Glycine Supplement Ingredient

Impact

High effect

Typical dose:1000–5000 mg

As a primary building block for collagen, glycine directly supports skin and joint integrity. Its role as a rate-limiting precursor for glutathione synthesis is critical for combating age-related oxidative stress. Furthermore, by acting as an inhibitory neurotransmitter, glycine improves sleep quality, which is essential for cellular repair, hormonal regulation, and cognitive restoration.

Study evidence

14 studies

Glycine is linked to biological processes involved in aging, but the supplied evidence does not establish that taking glycine alone slows aging. Promising human supplementation results involve glycine combined with another ingredient, while observational findings are inconsistent.

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Anti-Inflammatory Support

Impact

High effect

Typical dose:1–5 g

Glycine acts as an immunomodulatory agent, calming immune cells like macrophages and reducing the production of key inflammatory messengers such as TNF-alpha. It is a fundamental component for managing systemic inflammation and supporting tissue repair.

Study evidence

7 studies

Glycine has preliminary evidence for reducing selected inflammatory markers in people with diabetes or cystic fibrosis. Broader anti-inflammatory benefits remain uncertain, because much of the other supportive research involves dental cleaning procedures or glycine combined with another supplement.

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Bone Health

Impact

High effect

Typical dose:1000–5000 mg

As the primary amino acid in the collagen that forms the bone matrix, Glycine is fundamentally important.

Study evidence

6 studies

The available evidence does not establish that glycine supplements improve bone strength or prevent fractures. Dietary glycine has been linked to higher bone density in some women, but higher circulating glycine has also been associated with lower bone density and osteoporosis.

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Detoxification

Impact

High effect

Typical dose:1000–5000 mg

The liver uses glycine to conjugate (bind to) and neutralize specific toxins, such as salicylates and benzoate preservatives. It is a key amino acid for ensuring the body can process a wide range of common chemical exposures.

Study evidence

5 studies

Glycine helps the body remove certain compounds through a specific metabolic pathway. Preliminary research suggests supplements can improve this pathway in people with severe obesity and low glycine availability, but it does not establish a general detoxification benefit in healthy people.

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Digestive Health

Impact

High effect

Typical dose:1–5 g

Glycine is a primary component of collagen and plays a crucial role in synthesizing new connective tissue for gut repair. It also has direct cytoprotective and anti-inflammatory effects within the gastrointestinal tract.

Study evidence

6 studies

The available glycine research concerns medical rehydration mixtures for acute diarrhea, not everyday digestive health. Early findings suggested reduced stool losses, but later controlled trials generally found no added benefit over standard rehydration solutions, leaving ordinary glycine supplements unsupported for this goal.

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General Health

Impact

High effect

Typical dose:3–5 g

Glycine acts as an inhibitory neurotransmitter in the central nervous system, which can improve sleep onset and quality without causing grogginess. It is also a primary component of collagen, supporting joint and skin health, and is a rate-limiting precursor to the body's master antioxidant, glutathione.

Study evidence

4 studies

Glycine has shown promising effects on selected symptoms and health markers in specific patient groups, but the supplied evidence does not establish a broad General Health benefit. Research on specialist dental treatment also cannot be used as evidence for oral Glycine supplements.

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Glycine

Ingredient forms

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Positive Interactions

Negative Interactions

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Glycine

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Glycine 500 mg

Pharmaceutical Grade AjiPure Glycine 500 mg

Glycine 500 mg

Glycine 1000 mg

Glycine Powder

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Advanced Magnesium Complex

Glycine

Ingredient forms

Studies

add_circle_outlinePositive Interactions

remove_circle_outlineNegative Interactions

Melatonin 2 mg

Sleep Nighttime Powder

R.E.M. Maintenance

Glycine

Vitamin/Mineral Base Powder

True Calm

Sleep Nighttime Powder

Glycine 500 mg

Pharmaceutical Grade AjiPure Glycine 500 mg

Glycine 500 mg

Glycine 1000 mg

Glycine Powder

SharpMind Sleep

Advanced Magnesium Complex

Positive Interactions

Negative Interactions