Our ReviewGNC AMPPlant Isolate

GNC AMP Plant Isolate offers 25g of protein per serving, with fava bean and brown rice protein isolates. Ideal for muscle recovery and active lifestyles.
GNC AMP Plant Isolate

GNC AMP Plant Isolate is a plant-based protein powder designed to support muscle recovery and growth. Made with fava bean and brown rice protein isolates, it offers a vegan-friendly protein source. Each serving delivers 25 grams of protein, 2 grams of total carbohydrates, and 2 grams of fat, making it suitable for those looking to increase their protein intake without excessive calories. This product is formulated to provide essential nutrients for active lifestyles.

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GNC AMP Plant Isolate
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The GNC AMP Plant Isolate protein powder features a blend of fava bean protein isolate and brown rice protein isolate, providing a robust plant-based protein source. Fava bean protein is rich in essential amino acids and is easily digestible, which is beneficial for muscle recovery and growth. Brown rice protein isolate complements this by adding a well-rounded amino acid profile, making it a solid choice for those seeking a complete plant-based protein.

Protein Matrix
Faba Bean Isolate
Rice Isolate

In addition to the primary protein sources, the inclusion of inulin is noteworthy. Inulin is a prebiotic fiber that supports gut health by promoting the growth of beneficial bacteria in the digestive system. This can be particularly advantageous for those who may experience digestive discomfort with other protein powders. However, a digestive enzyme would have also been a nice addition as well. The product also contains xanthan gum and guar gum, which act as thickening agents, enhancing the texture and consistency of the shake.

However, the presence of artificial ingredients like sucralose and acesulfame potassium is a surprise. Given that plant-based protein powders are commonly marketed toward those seeking a more natural or vegan-friendly protein source, the inclusion of artificial sweeteners seems counterintuitive to the targeted consumer.

For taste, natural and artificial flavors are included to create the Vanilla Cookie flavor, which again, while generally well-received, may not appeal to those seeking a more natural product.

The protein powder also contains some salt, which helps to balance the flavor but should be noted by individuals monitoring their sodium intake.

Reviewed Product
 Plant Isolate
Reviewed Flavor
Vanilla Cookie
Product Ingredients
Fava Bean Protein Isolate, Brown Rice Protein Isolate, Inulin, Natural and Artificial Flavor, Xanthan Gum, Sucralose, Acesulfame Potassium , Guar Gum, Salt.
Label Endorsed As



GNC AMP Plant Isolate excels in delivering its primary promise: effective muscle recovery and growth support. With 25 grams of protein per serving, sourced from fava bean and brown rice protein isolates, it provides a substantial amount of high-quality protein. In fact, at the time of writing this review, it contained the highest percentage of protein of all plant-based protein powders we have reviewed to date.


The protein blend's quality is particularly noteworthy. Fava bean protein isolate is rich in lysine, an amino acid crucial for muscle repair, while brown rice protein isolate offers a comprehensive amino acid spectrum, enhancing the overall effectiveness of the protein mix. This combination ensures that users receive a balanced protein intake.

The product's nutritional profile is also supportive of its effectiveness. Each serving contains 120 calories, 2 grams of total fat, and 2 grams of total carbohydrates, including 1 gram of dietary fiber. The low net carb and fat content make this protein powder suitable for those following various dietary regimens, including low-carb and low-fat diets. This composition allows users to increase their protein intake without significantly affecting their macronutrient balance.

Additionally, it also includes 7 mg of iron per serving. Iron is essential for oxygen transport in the blood, and adequate iron levels can help improve overall athletic performance and reduce fatigue. This makes the product particularly beneficial for athletes and active individuals who require efficient oxygen delivery to their muscles during workouts.

The presence of inulin, a prebiotic fiber, further enhances the product's effectiveness. Inulin supports digestive health by promoting the growth of beneficial gut bacteria, which can aid in nutrient absorption and overall digestive comfort. This is particularly important for protein powders, as some users may experience digestive discomfort with high-protein supplements.



GNC AMP Plant's Vanilla Cookie flavor is surprisingly good and reminiscent of a light vanilla cookie with some caramel notes. The flavor is sweet and enjoyable, with a more natural vanilla taste. However, it does finish with a hint of artificial aftertaste, likely from the sucralose and perhaps the acesulfame potassium.

In terms of texture, the powder has a smooth, fine consistency. However, when mixed with water, there is a touch of graininess. The texture improves significantly when mixed with almond milk though, resulting in a creamier consistency that masks the slight graininess. If you prefer a thicker, more indulgent texture, mixing it with milk or a milk alternative is definitely the way to go!

Mixability is also pretty good, though using a standard shaker bottle can require a more vigorous shake to avoid some minor clumping. However, that's not all that unusual with plant-based powders.

When compared to similar products, the taste is more enjoyable than most, especially considering it's a plant-based protein. Many plant-based proteins have a strong, earthy taste that can be off-putting, but the Vanilla Cookie flavor manages to mask this effectively. However, the slight artificial aftertaste might be a drawback for some, especially those sensitive to artificial sweeteners.



GNC AMP Plant Isolate protein powder falls into the mid-range to premium category, reflecting the brand reputation and quality of its ingredients.

The use of fava bean and brown rice protein isolates is a significant factor in its pricing. These high-quality, easily digestible protein sources contribute to its effectiveness in muscle recovery and growth, justifying the higher cost compared to budget options that may use less efficient protein blends. Additionally, the product's inclusion of the prebiotic fiber adds to its overall value, offering more than just protein in each serving.

Relative Cost

Compared to other plant-based protein powders, GNC AMP Plant Isolate stands out for its balanced nutritional profile. However, the presence of artificial sweeteners and flavors detracts from its appeal for those seeking a completely natural product. This aspect will likely influence the perceived value for many users.



GNC AMP Plant Isolate offers a solid plant-based protein option with high-quality protein sources and additional health benefits like prebiotic fiber. However, the inclusion of artificial sweeteners and flavors contradicts the natural and vegan-friendly appeal expected by its target users.

Compared to competitors, it stands out with its very effective protein blend but falls short for those seeking a completely natural product. This protein powder is best suited for those prioritizing protein content and effectiveness over an entirely natural ingredient list. It remains an excellent choice for muscle recovery and growth but might not satisfy the most health-conscious consumers.

GNC AMP Plant Isolate

Where to buy?

We recommend Amazon, as they consistently provide the best prices and quickest shipping.

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