NOW Sports Amino Complete

Our assessment

The evidence shows that NOW Sports Amino Complete is a multi-ingredient supplement, but based on the data provided, the only ingredient with sufficient information to evaluate is calcium. Our assessment is that while calcium is essential for bone health, the specific formulation of this product does not allow us to confirm its overall efficacy or safety for general use. You should be aware of calcium's known benefits and risks before taking this supplement.

How it works

Calcium functions as a master regulator for your body's structural and signaling systems. It supports bone mineralization, helping to deposit minerals into your skeleton for density, and aids in neuromuscular relaxation by supporting muscle relaxation and nerve signaling [NIH ODS]. Think of it as a key nutrient for both your physical framework and your nervous system's communication.

Safety profile

Safety data is critical here. The FDA has received a total of 592,059 adverse event reports across all supplements, but specific numbers for this product are not available. For calcium specifically, high intakes might increase the risk of heart disease and prostate cancer. High levels in the blood and urine can cause 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]. You should take this supplement at least two hours apart from any of these medications.

Our recommendation

Our recommendation is to proceed with caution. Since the product label data is marked "See label" and the ingredient list is incomplete in the provided data, we cannot verify the exact doses of all components. If you choose to use this product, be mindful of your total calcium intake from all sources (food and supplements) to avoid exceeding safe levels. Data on other ingredients in this blend is not available, so you should consult your healthcare provider before starting this supplement, especially if you take any of the medications listed above.

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