NOW Zinc Glycinate
Brand: NOW · Form: SOFTGEL CAPSULE [E0161]
Our assessment
The evidence shows that calcium is a foundational mineral for bone health, but it is not a supplement to take casually. Our assessment is that you should only supplement calcium if you know your dietary intake is low, as excessive intake carries real risks. We are reviewing NOW Zinc Glycinate, but the provided data only contains information on the ingredient calcium, not zinc glycinate specifically.
How it works
Calcium acts as a structural building block for your bones and teeth, where it supports bone density and mineral deposition [NIH ODS]. It also plays a critical role in neuromuscular function, helping your muscles relax and your nerves signal properly [NIH ODS]. Think of it as the raw material your body needs for both structure and communication between cells.
Safety profile
The FDA received a total of 592,059 adverse event reports across all supplements, though this number is not specific to calcium alone [FDA data]. High calcium intake can lead to elevated blood and urine levels, which may cause poor muscle tone, constipation, nausea, weight loss, extreme tiredness, and abnormal heart rhythms [NIH ODS]. Some research also suggests that high calcium intakes might increase the risk of heart disease and prostate cancer [NIH ODS].
Our recommendation
Data not available for a specific recommendation on NOW Zinc Glycinate. For calcium, our recommendation is to meet your needs through food first. If you supplement, do not exceed 1,000-1,200 mg per day from all sources combined, and always take calcium with food to improve absorption and reduce kidney stone risk [NIH ODS]. Avoid taking calcium at the same time as medications like levothyroxine or certain antibiotics, as it can block their absorption [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | NOW |
|---|---|
| Serving Size | |
| Contents | 120.0 Softgel(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