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Rice Protein

Uses

Rice protein is extracted from rice and used in some protein supplements. Vegetarians may prefer it over protein supplements made from animal sources (such as whey or casein, which are milk proteins). Since rice is rarely involved in food allergies,1 rice protein may also be preferred by people with food allergies, and may be suitable to use in hypoallergenic infant formulas.2 Rice protein is not a complete protein, however, due to insufficient levels of the amino acids lysine and threonine.3, 4 Therefore, these amino acids are often added to rice protein products to correct this imbalance.

What Are Star Ratings?

This supplement has been used in connection with the following health conditions:

Used for Why
1 Star
Atherosclerosis
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Though not yet proven in clinical research, animal studies suggest that rice protein–based diets result in less buildup of atherosclerotic plaque compared with animal protein–based diets.
Animal studies suggest that rice protein–based diets result in less buildup of atherosclerotic plaque compared with animal protein–based diets. This effect may be due to mechanisms involving antioxidant function, cholesterol metabolism, or insulin function. Controlled human studies are needed to determine whether consuming rice protein can prevent or treat atherosclerotic disease.
1 Star
Athletic Performance
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Some athletes believe rice protein may also improve blood flow to muscle to enhance growth and repair. However, no research has investigated the effects of rice protein on athletic performance.

Compared with other protein supplements, rice protein has more of the amino acid arginine, and since arginine is a vasodilator that can enhance blood flow to tissues, some athletes believe rice protein may also improve blood flow to muscle to enhance growth and repair. However, no research has investigated the effects of rice protein on athletic performance.

1 Star
Obesity
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Rice protein may be a good choice for dieters who are vegan or sensitive to dairy and want to boost protein in their diet.
Researchers have found plant-based protein supplements can help reduce appetite and improve blood glucose control, support cardiovascular health, and may help promote weight loss while preserving muscle mass. Dieters who are vegan or sensitive to dairy may benefit from supplementing with rice protein. Animal research suggests rice protein may induce weight loss by improving fat metabolism.

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