What is the recommended dosage for Selenium?

General: 55 mcg/day (RDA); Skin Health: 55-200 mcg/day

What are the side effects of Selenium?

Potential side effects include: Garlic breath odor, Nail brittleness and loss (selenosis), Hair loss (at toxic doses), Gastrointestinal disturbances.

What is selenium and how may it support skin health?

Selenium is a trace mineral that functions through selenoproteins, including glutathione peroxidase, protecting skin cells from oxidative damage. Adequate selenium is important for UV protection and immune defense in skin. Some research suggests selenium may play a role in preventing certain skin cancers and supporting skin elasticity.

What dosage of selenium has been studied for skin benefits?

Clinical studies have used 100–200 mcg of selenium per day. The RDA is 55 mcg. The Nutritional Prevention of Cancer trial used 200 mcg of selenized yeast. Selenium status varies by geographic region; supplementation is most relevant for individuals in selenium-deficient areas. Brazil nuts are a very rich dietary source.

What are the potential side effects of selenium supplements?

Chronic selenium excess (selenosis) causes garlic breath, hair loss, nail brittleness, and fatigue. The tolerable upper intake level is 400 mcg daily. High selenium status has been associated with increased type 2 diabetes risk. In selenium-replete populations, supplementation may not provide additional skin benefits.

Selenium
Selenium

mineral

Noto anche come: Selenomethionine, Selenium Yeast, Sodium Selenite, Selenocysteine

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About

Selenium is incorporated into selenoproteins (glutathione peroxidases, thioredoxin reductases) that protect skin cells from oxidative damage. The SU.VI.MAX trial found selenium-containing supplements may reduce skin cancer risk in men. The narrow therapeutic window (toxicity at > 400 mcg/day) requires careful dosing.

How It Works

Essential trace mineral incorporated into selenoproteins (glutathione peroxidases, thioredoxin reductases) that protect skin cells from oxidative damage; supports thyroid hormone metabolism affecting skin turnover; may modulate UV-induced inflammation and apoptosis.

Evidence For Conditions

Condizione	Grado	Studi	Partecipanti
UV Protection (Internal Photoprotection)	C	5	1800	Visualizza →

Side Effects

Garlic breath odor
Nail brittleness and loss (selenosis)
Hair loss (at toxic doses)
Gastrointestinal disturbances

Drug & Supplement Interactions

Cisplatin and other chemotherapy (may reduce drug efficacy)
Statins (may affect selenium status)
Blood thinners (theoretical interaction)

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Zinc Silicon (Silica) Copper

Informazioni rapide

Dosaggio: General: 55 mcg/day (RDA); Skin_Health: 55-200 mcg/day
Forme: capsule tablet liquid
Fonti naturali: Brazil nuts (1-2 provide daily needs), Seafood, Organ meats, Whole grains, Eggs
Limite massimo: 400 mcg/day (toxicity: selenosis)
Momento migliore: With meals

Riepilogo delle evidenze

UV Protection (Internal Photoprotection) C

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