accredited cows using cold cross-flow microfiltration providing a more nutritious WPI which retains nearly 100% of its native undenatured structure.
MORE PROTEIN | 27g
MORE BCAAs | 6.6g
LOW FAT & LACTOSE
FEWER CALORIES | 112
Put Yourself Ahead of Your Competition
Reach your muscle & strength goals faster than the competition without the impact on your diet.
Grassfed Whey Isolate
The New Gold Standard. 27g Grassfed Undenatured Protein per Serving.
Is Your Protein a Milkshake or Supplement?
We grew tired of whey proteins that are full of flavourings, soy and additives made from lower quality dairy. Our ultra pure whey isolate is derived from Truly Grass Fed accredited cows using cold cross-flow microfiltration providing a more nutritious WPI which retains nearly 100% of its native undenatured structure.
Put yourself ahead of your competition. Reach your muscle & strength goals faster than the competition without the impact on your diet.
THE STATISTICS
MORE PROTEIN | 27g
MORE BCAAs | 6.6g
LOW FAT & LACTOSE
FEWER CALORIES | 112
Your Performance. Elevated.
BUILD LEAN MUSCLE MASS
Reach your hypertrophy goals faster with quality fuel your muscles need.
REDUCE RECOVERY TIME
Exploit the benefits of training more frequently than the competition.
INCREASE STRENGTH & POWER
Whatever you train for, get ahead through raw physicality.
IMPROVE MUSCULAR ENDURANCE
Make every second count, push past your limits.
EXCEPTIONALLY CLEAN PROTEIN
It's Time for an Upgrade...
Mixing
GWI has incredible instantiation properties meaning that it readily mixes with water, milk and other liquids avoiding those annoying lumps that are all too common.
Flavour
Intentionally unflavoured to keep it as pure as possible to align with your nutritional goals. On its own, the flavour is completely clean and leaves zero aftertaste!
Bioavailability
GWI has a Protein Digestibility Corrected Amino Acid Score of 1.0/1.0 and is derived from grassfed dairy which has a greater quantity and variety of essential nutrients for muscle growth and recovery - get more from every scoop.
Digestion
Seize the most from your day without interruption. GWI is incredibly easy on the stomach, low-calorie and leaves no feelings of bloat unlike additive-packed whey protein shakes.
Leucine
Leucine is a key essential amino acid and BCAA in stimulating muscle protein synthesis (MPS). Leucine increases protein synthesis and activates the mTOR signalling pathway - acting like a molecular switch that turns on the manufacturing of muscle in the body. GWI is naturally high in leucine, containing 10g per 100g of powder or 3g per serving!
BCAA
GWI is a “complete” protein source, meaning it provides all the essential amino acids that cannot be synthesised by the body. BCAAs are of particular importance in supporting muscle recovery and muscle synthesis. GWI contains 22g of BCAAs per 100g of powder, providing a huge 5g more than 80% pure protein powders (the average).
Exceptionally Clean Protein - It's Time for an Upgrade...
Mixing
GWI has incredible instantiation properties meaning that it readily mixes with water, milk and other liquids avoiding those annoying lumps that are all too common.
Flavour
Intentionally unflavoured to keep it as pure as possible to align with your nutritional goals. On its own, the flavour is completely clean and leaves zero aftertaste!
Bioavailability
GWI has a Protein Digestibility Corrected Amino Acid Score of 1.0/1.0 and is derived from grassfed dairy which has a greater quantity and variety of essential nutrients for muscle growth and recovery - get more from every scoop.
Digestion
Seize the most from your day without interruption. GWI is incredibly easy on the stomach, low-calorie and leaves no feelings of bloat unlike additive-packed whey protein shakes.
Leucine
Leucine is a key essential amino acid and BCAA in stimulating muscle protein synthesis (MPS). Leucine increases protein synthesis and activates the mTOR signalling pathway - acting like a molecular switch that turns on the manufacturing of muscle in the body. GWI is naturally high in leucine, containing 10g per 100g of powder or 3g per serving!
BCAA
GWI is a “complete” protein source, meaning it provides all the essential amino acids that cannot be synthesised by the body. BCAAs are of particular importance in supporting muscle recovery and muscle synthesis. GWI contains 22g of BCAAs per 100g of powder, providing a huge 5g more than 80% pure protein powders (the average).

OFFERS & BUNDLES
Grassfed Whey Isolate
1 Pouch (500g)
£34.99 / Pouch
MOST POPULAR 14% OFF
3 Pouches (1.5kg)
£34.99 £29.99 / Pouch
BEST VALUE 23% OFF
5 Pouches (2.5kg)
£34.99 £26.99 / Pouch
It's not in our DNA to cut corners.
GWI is manufactured to the highest certification in GMP approved facilities with our ingredients subject to strict testing processes - certificates of analysis can be produced on request! Our packaging is also sourced from environmentally friendly FSC® approved partners.
Rated Excellent on Trustpilot
"Used Atavist's Atlas for a bit of time now... this new protein is exactly what I've needed. Low sugar, no soy, high protein."
- S, B
"Saw this advertised on Facebook and thought I'd give it a go... clean taste with no bloating... Great product thanks."
- D, M
"Now onto my second bag this is by far the cleanest protein I've tried. Can't go back to sweetened. Highly recommend."
- S,O
PACKAGE TO PERFORMANCE
Easy to Ship & Delivered Fast
MADE IN THE UK
Made in Oxfordshire, UK with one of Europe's leading manufacturers.
FREE UK SHIPPING
Enjoy fast, free shipping for all of our UK customers.
SAME DAY DESPATCH
All orders are despatched rapidly to our couriers by our warehouse team.
EXPLORE OUR OFFERS
Grassfed Whey Isolate
1 Pouch (500g)
£34.99 / Pouch
MOST POPULAR 14% OFF
3 Pouches (1.5kg)
£34.99 £29.99 / Pouch
BEST VALUE 23% OFF
5 Pouches (2.5kg)
£34.99 £26.99 / Pouch
It's not in our DNA to cut corners.
GWI is manufactured to the highest certification in GMP approved facilities with our ingredients subject to strict testing processes - certificates of analysis can be produced on request! Our packaging is also sourced from environmentally friendly FSC® approved partners.
DON'T JUST TAKE OUR WORD FOR IT
Rated Excellent on Trustpilot
"Used Atavist's Atlas for a bit of time now... this new protein is exactly what I've needed. Low sugar, no soy, high protein."
- S, B
"Saw this advertised on Facebook and thought I'd give it a go... clean taste with no bloating... Great product thanks."
- D, M
"Now onto my second bag this is by far the cleanest protein I've tried. Can't go back to sweetened. Highly recommend."
- S,O
STRAIGHT TO YOUR DOOR
Easy to Ship & Delivered Fast
MADE IN THE UK
Made in Oxfordshire, UK with one of Europe's leading manufacturers.
FREE UK SHIPPING
Enjoy fast, free shipping for all of our UK customers.
SAME DAY DESPATCH
All orders are despatched rapidly to our couriers by our warehouse team.