Product Label

Rexall Naturalist Calcium Magnesium And Zinc

Brand: Rexall Naturalist · Form: TABLET [E0155] On Market

Our assessment

Our assessment: This supplement provides a solid foundation for bone health, but you must be aware of the specific risks and interactions. The data shows that calcium supports bone mineralization and neuromuscular relaxation [NIH ODS]. However, the evidence also shows that high calcium intakes might increase the risk of heart disease and prostate cancer [NIH ODS]. Total adverse event reports related to this product category stand at 592,059 [FDA data], though this number covers all products under this brand, not just this specific formula.

How it works

Think of calcium as a structural building block for your bones and a messenger for your nerves. It works by supporting bone density and mineral deposition, which helps keep your skeleton strong [NIH ODS]. At the same time, it supports muscle relaxation and nerve signaling, meaning it helps your muscles unwind and your nerves transmit messages properly [NIH ODS]. The magnesium and zinc in this formula work alongside calcium, though specific data for these additional ingredients was not provided.

Safety profile

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]. You should also know that calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Side effect counts specific to this product are not available beyond the total of 592,059 reports [FDA data].

Our recommendation

Our recommendation: Take this supplement with food to improve absorption, but separate it from any medications you take by at least two hours to avoid interaction issues [NIH ODS]. Do not exceed the labeled dose. If you have a history of kidney stones, heart disease, or prostate cancer, consult your healthcare provider before starting [NIH ODS]. Data on the optimal dosage for this specific combination was not provided, so follow the label directions exactly.

AI-assisted analysis. Data sourced from NIH DSLD.

Supplement Facts

BrandRexall Naturalist
Serving Size
Contents100.0 Tablet(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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