Product Label

Nature's Sunshine Chelated Iron

Brand: Nature's Sunshine · Form: TABLET [E0155] On Market

Our assessment

The evidence shows that calcium is a critical mineral for bone health, but the data on high-dose supplementation includes important safety considerations. For the specific product Nature's Sunshine Chelated Iron, data regarding its ingredients is incomplete, and no specific adverse event reports are linked to this brand in the provided data. Our assessment focuses on the ingredient calcium, which is listed in the data.

How it works

Think of calcium as a structural foundation for your body. It supports bone mineralization and density, and it is essential for neuromuscular relaxation and nerve signaling [NIH ODS]. Without adequate calcium, your body cannot maintain strong bones or proper muscle function.

Safety profile

FDA received a total of 592,059 adverse event reports across all dietary supplements. For calcium specifically, high intakes might increase the risk of heart disease and prostate cancer [NIH ODS]. 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 also reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].

Our recommendation

For Nature's Sunshine Chelated Iron, data on the specific iron content and recommended dosage is not available. If you are considering calcium supplementation, it is crucial to not exceed the established Tolerable Upper Intake Level without medical supervision. Discuss any calcium supplement use with your doctor, especially if you take prescription medications, as interactions are possible [NIH ODS]. We recommend obtaining calcium from food sources first and using supplements only to fill a documented gap.

AI-assisted analysis. Data sourced from NIH DSLD.

Supplement Facts

BrandNature's Sunshine
Serving Size
Contents180.0 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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