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Antioxidant support, contains vitamin C
CALORIES · 100 G
GI
POTASSIUM · 100 G
FIBER · 100 G
1 piece (small) of Quercetin Ester-C supplement (2 g) has 8 calories. That works out to 380 calories per 100 g. It contains 1.9 g of carbs, 0 g of protein, 0 g of fat and 0 g of fiber. Its 500 mg of Vitamin C covers 556% of the Daily Value. Its glycemic index is 5 (low), so it raises blood sugar slowly.
Selected: 1 piece (small) · 2 g
8
KCAL / 2G
Carbs
1.9g
· 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 | 8 kcal | |
| Total fat | 0 g | 0% |
| Saturated fat | 0 g | 0% |
| Trans fat | 0 g | |
| Sodium | 1 mg | 0% |
| Total carbohydrate | 1.9 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 piece (small) | 2 g | 8 kcal |
| 1 serving (medium) | 2 g | 8 kcal |
| 1 teaspoon (small) | 3 g | 11 kcal |
| 2 piece (double) | 4 g | 15 kcal |
| 1 tablespoon (medium) | 9 g | 34 kcal |
| 100 g | 100 g | 380 kcal |
Calculated from 380 calories per 100 g.
A quercetin Ester-C supplement combines quercetin with vitamin C in the Ester-C form. Ester-C is a buffered form of vitamin C; the product is a dietary supplement, not a medicine or a proven treatment for illness.
A quercetin Ester-C supplement provides vitamin C, which contributes to normal immune-system function. That does not mean the supplement prevents infections or treats them, and evidence does not establish quercetin as an immune-boosting treatment.
No, a quercetin Ester-C supplement has not been shown to reliably prevent colds or shorten them. Vitamin C is important for normal body function, but taking this combination should not replace usual care for cold symptoms.
No clear evidence shows that Ester-C in a quercetin Ester-C supplement works better than standard vitamin C for most people. Ester-C is a buffered form, but claims that it is substantially gentler or better absorbed are not firmly established.
You can take a quercetin Ester-C supplement with or without food; there is no universally required meal timing. If it causes stomach discomfort, taking it with a meal may make it easier to tolerate.
Follow the product’s directions for the amount of quercetin Ester-C supplement to take, and do not exceed them. The typical serving provided is one small piece, about 2 grams, but that alone does not establish how often to take it.
A quercetin Ester-C supplement may cause stomach upset, nausea, or headache in some people. Taking more than directed can increase the chance of unwanted effects; stop using it if you develop a significant reaction.
Yes, quercetin may affect how the body handles some medicines, so a quercetin Ester-C supplement could interact with prescription drugs, including blood thinners. If you take medication, ask your doctor or pharmacist before using it.
Yes, but adding a quercetin Ester-C supplement to other products containing vitamin C can raise your total intake. Large amounts of vitamin C may cause digestive problems, so avoid stacking supplements beyond their directions.
Daily use of a quercetin Ester-C supplement should stay within the product’s directions. The safety of long-term, high-dose quercetin use is not well established, and taking more than recommended has no proven added benefit.
Vitamins
Vitamin C
500mg · 556% DV
Vitamin A
0µg · 0% DV
B1
0mg · 0% DV
B2
0mg · 0% DV
Minerals
Sodium
1mg · 0% DV
Calcium
0mg · 0% DV
Iron
0mg · 0% DV
Magnesium
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 8 calories in 1 piece (small) (2 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.
Quercetin Ester-C supplement combines quercetin with Ester-C, a form of vitamin C, in a dietary supplement. The exact format can vary by product, so check whether yours is a tablet or another form and follow its label directions.
It is generally taken with water as part of a daily routine, often alongside a meal; it is not usually treated as a snack or served with tea. The nutrition figures are mostly carbohydrate by weight, but the typical serving is small, and it is not a source of protein. If you add it to your routine, stick to the amount stated on the package; taking it with a glass of water is a simple option.
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 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
✓ 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.