NOW Glucosamine & Chondroitin
Brand: NOW · Form: CAPSULE [E0159]
Our assessment
The evidence shows that NOW Glucosamine & Chondroitin is a combination supplement, but the provided data only covers the ingredient Calcium. For this product, specific health outcome data for glucosamine and chondroitin is not available in the provided dataset. Our assessment is limited to the calcium component, which supports bone mineralization and neuromuscular relaxation [NIH ODS].
How it works
Think of calcium as a structural builder for your bones and a signal messenger for your nerves and muscles. It supports bone density and mineral deposition, while also helping your muscles relax and your nerves send signals properly [NIH ODS].
Safety profile
The FDA received a total of 592,059 adverse event reports across all supplement categories. For calcium specifically, high intakes may increase the risk of heart disease and prostate cancer. High blood and urine levels can cause poor muscle tone, poor kidney function, low phosphate levels, constipation, nausea, weight loss, extreme tiredness, frequent urination, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS] [FDA data]. Calcium can also reduce the absorption of bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Data not available for the specific glucosamine and chondroitin ingredients in this product. For the calcium component, you should be cautious about total intake from all sources. If you are taking any medications listed in the interactions, separate your doses by at least two hours. Always consult your healthcare provider before adding this supplement to your routine [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | NOW |
|---|---|
| Serving Size | |
| Contents | 120.0 Capsule(s) |
| Market Status | Off Market |
How to Read This Label
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