100% Whey Protein Isolate Formula
- 25g Fast Acting Whey Protein
- Complete & Rapidly Digested Muscle Fuel
- Added Glutamine for Muscle Recovery
- Virtually Zero Lactose, Sugar, Fat or Cholesterol

The first rule in bodybuilding is Input = Output. Rule 1 Protein is a superior protein that includes the nutrition you put into your body to create the perfect protein supplement. That's why R1 Protein contains one of the purest, most rapidly digested fuels around to help build and repair muscle. And with virtually zero lactose, sugar, fat, or cholesterol, it's the most complete muscle fuel to add to your routine.
When To Take Rule 1 R1 Protein
R1 Protein is a high-quality isolate, which means fast absorption, meaning it is best taken immediately after a workout. Resistance training is one of the main promoters of muscle protein synthesis, meaning the faster we can get the protein into the digestive system, the better chance our body has of making the most out of the muscle-repairing nutrient.
Rule 1 R1 Protein Dosage
The dosage for Rule 1 Protein is simply one scoop. This measures to 29.2g of powder, 25g of which is protein (85%) This is a standard amount of protein, however the amount that will suffice for you will vary from person to person. For example, a 100kg male who participates in regular resistance training may benefit from a scoop and a half per shake. A general rule of thumb is 0.4g of protein per kilogram of body weight for your optimal protein intake per sitting.
Rule 1 R1 Protein Best Flavours
One of the reasons Rule 1 Protein has become one of the best-selling proteins on the market could be attributed to its large range of flavour options. From Pavlova Cake, to Choc Peanut Butter and White Choc Raspberry, there's a flavour to excited everyone. If you're wondering what are the most popular, here they are:
- Lightly Salted Caramel
- Choc Biscuit
- Vanilla Creme
- Chocolate Fudge
- Choc Hazelnut
- Cookies n Creme
Benefits & Results of Rule 1 R1 Protein
Trainees will benefit most from Rule 1 Protein's fast absorption as a perfect post-workout shake for increasing the rate or recovery meaning for decreased DOMS (delayed onet muscle soreness) and allowing the body more opportunity to re-build, making the most out of your workout.
Rule 1 R1 Protein Highlights
- Each serving contains over 6 grams of BCAA's
- Added Glutamine for Improved Muscle Recovery & Immune Support
- Packed with Instantised Micro-filtered & Ion-exchange Whey Protein Isolate
- Rapidly Digested & Assimilated
- Pure Whey Protein Hydrolysate featuring Ultra-Segmented Isolates
- Carefully Blended & Packaged in NS GMP Facility in the USA
Rule 1's flagship protein is made with super-pure 100% whey isolate, fast-acting whey hydrolysate, and virtually nothing else. It is completely omitted with the use of whey concentrates as well as creamers, gums, amino spiking, and other fillers that dilute what you really came for – protein. The result is an industry leading Protein Purity Percentage (PPP) of up to 87%. R1 Protein is protein with a capital-P.
Rule 1 R1 Protein
- Hi I am using Vaso D and Beyond BCAA. Could you pls tell me if i can use rule 1 protein with that. Thanks
Yes you can take it together with Rule 1 Protein.
- Is rule 1 protein isolate suitable and safe while breast feeding
Majority of supplements are not recommended to be taken whilst pregnant or breast feeding so I would suggest consulting a doctor if you are looking to purchase.
Kind Regards,


More Product Information
What is the difference between this and the R1 Whey Blend?
This version of R1 Protein is what is referred to as a whey protein isolate or WPI for short. WPI's contain alot less lactose than their whey blend counterparts, are generally lower in carbs and fat, digest much easier. Some say they are also more bioavailable without the slow-digesting whey protein concentrate found in blends and are a perfect post-workout shake.
What is the best flavour of R1 Protein?
Over the years Rule 1 have added many exciting new flavour options to their protein powders. Their Lightly Salted Caramel has remained one of the biggest fan-favourites however its hard to not get excited about the Choc Biscuit, Pavlova Cake or Red Velvet.
How many times a day should I take this?
R1 Protein is a low-calorie, low-carb whey isolate. It is a convenient way to up your daily protein intake without blowing out your daily calories. When your goal is to build lean muscle, a high protein intake is important - some suggest a gram per pound of bodyweight (or approximately 2 grams per kilo.)
Does this cause bloating?
High-quality isolates such as R1 Protein tend to cause zero to minimal bloating being low in lactose as well as having no gums or fillers.