GNC Pro Performance Essential Amino Complete Strawberry Kiwi

Our assessment

The evidence shows that the primary active ingredient in GNC Pro Performance Essential Amino Complete Strawberry Kiwi, based on the data provided, is Calcium. However, the data provided is incomplete regarding the specific amino acid blend. For the ingredient Calcium, our assessment is that while it is essential for bone health, you must be cautious with supplementation. The data shows that high intakes might increase the risk of heart disease and prostate cancer [NIH ODS].

How it works

Think of calcium as a structural builder for your skeleton. It supports bone density and mineral deposition, which is critical for maintaining strong bones as you age [NIH ODS]. It also acts as a neuromuscular regulator, supporting muscle relaxation and nerve signaling [NIH ODS]. The specific effects of the amino acid blend in this product are not detailed in the provided data.

Safety profile

Data not available for this specific product. The FDA has received a total of 592,059 adverse event reports across all dietary supplements, but specific report counts for this product or its amino acid blend are not provided [FDA data]. For the ingredient Calcium, side effects from high levels in the blood and urine can include poor muscle tone, poor kidney function, low phosphate levels, constipation, nausea, weight loss, extreme tiredness, frequent need to urinate, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS]. Additionally, calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].

Our recommendation

Because the data provided does not specify the amounts of calcium or the specific amino acid profile in this product, we cannot make a confident recommendation for its use. If you are considering it, be aware of the potential risks associated with high calcium intake [NIH ODS]. You should check with your healthcare provider before starting this supplement, especially if you take any of the medications listed that interact with calcium [NIH ODS]. For a more specific recommendation, data on the complete ingredient list and amounts is required.

Supplement labels contain several key sections regulated by the FDA:

• Serving Size — The recommended amount per dose. Always check this — some products require multiple capsules per serving.
• Amount Per Serving — Shows the quantity of each nutrient in the product, typically in IU (International Units), mg (milligrams), or mcg (micrograms).
• % Daily Value (%DV) — Indicates how much a nutrient in a serving contributes to a daily diet. 5% DV or less is low; 20% DV or more is high.
• Other Ingredients — Lists inactive ingredients like fillers, binders, and capsule materials (e.g., gelatin, cellulose, magnesium stearate).
• Suggested Use — The manufacturer's recommended directions for taking the supplement, including timing and dosage.

Source: FDA Dietary Supplement Labeling Guide