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Performance and nitric oxide support
CALORIES · 100 G
GI
POTASSIUM · 100 G
FIBER · 100 G
1 teaspoon (small) of Citrulline supplement (3 g) has 12 calories. That works out to 400 calories per 100 g. It contains 3 g of carbs, 0 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 (small) · 3 g
12
KCAL / 3G
Carbs
3g
· 1% DV
Protein
0g
· 0% 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 100% · Protein 0% · Fat 0%
| Nutrient | Amount | % DV |
|---|---|---|
| Calories | 12 kcal | |
| Total fat | 0 g | 0% |
| Saturated fat | 0 g | 0% |
| Trans fat | 0 g | |
| Sodium | 0 mg | 0% |
| Total carbohydrate | 3 g | 1% |
| Fiber | 0 g | 0% |
| Protein | 0 g | 0% |
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 (small) | 3 g | 12 kcal |
| 1 teaspoon (medium) | 5 g | 20 kcal |
| 1 serving (medium) | 6 g | 24 kcal |
| 1 pack (mini) | 6 g | 24 kcal |
| 1 serving (large) | 8 g | 32 kcal |
| 1 tablespoon (large) | 9 g | 36 kcal |
| 2 teaspoon (double) | 10 g | 40 kcal |
| 100 g | 100 g | 400 kcal |
Calculated from 400 calories per 100 g.
A citrulline supplement may support nitric oxide production and blood flow because the body converts citrulline into arginine. People often take it for exercise performance, but research results vary and it is not a treatment for a medical condition.
L-citrulline contains citrulline on its own, while citrulline malate combines it with malic acid. A serving of citrulline malate is not entirely citrulline, so compare the amount of actual citrulline listed on each product.
Many people take a citrulline supplement before exercise to support blood flow during training. The time it takes to have an effect can vary by product and person, so follow the label and see how you respond during a workout.
There is no single amount that suits every citrulline product or person. Follow the product directions and check whether the serving lists L-citrulline itself or citrulline malate, since the amount of active citrulline can differ.
A citrulline supplement can cause stomach discomfort, nausea, or diarrhea in some people. Taking more than the product recommends may make digestive symptoms more likely; stop using it if you develop persistent or concerning effects.
Citrulline may help relax blood vessels through its role in nitric oxide production, which can affect blood pressure. If you take blood-pressure medicine or already have low blood pressure, ask a healthcare professional before using it.
Citrulline may support processes involved in blood flow, but it is not a proven treatment for erectile dysfunction. Ongoing erection problems can have underlying causes, so seek medical advice rather than relying on a supplement.
Yes, citrulline and creatine are commonly combined, and there is no established direct interaction between them. Taking them together is not necessary, so follow each product’s directions and avoid exceeding its recommended serving.
Yes, a citrulline supplement can generally be taken with or without food. If it upsets your stomach, try taking it with a meal, and follow any specific instructions on the product label.
It may make a difference for some people: citrulline can support nitric oxide production, which is involved in blood flow during exercise. The effect on muscle pump is not guaranteed, and it should not replace training, food, or rest.
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 12 calories in 1 teaspoon (small) (3 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.
A Citrulline supplement provides citrulline, an amino acid that also occurs naturally in the body. It is sold in forms such as powder and capsules, and is commonly chosen by people looking for a workout-related supplement rather than a source of everyday nourishment.
Powder is usually stirred into water or a sports drink, while capsules are taken with water. Its taste and texture depend on the product, so a flavoured drink can be an easy pairing if you find the powder unappealing. It is not a meal or a meaningful source of protein or fat; the listed serving is about 3 g. Follow the product label when measuring it.
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 4
Ultra-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
— Not suitable
Paleo
— Not suitable
Whole30
— Not suitable
DASH
— Not suitable
Keto
— Not 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.