NOW Amino 1000

Our assessment

Our assessment: For the product NOW Amino 1000, the primary ingredient of concern is calcium. The evidence shows that calcium is essential for bone health, but the data we have does not specifically analyze the amino acid content of this supplement. We must focus on what is known: calcium supports bone mineralization and neuromuscular relaxation [NIH ODS]. However, the data for this specific product's amino acid profile is not available.

How it works

Calcium acts as a master regulator for your body. It is critical for bone mineralization, helping to deposit minerals into your skeleton for density and strength. It also supports neuromuscular relaxation, meaning it helps your muscles relax and your nerves signal properly after contraction [NIH ODS]. Without this data, we cannot comment on how the amino acids in this specific product function.

Safety profile

The FDA has received a total of 592,059 adverse event reports across all supplements, but specific data for NOW Amino 1000 is not available. For calcium, some research suggests high intakes might increase the risk of heart disease and prostate cancer. High levels of calcium 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]. Calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].

Our recommendation

Data not available for a specific recommendation on NOW Amino 1000. Because the evidence does not provide specific data on the amino acid content or its effects, we cannot confidently recommend this product. If you are considering it for amino acid support, seek a product with published clinical data. If you are taking it for calcium, be aware of the potential interactions with medications listed above [NIH ODS] [FDA data].

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