Ready & Packaged Foods
All →Vegetables & Legumes
All →Desserts & Confectionery
All →Meat & Protein
All →Grains & Bakery
All →Beverages
All →Milk & Dairy
All →
NAC supplement Calories
Antioxidant precursor supplement
CALORIES · 100 G
GI
POTASSIUM · 100 G
FIBER · 100 G
Quick answer
1 piece (small) of NAC supplement (1 g) has 2 calories. That works out to 400 calories per 100 g. It contains 0 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.
NAC supplement Nutrition Facts
Selected: 1 piece (small) · 0.6 g
2
KCAL / 0.6G
Carbs
0g
· 0% 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 0% · Protein 0% · Fat 100%
NAC supplement nutrition facts table · 1 piece (small) (0.6 g)
| Nutrient | Amount | % DV |
|---|---|---|
| Calories | 2 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 | 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.
Log this food in EatBetter
100,000+ people use it
- Get your daily calorie target
- Snap your meal, log it in seconds
- See every vitamin and mineral
📸 Scan the code to get the app free.
How Many Calories in 1 Small NAC supplement?
| Serving | Amount | Calories |
|---|---|---|
| 1 piece (small) | 0.6 g | 2 kcal |
| 1 serving (medium) | 0.6 g | 2 kcal |
| 1 g | 1 g | 4 kcal |
| 2 piece (double) | 1.2 g | 5 kcal |
| 1 serving (large) | 1.2 g | 5 kcal |
| 1 teaspoon (quarter) | 2.5 g | 10 kcal |
| 1 teaspoon (half) | 5 g | 20 kcal |
| 100 g | 100 g | 400 kcal |
Calculated from 400 calories per 100 g.
Frequently Asked Questions About NAC supplement
What is an NAC supplement?
An NAC supplement contains N-acetyl-L-cysteine, a compound related to the amino acid cysteine. The body uses cysteine to make glutathione, and supplements commonly come as capsules, tablets, or powder.
What is an NAC supplement used for?
People take NAC supplements as a source of cysteine, which the body uses to produce glutathione. Being sold as a supplement does not mean it is proven to prevent or treat every condition for which it is promoted.
Does an NAC supplement raise glutathione levels?
NAC can provide cysteine, a building block the body uses to make glutathione, so it may support glutathione production. That role does not guarantee a particular health benefit or the same effect for every person.
Can an NAC supplement loosen mucus?
Yes, acetylcysteine is also used as a mucolytic medicine that can make thick mucus easier to clear. A supplement should not be treated as a substitute for medical care or a prescribed treatment for a respiratory condition.
Is an NAC supplement the same as acetylcysteine medicine?
NAC is another name for N-acetylcysteine, the active compound called acetylcysteine in many medicines. However, supplement and medicine products can differ in formulation, intended use, and oversight, so do not assume they are interchangeable.
How should you take an NAC supplement?
NAC supplements are sold as capsules, tablets, and powders, and directions vary by product. Follow the instructions for the specific supplement and do not use it as a replacement for a dose of prescribed acetylcysteine.
What are the side effects of an NAC supplement?
NAC supplements can cause nausea, stomach upset, diarrhea, or headache; skin rash can also occur. Stop taking the supplement and seek help if you develop a severe or unexpected reaction.
Can you take an NAC supplement every day or long term?
Daily or long-term use of an NAC supplement is not automatically suitable for everyone; safety can depend on your health and the amount used. Long-term use has not been shown to benefit every person.
Can an NAC supplement interact with medications?
Yes. NAC can increase the risk of headache or low blood pressure when taken with nitroglycerin. If you take prescription medicines, ask your doctor or pharmacist before starting an NAC supplement.
NAC supplement Vitamins & Minerals
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
NAC supplement Glycemic Index
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
How to Burn Off NAC supplement
To burn the 2 calories in 1 piece (small) (0.6 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.
What is NAC supplement?
An NAC supplement provides N-acetylcysteine, a compound used in supplements rather than as an everyday food ingredient. It is commonly sold as a capsule or tablet, and is known as a precursor involved in the body’s production of the antioxidant glutathione.
People typically take an NAC supplement with water, following the directions on the product label; it is not usually mixed into meals or served as a drink. It is best thought of as a targeted supplement rather than a source of protein, carbohydrate or fat in the diet. If you take medicines or have a health condition, check with a healthcare professional before using it.
How Nutritious Is NAC supplement?
Satiety score
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.
Is NAC supplement Processed?
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.
Does NAC supplement Contain Allergens?
No known major allergens
Which Diets Is NAC supplement Good For?
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
NAC supplement Fat Profile
SATURATED
0g
MONOUNSATURATED
0g
POLYUNSATURATED
0g
Compare NAC supplement
Foods Similar to NAC supplement
Have another question about NAC supplement?
Ask the AI nutrition coach — calories, portions, alternatives and more, answered in seconds in the app.
Scan calories with your camera
Instant AI nutrition analysis
Nutrition data compiled from USDA FoodData Central and scientific sources.