Brand: Source Naturals

Tablet or PillOther CombinationsOn Market
Click to view full label

Net Contents

60 Tablet(s)

Serving Size

1–2 Tablet(s)

Servings Per Container

30

Supplement Form

Tablet or Pill

Bar Code (UPC/SKU)

0 21078 00786 9

Product Version

SN0786 REV H111

Label Analysis

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

3Active Ingredients

3 distinct active ingredients are disclosed in Supplement Facts.

100%Amount Transparency

Every active ingredient discloses a specific amount per serving.

3% Daily Value Coverage

3 ingredients report a %DV; 1 meet or exceed 100% DV.

2Dietary Attributes

Label states: Vegetarian, Gluten-Free.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Allergen Guide

Contains

  • Milk
  • Egg
  • Wheat
  • Soy
  • Gluten

Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.

Supplement Facts

Serving Size: 1–2 Tablet(s) · 2 per day

IngredientAmount Per Serving% Daily Value
Vitamin C(Ascorbic Acid, Potassium Ascorbate)1 Gram(s)1667%
Magnesium(Magnesium Chelate)150 mg40%
Potassium(Potassium Ascorbate, Potassium Citrate)198 mg6%

Not Present

Other Ingredients

Stearic AcidHydroxypropyl CelluloseModified Cellulose GumSilicaMagnesium Stearate

Target Groups

VegetarianAdult (18 - 50 Years)Gluten FreeDairy FreeSugar Free

Label Claims

NutrientAll OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Suggested use: 1 to 2 tablets twice daily with a meal.

Warnings & Precautions

Precautions re: Pregnant or Nursing or Prescription Medications

Note: if you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.

Precautions re: All Other

Do not use if either tamper-evident seal is broken or missing.

Precautions re: Children

Keep out of the reach of children.

Formulation

Formula re: Contains

Potassium and magnesium are two of the main minerals in most cells in the body. Potassium is essential for nerve function, muscle strength, glycogen formation, and the regulation of heart action and blood pressure. Magnesium is essential for energy production and storage, muscle relaxation, and the absorption of potassium within the body. Dietary surveys indicate that many people get only 2/3 of the U.S. RDA for magnesium, and the typical American high-sodium diet tends to deplete potassium. K-MAG C provides a simple solution to these common dietary imbalances, while providing an excellent source of vitamin C.

Formulation re: Vegetarian/Vegan

Suitable for vegetarians.

Formulation re: Does NOT Contain

Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no sugar, starch, preservatives, or artificial color, flavor or fragrance.

Formula re: Contains

Potassium-Magnesium & vitamin C complex

FDA Statements

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug administration. This product is not intended to diagnose, treat, cure or prevent any disease.

FDA Statement of Identity

Dietary Supplement

Other Label Statements

Brand IP Statement(s) re: (c), (TM), (SM)

Copyright Source Naturals, Inc.

Manufacturer & Distributor

Distributor

Source Naturals, Inc.

P. O. Box 2118, Santa Cruz, CA, 95062

Market Reference

$5.83 – $43.98· 22 listings
  • Source Naturals K-Mag C 60 Tablets

    Ayurvedic Herbs Direct5.0(1)
    $13.17
  • Source Naturals Magnesium Ascorbate 1000 mg

    iHerb4.8(298)
    $21.45
  • Source Naturals 100 Tablets

    Chinese Herbs Direct4.7(483)
    $5.83Lowest
  • Magnesium Ascorbate Source Naturals

    PureFormulas.com4.8(160)
    $11.89
  • Source Naturals Calcium & Magnesium Tablets

    drnutrition.com4.8(584)
    $9.34
  • Source Naturals Mag/Cal 2: 90 Capsules

    Herbs Direct3.0(1)
    $10.52
  • Magnesium Malate Source Naturals

    TheBetterHealthStore.com4.8(7800)
    $11.19
  • Source Naturals Magnesium Glycinate

    Walmart - Health Chest4.8(1100)
    $24.96

Where to Buy Locally

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Research & Studies

  • Chemistry and Pharmacology of Antidiabetic Herbs/Herbal Extract

    S Rani, M Tuteja - Pharmacology of Plants and Plant Derived …, 2025 - api.taylorfrancis.com

    … On the other hand, seeds are the best natural sources of zinc and chromium, with 5.65 and 45.45 mg/100 g. Ascorbic acid, alkaloids, momordium, charantin, steroidal saponin, minerals, …

    2025
  • Salinity as an Inducer of Antioxidant Activity Exerted by Mangrove Species from Campeche, Mexico

    CA Chan-Keb, JL Aragón-Gastélum… - Plants, 2025 - mdpi.com

    The mangrove ecosystem is reported to have a large diversity of species that develop in environments with high salinity levels. Plant species from mangroves are used in traditional …

    20254 citations
  • Journal of Agriculture and Food Research

    P Meghwar, AA Panhwar, ID Boateng… - Journal of Agriculture …, 2024 - researchgate.net

    … Nowadays, people are interested in purchasing natural extracts in tea beverages, and health-conscious individuals prefer them if they contain no or low caffeine content. Caffeine can …

    2024
  • The impact of minerals and micronutrients on growth control.

    I Dørup - Muscle development of livestock animals: physiology …, 2004 - cabidigitallibrary.org

    The role of trace element and mineral deficiencies (with emphasis on potassium, magnesium and zinc) on the growth, protein synthesis and growth factors in animals and children are …

    200410 citations
  • Noni (Morinda citrifolia L.): a hope in a bottle

    AR Malik, BN Dar, SH Wani - New biology: current developments …, 2009 - researchgate.net

    … Effective organic fertilizers for noni cultivation include crushed coral, dolomite, K-mag 7-7-7, and composted chicken manure and macadamia nut husks. Some locations will benefit from …

    20097 citations
  • Critical considerations for evaluating and applying insect frass

    IG Lopes, M Gómez-Brandón, N Praeg… - … Practical Guidelines and …, 2026 - brill.com

    … Partial replacements of synthetic inputs with organic amendments could enhance agricultural sustainability by improving soil health and resilience, reduce environmental footprints of …

    2026

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2023-09-25. DSLD Label ID: 295898. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.