Perdue Mg Plus Guard Magnesium supplement bottle
Perdue

Mg Plus Guard Magnesium Review

What We Researched
7 active ingredients analyzed · Page generated: Sep 2026
72
Product Score Fair
60
Brand Score Fair

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Magnesium (as ionized glycinate) 85.0 mg 20%
Magnesium (as ascorbate) 8.0 mg 2%
Magnesium (as citrate) 17.0 mg 4%
Total Elemental Magnesium 110.0 mg 26%
Vegetable Capsule 100.0 mg †
Vegetable Fiber 37.5 mg †
C16 and C18 alkyls 7.0 mg †
Bioavailability Excellent

Absorption Rating

  • Magnesium (as ionized glycinate) Good
  • Magnesium (as ascorbate) Good
  • Magnesium (as citrate) Good
  • Total Elemental Magnesium Good
  • C16 and C18 alkyls Fair
Other Ingredients Excellent

Fillers & Additives

No inactive ingredient data available.

Efficacy Very Poor

Dosage Analysis

  • Magnesium (as ionized glycinate) 85.0 mg Under-dosed
  • Magnesium (as ascorbate) 8.0 mg Under-dosed
  • Magnesium (as citrate) 17.0 mg Under-dosed
  • Total Elemental Magnesium 110.0 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Magnesium (as ionized glycinate) 85.0 mg 20%
Magnesium (as ascorbate) 8.0 mg 2%
Magnesium (as citrate) 17.0 mg 4%
Total Elemental Magnesium 110.0 mg 26%
Vegetable Capsule 100.0 mg †
Vegetable Fiber 37.5 mg †
C16 and C18 alkyls 7.0 mg †
Brand Trust Report
Perdue

Founded 1920 · Salisbury, Maryland, United States · 8 products · perduefarms.com

Transparency

2 claims
In House Testing — Claimed Unverifiable Evidence checked Evidence
Related Supplements
Frequently Asked Questions
Is Perdue Mg Plus Guard Magnesium a good supplement?

Perdue Mg Plus Guard Magnesium received a product quality score of 72/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 7 active ingredients with 180 servings per container. The manufacturer, Perdue, holds a brand trust score of 60/100.

What are the ingredients in Perdue Mg Plus Guard Magnesium?

Perdue Mg Plus Guard Magnesium contains 7 active ingredients: Magnesium (as ionized glycinate) (85.0 mg), Magnesium (as ascorbate) (8.0 mg), Magnesium (as citrate) (17.0 mg), Total Elemental Magnesium (110.0 mg), Vegetable Capsule (100.0 mg), Vegetable Fiber (37.5 mg), and 1 more. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Perdue Mg Plus Guard Magnesium safe to take?

GoodSupp reviewed the inactive-ingredient data available for Perdue Mg Plus Guard Magnesium. This label analysis cannot determine whether the product is safe for a particular person, and source labels may change. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Perdue a trustworthy supplement brand?

Perdue receives a brand trust score of 60/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1920 and headquartered in Salisbury, Maryland, United States, the company offers 8 products in their lineup.

What is magnesium good for?

Magnesium Good For is a topic many supplement consumers ask about. In the context of dietary supplements, understanding magnesium good for helps you make more informed choices about what you put in your body. The quality and form of ingredients matters significantly — two products listing the same ingredient can differ dramatically in bioavailability and effectiveness. GoodSupp analyzes over 150,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.

How much magnesium per day?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

What is zinc good for?

Zinc Good For is a topic many supplement consumers ask about. In the context of dietary supplements, understanding zinc good for helps you make more informed choices about what you put in your body. The quality and form of ingredients matters significantly — two products listing the same ingredient can differ dramatically in bioavailability and effectiveness. GoodSupp analyzes over 150,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records — read our methodology. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.