Product guide · Food supplement
FuelUp NAC 600 mg with Selenium 60caps – Antioxidant & Cellular Support
NAC and selenium capsules from FuelUp, 60 capsules. This guide sets out what the manufacturer states about the composition of FuelUp NAC 600 mg with Selenium 60caps, what independent research says about its main ingredients, and the safety and regulatory points that apply.
Back to the product- Named ingredients
- 2
- Amounts stated
- 1 of 2
- Status
- Food supplement
- Evidence summaries
- 2
Overview
Manufacturer informationFuelUp NAC combines 600 mg of N-acetyl cysteine, an amino acid derivative, with the trace mineral selenium, in a 60-capsule bottle.
Ingredients & composition
Manufacturer information| Ingredient | Amount |
|---|---|
| N-acetyl cysteine (NAC) | 600 mg per serving |
| Selenium | Not stated |
The manufacturer does not state the amount of 1 of the 2 ingredients. Without amounts, the research summarised in this guide cannot be related to this product's dose.
Scientific background
Independent researchN-acetylcysteine (NAC)
N-acetylcysteine (NAC) is a form of the amino acid cysteine and a precursor of glutathione, the body's main antioxidant. It is also used as a licensed medicine, for example as a mucolytic.
Selenium
Selenium is an essential trace element used in antioxidant enzymes and thyroid hormone metabolism.
Research evidence
Independent researchN-acetylcysteine (NAC)
A meta-analysis found that NAC can raise glutathione levels after physical exertion, with mixed effects on other markers of oxidative stress and muscle damage1.
Selenium
Authorised EU claims include that selenium contributes to the protection of cells from oxidative stress, normal thyroid function and normal immune function2.
Evidence limitations
Independent researchThis product does not state all ingredient amounts, so the doses used in research cannot be compared with what one serving provides.
The studies summarised in this guide examined single ingredients. No published study has tested this product or this combination of ingredients.
N-acetylcysteine (NAC)
Effects on performance in healthy people are not established1.
Selenium
Benefits beyond adequate intake are not established.
Safety & potential risks
- Do not exceed the recommended daily dose.
- Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.
- Keep out of the reach of young children.
N-acetylcysteine (NAC)
NAC can cause nausea and digestive upset; people with asthma or taking nitroglycerin should ask a doctor first.
Selenium
EFSA set a tolerable upper intake level of 255 µg a day for adults, based on hair loss as an early sign of excess selenium3.
Regulatory status
Sold as a food supplement. No health claims are made for this product.
Scientific references
- Sadowski M, Zawieja E, Chmurzynska A. The impact of N-acetylcysteine on lactate, biomarkers of oxidative stress, immune response, and muscle damage: a systematic review and meta-analysis. J Cell Mol Med. 2024;28:e70198. PubMed 39632267
- Commission Regulation (EU) No 432/2012 establishing a list of permitted health claims made on foods. Official Journal of the European Union. Source
- EFSA NDA Panel. Scientific opinion on the tolerable upper intake level for selenium. EFSA Journal. 2023;21:7704. DOI 10.2903/j.efsa.2023.7704
- Directive 2001/83/EC on the Community code relating to medicinal products for human use. Official Journal of the European Union. Source
- Directive 2002/46/EC on the approximation of the laws of the Member States relating to food supplements. Official Journal of the European Union. Source
Sources checked against PubMed, Crossref or the official publisher on 2026-11-04. Manufacturer information is taken from the product's own data and has not been independently tested.
The product
FuelUp NAC 600 mg with Selenium 60caps – Antioxidant & Cellular Support
€15,90