Skip to main content

Oryzatein® Rice Protein is as Good as Whey for Muscle Building and Aiding Exercise Recovery

Oryzatein® Rice Protein is as Good as Whey for Muscle Building and Aiding Exercise Recovery

Full Manuscript Published June 2013 – Nutrition Journal 



Consumption of moderate amounts of animal-derived protein has been shown to differently influence muscle hypertrophy during resistance training when compared with isonitrogenous and isocaloric amounts of plant-based protein.  The purpose of the study was to evaluate perceived recovery and changes in body composition when supplementing with rice protein isolate or whey protein isolate following periodised resistance-training.


24 college-aged, resistance trained males were recruited for this study. Subjects were randomly and equally divided into two groups, to either consume 48 grams of rice protein isolate (RPI) or whey protein isolate (WPI) on training days. Subjects trained 3 days per week for 8 weeks as a part of a daily undulating periodised resistance-training program. The rice and whey protein supplements were isocaloric and isonitrogenous, and they were consumed immediately following exercise.  Ratings of perceived recovery, soreness, and readiness to train were recorded prior to and following the first training session. Ultrasonography determined muscle thickness, dual emission x-ray absorptiometry, and bench press and leg press strength were recorded during weeks 0, 4, and 8.



No significant differences were present in psychological scores of perceived recovery, soreness, or readiness to train. There were significant differences within rice and whey groups for changes in lean body mass, muscle mass, strength and power from 0 to 8 weeks. However, there were no significant differences between groups.


Oryzatein® rice protein may serve as a 1:1 replacement for whey protein in products intended to build muscle, enhance performance or aid in exercise recovery.


Rice protein isolate administration post resistance exercise decreased fat-mass and increased lean body mass, skeletal muscle hypertrophy, power and strength comparable to whey protein isolate. Despite being an incomplete protein, rice protein appears to be equally as effective as whey in trained athletes consuming a balanced omnivorous diet.

At G-factor we use only Axiom plant protein ingredients. They are fantastic alternatives to whey protein as they boast excellent amino acid profiles while being inherently cholesterol-free and lower in sodium, always chemical and hexane-free, easily digestible, part of a clean label, all-natural, more Earth-friendly, and most importantly, allergen-free. Our plant proteins are more inclusive of the millions of consumers who are lactose intolerant, vegan, raw, Kosher, etc. and a great fit for breakfast, snack, vegetarian, low glycaemic, weight control and/or sport nutrition foods and beverages. 


Brown Rice Protein

Oryzatein® is an allergen-friendly protein source from the ancient whole rice grain. Providing all essential amino acids, this high-quality product is being used in food grade products as both a replacement for and in conjunction with soy protein and whey protein. It can also be blended with Vegotein® Pea Protein which has a complimentary amino acid profile to achieve a full amino acid profile including the all important 9 Essential Amino Acids (EAAs) that the body needs.



Yellow Pea Protein

Vegotein® is produced from U.S. and Canadian yellow non-GMO peas, using a natural chemical-free, water separation process. Delivers the most consistently enhanced sensory experience on the market.

As an excellent plant protein source, Pea Protein is rich both in iron and essential amino acids and especially high in Lysine and Arginine. It is being used as a replacement for soy protein and whey protein in food grade products.
It is often blended with rice protein to complete the amino acid profile, as legumes and grains have complimentary amino acid profiles ensuring a full amino acid profile including the all important 9 Essential Amino Acids (EAAs) that the body needs.


Leave a comment

Comments have to be approved before showing up

Help those affected by bushfires

Donate now