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Non-essential amino acid, involved in protein synthesis
CALORIES · 100 G
GI
POTASSIUM · 100 G
FIBER · 100 G
1 teaspoon (medium) of Glycine (4 g) has 16 calories. That works out to 400 calories per 100 g. It contains 0 g of carbs, 4 g of protein, 0 g of fat and 0 g of fiber. Its glycemic index is 0 (low), so it raises blood sugar slowly.
Selected: 1 teaspoon (medium) · 4 g
16
KCAL / 4G
Carbs
0g
· 0% DV
Protein
4g
· 8% DV
Fat
0g
· 0% DV
Fiber
0g
· 0% DV
DV is the share of the daily value covered, on a 2,000 kcal reference diet.
Calories come from: Carbs 0% · Protein 100% · Fat 0%
| Nutrient | Amount | % DV |
|---|---|---|
| Calories | 16 kcal | |
| Total fat | 0 g | 0% |
| Saturated fat | 0 g | 0% |
| Trans fat | 0 g | |
| Sodium | 0 mg | 0% |
| Total carbohydrate | 0 g | 0% |
| Fiber | 0 g | 0% |
| Protein | 4 g | 8% |
Calories: Calories measure energy. Average daily need is 2,000 kcal. Excess calories are stored as fat, too few cause weight loss.
Carbs: Your body's primary energy source. The brain runs exclusively on carbs. Daily need: 275g.
Protein: Essential for muscle repair and cell growth. Daily need: 50g. Keeps you full and boosts metabolism.
Fat: Needed for hormone production and vitamin absorption. Daily need: 78g. Limit saturated fats, choose unsaturated.
Fiber: Critical for digestive health and satiety. Daily need: 28g. Stabilizes blood sugar, lowers cholesterol.
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| Serving | Amount | Calories |
|---|---|---|
| 1 teaspoon (medium) | 4 g | 16 kcal |
| 1 g | 1 g | 4 kcal |
| 1 piece (small) | 2 g | 8 kcal |
| 1 serving (small) | 5 g | 20 kcal |
| 1 serving (large) | 10 g | 40 kcal |
| 1 tablespoon (medium) | 12 g | 48 kcal |
| 1 pack (medium) | 50 g | 200 kcal |
| 100 g | 100 g | 400 kcal |
Calculated from 400 calories per 100 g.
Glycine is a non-essential amino acid, meaning the body can make it. It helps build proteins and is especially abundant in collagen; it is also sold as a standalone powder or capsule supplement.
Some small studies suggest glycine may improve perceived sleep quality and next-day alertness when taken before bed, but it is not an established treatment for insomnia. Ongoing sleep problems deserve attention beyond supplements.
Glycine contributes to protein production and forms part of collagen and other proteins. It also acts in the nervous system. Taking extra glycine has not been shown to improve every process in which the body uses it.
There is no single proven dose that suits everyone or every purpose. A typical serving listed here is one medium teaspoon, about 4 grams; follow your product’s directions rather than estimating a larger serving.
Glycine supplements can cause digestive symptoms such as nausea, loose stools, or stomach discomfort in some people. Stop taking it if you feel unwell, and ask a healthcare professional about possible issues with your medicines.
Glycine occurs in protein foods such as meat and fish, and is especially abundant in collagen-rich connective tissue, skin, and gelatin. The body also makes glycine, so a supplement is not automatically needed to obtain it.
No. Glycine is one amino acid, while collagen is a protein made from amino acids, including glycine. Collagen supplements contain glycine along with other amino acids; a glycine supplement does not provide the same protein mixture.
Some people use glycine daily, but a universally established long-term dose and duration have not been set. Follow the product directions, and seek medical advice before regular use if you take medication or have a health condition.
Glycine has not been shown to reliably lower blood sugar and should not replace diabetes medication or other prescribed care. If you have diabetes, ask your clinician before adding a glycine supplement to your routine.
Yes, glycine can generally be taken without food, and it can also be mixed into a drink. If it causes stomach discomfort, taking it with food may be more comfortable; follow the directions on your specific product.
Vitamins
Vitamin A
0µg · 0% DV
B1
0mg · 0% DV
B2
0mg · 0% DV
B3
0mg · 0% DV
Minerals
Calcium
0mg · 0% DV
Iron
0mg · 0% DV
Magnesium
0mg · 0% DV
Zinc
0mg · 0% DV
Sodium
0mg · 0% DV
Potassium ⭐
0mg · 0% DV
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
To burn the 16 calories in 1 teaspoon (medium) (4 g):
🚶
Walking (5 km/h)
🏃
Running (8 km/h)
🚴
Cycling
🏊
Swimming
Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.
Glycine is an amino acid found in proteins and also made by the body. Sold on its own, it is usually available as a powder or in capsules; the powder can be mixed into drinks or added to recipes. It contributes to protein synthesis, but it is not a substitute for complete protein foods.
Glycine powder has a mildly sweet taste and dissolves in water, so it is commonly taken mixed into a drink rather than served as a standalone food. It is not a traditional mealtime ingredient in most places. Pure powder provides 100 g of protein per 100 g, though a serving is much smaller; follow the product’s serving directions, and mix it into a beverage whose flavour you enjoy.
Low
How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.
Low
An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.
Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.
NOVA 3
Processed
1. Unprocessed
2. Minimally Processed
3. Processed
4. Ultra-Processed
NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.
No known major allergens
Vegan
✓ Suitable
Vegetarian
✓ Suitable
Gluten-Free
✓ Suitable
Dairy-Free
— Not suitable
Mediterranean
✓ Suitable
Paleo
✓ Suitable
Whole30
— Not suitable
DASH
— Not suitable
Keto
✓ Suitable
Low FODMAP
— Not suitable
SATURATED
0g
MONOUNSATURATED
0g
POLYUNSATURATED
0g
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Nutrition data compiled from USDA FoodData Central and scientific sources.