Product Label

GNC Calcium 600 mg

Brand: GNC · Form: SUPPLEMENT FORM, OTHER [E0172] On Market

Our assessment

The evidence shows that calcium is essential for bone health, but the data on supplementation requires careful consideration. For GNC Calcium 600 mg, our assessment is that it provides a significant dose of a vital mineral, but you must be aware of the risks and interactions before starting it [NIH ODS].

How it works

Think of calcium as a building block for your skeleton. It supports bone density and mineral deposition, and it also plays a role in neuromuscular relaxation, helping your muscles relax and your nerves signal properly [NIH ODS].

Safety profile

FDA received 592,059 total adverse event reports across all products. 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] [FDA data]. Calcium can also reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].

Our recommendation

Start by assessing your total daily calcium intake from food and other supplements. If you choose to take GNC Calcium 600 mg, take it with food and separate it from medications listed in the safety profile by at least two hours. Data not available on the exact form of calcium used in this product, which can affect absorption. Consult your healthcare provider before starting, especially if you have a history of kidney stones or heart disease [NIH ODS].

AI-assisted analysis. Data sourced from NIH DSLD.

Supplement Facts

BrandGNC
Serving Size
Contents120.0 Caplet(s)
Market StatusOn 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

Original Label

View Full DSLD Label (PDF)

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