Glycine

Safe OtherNatural

Glycine is a naturally derived other used in dietary supplements. Safety rating: Safe. It is widely considered safe at typical supplement doses. Found in 20 supplements in the GoodSupp database. An amino acid used as a dietary supplement and flavoring agent.

20 Products use this
Safe Safety rating
Other Category
Yes Natural origin

Safety Verdict: Safe

This ingredient is rated safe for use in dietary supplements.

What is Glycine?

An amino acid used as a dietary supplement and flavoring agent.

Common Names Glycine
Type Other
Origin Natural / Plant-derived
Safety Rating Safe

Why is Glycine used in supplements?

Glycine is used as a other in supplement manufacturing. It helps ensure product quality, stability, or proper delivery of the active ingredients.

Role in supplements: Other — serves a functional role in supplement formulation.

Should you be concerned about Glycine?

No. Glycine is widely regarded as safe for use in dietary supplements at typical levels. It has a long history of use and is accepted by major regulatory bodies.

No action needed. This ingredient is safe at amounts used in supplements.

Top-rated products containing Glycine

These 20 highest-scoring supplements in our database use Glycine.

Swanson Albion® Zinc, 30 mg, 90 Vegan Capsules
Swanson Albion® Zinc, 30 mg, 90 Vegan Capsules
Product 100 Brand N/A
Nature's Life DGL Licorice Chewable, 100 Tablets
Nature's Life DGL Licorice Chewable, 100 Tablets
Product 100 Brand N/A
Cold Eeze Cold Remedy, Zinc Gluconate Homeopathic, Natural Cherry, 25 Lozenges
Cold Eeze Cold Remedy, Zinc Gluconate Homeopathic, Natural Cherry, 25 Lozenges
Product 100 Brand N/A
Cold Eeze Cold Remedy, Zinc Gluconate Homeopathic, Natural Wild Cherry, 25 Lozenges
Cold Eeze Cold Remedy, Zinc Gluconate Homeopathic, Natural Wild Cherry, 25 Lozenges
Product 100 Brand N/A
Solaray Vital Extracts, Saffron, 30 mg, 30 VegCaps
Solaray Vital Extracts, Saffron, 30 mg, 30 VegCaps
Product 100 Brand N/A
NOW Foods C-1000 Zinc & D-3, 100 Veg Capsules
NOW Foods C-1000 Zinc & D-3, 100 Veg Capsules
Product 95 Brand N/A
The Vitamin Shoppe Magnesium Glycinate 400 mg
The Vitamin Shoppe Magnesium Glycinate 400 mg
Product 93 Brand N/A
Terry Naturally Healthy Feet & Nerves
Terry Naturally Healthy Feet & Nerves
Product 92 Brand N/A
Country Life Tropical Papaya, 500 Chewable Wafers
Country Life Tropical Papaya, 500 Chewable Wafers
Product 91 Brand N/A
Solaray Vital Extracts, Saw Palmetto & Pygeum with Zinc, 120 VegCaps
Solaray Vital Extracts, Saw Palmetto & Pygeum with Zinc, 120 VegCaps
Product 90 Brand N/A
Windmill Natural Vitamins Chewable C-250 (Ascorbic Acid & Sodium Ascorbate) Orange Flavored
Windmill Natural Vitamins Chewable C-250 (Ascorbic Acid & Sodium Ascorbate) Orange Flavored
Product 90 Brand N/A
Beyond Health Magnesium
Beyond Health Magnesium
Product 88 Brand N/A
Solaray Saw Palmetto & Pygeum with Zinc
Solaray Saw Palmetto & Pygeum with Zinc
Product 87 Brand N/A
Orange Naturals Orange Naturals Kids Zinc + Vitamin C, 90 Chewable Tablets, 90-Day Supply with 12mg Zinc & 100mg Vitamin C, Helps Build Immunity, Strong Bones and Teeth - Support Overall Wellness
Orange Naturals Orange Naturals Kids Zinc + Vitamin C, 90 Chewable Tablets, 90-Day Supply with 12mg Zinc & 100mg Vitamin C, Helps Build Immunity, Strong Bones and Teeth - Support Overall Wellness
Product 87 Brand N/A
Scitec Nutrition 100% Whey Isolate
Scitec Nutrition 100% Whey Isolate
Product 87 Brand N/A
Emergen-C Emergen-C 1000mg Vitamin C Powder, With Antioxidants, B Vitamins And Electrolytes, Immunity Supplements For Immune Support, Caffeine Free Fizzy Drink Mix, Raspberry Flavor - 30 Count/1 Month Supply
Emergen-C Emergen-C 1000mg Vitamin C Powder, With Antioxidants, B Vitamins And Electrolytes, Immunity Supplements For Immune Support, Caffeine Free Fizzy Drink Mix, Raspberry Flavor - 30 Count/1 Month Supply
Product 87 Brand N/A
Ener-C Ener-C Lemon Lime Multivitamin Drink Mix, 1000mg Vitamin C, Non-GMO, Vegan, Real Fruit Juice Powders, Natural Immunity Support, Electrolytes, Gluten Free, 1-Packs of 30 Lemon Lime
Ener-C Ener-C Lemon Lime Multivitamin Drink Mix, 1000mg Vitamin C, Non-GMO, Vegan, Real Fruit Juice Powders, Natural Immunity Support, Electrolytes, Gluten Free, 1-Packs of 30 Lemon Lime
Product 87 Brand N/A
Best Nest Wellness Best Nest Wellness - Mama Bird - Prenatal Multi+ (30 Servings) - Prenatal Vitamins for Women - Supports Baby Brain Health - Organic Herbs, Probiotics, Digestive Enzymes
Best Nest Wellness Best Nest Wellness - Mama Bird - Prenatal Multi+ (30 Servings) - Prenatal Vitamins for Women - Supports Baby Brain Health - Organic Herbs, Probiotics, Digestive Enzymes
Product 86 Brand N/A
Terry Naturally Clinical Essentials Multi-Vitamin & Minerals, 60 Tablets
Terry Naturally Clinical Essentials Multi-Vitamin & Minerals, 60 Tablets
Product 85 Brand N/A
Seeking Health Multivitamin One Chewable, 30 Tablets
Seeking Health Multivitamin One Chewable, 30 Tablets
Product 84 Brand N/A
Related Ingredients
Frequently Asked Questions
Is Glycine safe in supplements?

Yes. Glycine is rated safe for use in dietary supplements at typical levels. This rating is based on regulatory assessments, published safety research, and its long history of use in the supplement industry. It is widely accepted by major regulatory bodies including the FDA and EFSA. In GoodSupp's database, 20 products contain this ingredient. Consult your healthcare provider if you have specific concerns.

What is Glycine and why is it in my supplement?

An amino acid used as a dietary supplement and flavoring agent. It appears in 20 products in the GoodSupp database.

Is Glycine natural or synthetic?

Glycine is naturally derived, meaning it comes from natural sources such as plants, minerals, or animal products rather than being chemically synthesized. Natural-origin ingredients are preferred by many consumers, though it's important to note that 'natural' does not automatically mean 'safer' — safety depends on the specific substance, its purity, and the amount used. The safety rating assigned by GoodSupp is based on the ingredient's actual safety profile, not its origin.

Check Any Supplement's Ingredients

Scan a barcode with GoodSupp to instantly see safety ratings for every ingredient.

Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. 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.