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Nature Made Magnesium
Photo: Open Food Facts contributors (CC BY-SA)

Dietary supplements

Nature Made Magnesium

250 mg

Excellent out of 100 High confidence
  • May contain traces of 1,4-dioxane
  • No synthetic dyes
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Why it scores 96

Nature Made Magnesium scores 96 out of 100 (Excellent) under GoodSwap’s published rules. What moved the score most:

  1. Microcrystalline cellulose: An ingredient class typical of ultra-processed foods (NOVA group 4). Info
  2. Hydroxypropyl methylcellulose: An ingredient class typical of ultra-processed foods (NOVA group 4). Info
  3. Silicon dioxide: An additive class typical of ultra-processed foods (NOVA group 4). Info

Every line of the math is on The Receipt below, with its evidence tier and sources.

The Receipt

Magnesium

START100

Ingredients

  • Microcrystalline cellulose
    Info An ingredient class typical of ultra-processed foods (NOVA group 4). [1]
  • Hydroxypropyl methylcellulose
    Info An ingredient class typical of ultra-processed foods (NOVA group 4). [1]
  • Silicon dioxide
    Info An additive class typical of ultra-processed foods (NOVA group 4). [1]
  • Color added (not named)
    Info 21 CFR 101.22(k) requires certified color additives (FD&C dyes and their lakes) to be declared by name. [2][1]
  • Polyethylene glycols (PEG) and ethoxylates
    Strong Ingredients named with PEG, -eth- or -oxynol- can carry trace 1,4-dioxane from manufacturing (IARC Group 2B). [3][4]
subtotal−4
TOTAL 96Excellent

100 − 4 = 96

GTIN 00031604031077 · 2026-09-20

score v1.3.0 · kb 2026.10.11

High confidence

Same product, same score. Every time.

Nutrition per 100 g

Added sugars0 g

Serving: 1g

Ingredients

High Moderate Not recognized Tap an ingredient for its evidence and rules.
Label text, as published

Magnesium Oxide, Cellulose Gel, Croscarmellose Sodium, Stearic Acid, Hypromellose, Magnesium Stearate, Silicon Dioxide, Color Added, Polyethylene Glycol

Allergens and diets

  • Palm-oil-free

Always check the package: recipes change.

More from Nature Made

Sources

  1. Ultra-processed foods: what they are and how to identify them

    Public Health Nutrition · April 2019 · Peer-reviewed

    doi.org

  2. 21 CFR 101.22(k) Declaring color additives in the ingredient list

    Electronic Code of Federal Regulations (eCFR), U.S. Office of the Federal Register · Dec 19, 2016 · Law

    “Color additives not subject to certification and not otherwise required by applicable regulations in part 73 of this chapter to be declared by their respective common or usual names may be declared as “Artificial Color,” “Artificial Color Added,” or “Color Added””

    ecfr.gov

  3. 1,4-Dioxane in Cosmetics: A Manufacturing Byproduct

    U.S. Food and Drug Administration · Regulator

    “1,4-dioxane forms as a byproduct during the manufacturing process of certain cosmetic ingredients.”

    fda.gov

  4. Agents Classified by the IARC Monographs, Volumes 1–142 (List of Classifications)

    International Agency for Research on Cancer (WHO) · IARC

    monographs.iarc.who.int