Higher Nature Glutamine Amino Acid 500 mg

Our assessment

The evidence shows that this product contains 500 mg of the amino acid glutamine, but the available data on glutamine specifically is limited. Our assessment is based on the ingredient calcium, which is listed in the NIH ODS data for a related category. For calcium, the data supports its role in bone mineralization and neuromuscular relaxation [NIH ODS]. However, for glutamine itself, specific health claims and efficacy data are not available in the provided information.

How it works

Based on the calcium component in the data, think of it as a structural support — it helps maintain bone density and supports nerve signaling for muscle relaxation [NIH ODS]. For the glutamine ingredient, detailed mechanisms of action are not provided in the data. You should consider that the primary role of this supplement is to supply 500 mg of the amino acid glutamine, but the specific physiological effects are not documented in the source material.

Safety profile

FDA received 592,059 total adverse event reports across all supplements, but specific report counts for this product or its ingredients are not isolated in the data provided. For calcium, high intakes might increase the risk of heart disease and prostate cancer, and can cause poor muscle tone, poor kidney function, constipation, nausea, and abnormal heart rhythms [NIH ODS]. For glutamine, side effects are not specified in the provided data — you should consider this information as "Data not available."

Our recommendation

Our recommendation is to approach this supplement with caution. Since the data does not provide specific studies or side effect reports for glutamine, you should consult with your healthcare provider before starting. For the calcium component, be aware that it can reduce absorption of medications like bisphosphonates, tetracycline antibiotics, and levothyroxine [NIH ODS]. Without specific safety data on glutamine, it is best to prioritize whole food sources of amino acids and discuss your individual needs with a clinical professional.

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