Which Company Has the Best Magnesium Glycinate?

According to the National Institutes of Health, nearly half of U.S. adults consume less than the recommended daily amount of magnesium. When seeking to supplement, finding the best magnesium glycinate is crucial, as this form offers superior absorption and is gentle on the stomach, supporting better sleep, muscle relaxation, and stress relief.

Quick Summary

This guide reviews and compares leading magnesium glycinate brands based on key factors like quality, absorption, and third-party testing. It helps you decide which supplement is most suitable for your health goals.

Key Points

• Bioavailability is Key: Magnesium glycinate and bisglycinate are highly absorbable and gentle on the stomach, making them superior to other forms like magnesium oxide.

• Look for Third-Party Testing: Top brands such as Thorne and Pure Encapsulations provide certifications (e.g., NSF) to ensure product purity and potency.

• Check Elemental Magnesium: Focus on the amount of elemental magnesium per serving, not just the total compound weight, for an accurate dose.

• Consider Your Needs: Choose a brand based on your specific goals, such as support for sleep, muscle relaxation, or stress reduction.

• Review Ingredients: Opt for brands that use minimal fillers and additives, ensuring a cleaner, more effective supplement.

• Evaluate Cost and Form: The best brand for you will balance product quality, your budget, and your preference for capsules or powder.

What Makes a Magnesium Glycinate 'The Best'?

Choosing a high-quality magnesium glycinate supplement requires more than just picking a popular brand. The best options are distinguished by their commitment to purity, bioavailability, and robust testing standards. Magnesium glycinate, often referred to as magnesium bisglycinate, is a chelated form where magnesium is bonded to the amino acid glycine. This chelation process is key to its benefits, as it prevents the compound from breaking down in the stomach, allowing for superior absorption in the intestines and minimizing common gastrointestinal side effects.

Third-Party Testing and Certifications

Reputable companies invest in third-party testing by independent organizations such as NSF International or USP. These certifications verify that the product's contents match the label and that it is free from harmful contaminants, heavy metals, and fillers. Brands like Thorne are known for their rigorous testing standards and NSF certification, making them a trusted choice.

Bioavailability and Purity

Bioavailability refers to how efficiently your body absorbs and utilizes a nutrient. For magnesium, the chelated glycinate form is far more bioavailable than cheaper, less effective forms like magnesium oxide. The best supplements also use minimal additives and fillers, ensuring a cleaner product. Pure Encapsulations, for instance, has a reputation for clean, hypoallergenic formulas.

Elemental Magnesium

When evaluating a supplement, the elemental magnesium content is more important than the total compound weight. The elemental amount specifies how much pure magnesium is available per serving. For example, a tablet with "850 mg of chelated magnesium glycinate" might only contain 120 mg of elemental magnesium. Checking this detail on the label ensures you are getting an effective dose for your health goals.

Comparing Top Magnesium Glycinate Brands

Several companies are consistently rated for their high-quality magnesium glycinate supplements. Here is a comparison of some of the leading brands, examining their unique selling points and product details.

Feature	Pure Encapsulations	Thorne	Life Extension	Doctor's Best
Elemental Mg/Serving	120 mg (1 capsule)	Varies by product (e.g., 200 mg/scoop for powder)	105 mg (1 capsule)	200 mg (2 tablets)
Certifications	GMP-certified	NSF Certified, GMP Compliant	GMP Certified	Non-GMO, Gluten-Free
Form	Powder in Capsules	Powder, Capsules	Vegetarian Capsules	Tablets
Best For	Clean, hypoallergenic formula	High-quality, easy-mixing powder	Trusted value brand	High absorption, chelated form
Key Benefit	Stress relief, sleep	Restful sleep, relaxation	Relaxation, sleep	Sleep, muscle relaxation

Deep Dive into the Top Contenders

Pure Encapsulations Magnesium (Glycinate)

Pure Encapsulations is widely considered a gold standard for quality and cleanliness. Their products are hypoallergenic and free from common allergens and unnecessary fillers, making them an excellent choice for individuals with sensitivities. Users praise the brand for its reliability and effectiveness in supporting sleep and relaxation. The powder-in-capsule form is well-tolerated and highly absorbable.

Thorne Magnesium Bisglycinate

Thorne is another highly reputable brand, especially known for its rigorous testing and NSF certification. The powder form is particularly popular among users who find it easy to mix and consume, with a pleasant citrus and monk fruit flavor. Thorne's formula is designed for optimal absorption and promotes relaxation and restful sleep without causing digestive upset.

Life Extension Magnesium Glycinate

Life Extension is a trusted brand with a long-standing reputation for quality ingredients. Their magnesium glycinate is a vegan-friendly and gluten-free formula that is praised for its efficacy in promoting relaxation and improving sleep quality. Many users note the great value and the fact that it is gentle on the digestive system, unlike other magnesium forms.

Doctor's Best High Absorption Magnesium

Doctor's Best offers a 100% chelated magnesium glycinate lysinate, which ensures maximum absorption. This supplement is a popular choice for those seeking to raise magnesium levels and support sleep and muscle relaxation. It is a reliable, budget-friendly option that delivers on its promise of high bioavailability.

How to Choose the Right Option for You

When deciding which company has the best magnesium glycinate for your specific needs, consider the following:

• Your Personal Needs: Are you prioritizing sleep, stress relief, or muscle function? While all these brands are effective, some users report better outcomes for specific goals with certain products.
• Budget: High-quality supplements often come with a higher price tag. Compare the cost per serving to determine the best value for your budget.
• Form: Do you prefer capsules or powder? Thorne offers a popular powder, while others primarily use capsules. If you have difficulty swallowing pills, a powder may be a better option.
• Digestive Sensitivity: If you have a sensitive stomach, brands like Pure Encapsulations and Thorne are known for their gentle formulas. Avoid less bioavailable forms like magnesium oxide, which can cause digestive issues.
• Third-Party Verification: Prioritize brands that provide third-party testing information, as this is the best indicator of product purity and quality.

Conclusion

Ultimately, there is no single "best" company for magnesium glycinate, as the ideal choice depends on individual needs, budget, and brand preference. However, leading brands like Pure Encapsulations, Thorne, Life Extension, and Doctor's Best consistently offer high-quality, bioavailable products that are effective for promoting relaxation, supporting sleep, and reducing muscle cramps. By considering factors like third-party testing, purity, and elemental magnesium content, you can confidently select a supplement that is right for you. While these brands represent some of the most reliable options, prioritizing third-party verification and a high-quality chelated form will ensure you get the best results from your magnesium supplementation. For more information on dietary minerals, visit the National Institutes of Health website. [https://ods.od.nih.gov/factsheets/Magnesium-Consumer/]

Additional Considerations

• Read Customer Reviews: Pay attention to recent customer reviews on trusted sites to gauge product consistency and efficacy.
• Consult a Healthcare Provider: For personalized advice, especially if you have existing health conditions or take other medications, consult a doctor.
• Source Transparency: Some brands are more transparent about their ingredient sourcing, which can be an important factor for some consumers.

Frequently Asked Questions

What is the difference between magnesium glycinate and bisglycinate?

The terms magnesium glycinate and bisglycinate are often used interchangeably. Bisglycinate simply means two glycine molecules are attached to the magnesium molecule, which is the standard form for chelated magnesium glycinate and helps improve absorption.

Why is magnesium glycinate better than magnesium oxide?

Magnesium glycinate is significantly more bioavailable and better absorbed by the body than magnesium oxide. Oxide has a lower absorption rate and is more likely to cause digestive upset, making it a poor choice for addressing a deficiency.

When is the best time to take magnesium glycinate?

For most people seeking improved sleep and relaxation, the best time to take magnesium glycinate is in the evening, about 30 to 60 minutes before bedtime. However, it can be taken at other times for daytime stress relief without causing sudden drowsiness.

Can magnesium glycinate cause diarrhea?

While excessive doses of any magnesium can cause digestive issues, magnesium glycinate is known for being gentle on the stomach and is far less likely to cause diarrhea than other forms, like magnesium citrate or oxide.

How much elemental magnesium should I look for?

For adults, a typical daily supplemental dose ranges from 200 to 400 mg of elemental magnesium. Always read the supplement label carefully to determine the elemental amount, as this is the most accurate measure of dosage.

Is third-party testing important for supplements?

Yes, third-party testing by independent organizations like NSF or USP is crucial for supplements. It verifies that the product contains the ingredients listed on the label in the stated amounts and is free from harmful contaminants, ensuring quality and safety.

Is magnesium glycinate good for sleep?

Yes, magnesium glycinate is a well-regarded supplement for supporting restful sleep. It promotes relaxation and calmness by helping regulate neurotransmitters and can be particularly beneficial for those struggling with restless nights.