{"product_id":"argalys-vitamine-b12-iode-selenium-pd-0359","title":"Argalys — Vegan Vitamin B12 1000 µg + Iodine \u0026 Selenium","description":"\u003cp\u003eVitamin B12 is absent from all unfortified plant-based foods. Its supplementation is medically mandatory for vegans and strongly recommended for vegetarians by all nutrition authorities. B12 deficiency develops slowly (due to large liver reserves), but its consequences, when they occur, affect the central nervous system and red blood cell synthesis in a potentially irreversible way.\u003c\/p\u003e\n\u003cp\u003eVitamin B12 contributes to normal energy metabolism, normal nervous system function, reduction of fatigue, normal immune system function, normal red blood cell formation and plays a role in the process of cell division. Iodine contributes to normal thyroid system function, normal thyroid hormone production, and normal nervous system function. Selenium contributes to normal thyroid system function, normal immune system function, protection of cells from oxidative stress, and maintenance of normal hair and nails.\u003c\/p\u003e\n\u003cp\u003eThe Argalys formula is based on a specific weekly dosage logic for vitamin B12. Active absorption (via intrinsic factor) is saturated at approximately 2-3 µg per dose. At very high doses like 1000 µg, a second mechanism is activated: passive diffusion, independent of intrinsic factor, which absorbs approximately 1% of the dose. 1000 µg × 1% = ~10 µg absorbed passively, plus ~2 µg actively = ~12 µg per capsule. At 2 capsules per week = ~24 µg per week, or ~3.4 µg\/day — above the daily needs of adult vegans. This weekly format simplifies compliance and is documented by EFSA as a valid approach for B12 supplementation.\u003c\/p\u003e\n\u003cp\u003eCyanocobalamin is the most stable form of B12 (important for product preservation) and the most studied in high-dose supplementation trials. It is converted into methylcobalamin and adenosylcobalamin by the body. For profiles with MTHFR polymorphism or atrophic gastritis, methylcobalamin may be preferred — this point deserves to be addressed in personalized advice.\u003c\/p\u003e\n\u003cp\u003eIodine and selenium, two often insufficient intakes in vegan diets, complete the formula. At a dosage of 2 capsules per week, the product provides an average of ~43 µg of iodine per day (approximately 29% of the daily NRV of 150 µg) and ~29 µg of selenium per day — basic intakes without excess, to be supplemented with varied food sources. For vegan children aged 8 to 12 and flexitarians: 1 capsule per week. From 8 years old. Certified vegan by The Vegetarian Society. Made in France. Registered with DGCCRF.\u003c\/p\u003e","brand":"Argalys","offers":[{"title":"Default Title","offer_id":53856508805457,"sku":"PD-0359","price":19.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1032\/7094\/1009\/files\/argalys-vitamine-b12-iode-selenium-pd-0359-1-hd.jpg?v=1788396055","url":"https:\/\/paradermia.com\/en\/products\/argalys-vitamine-b12-iode-selenium-pd-0359","provider":"Paradermia","version":"1.0","type":"link"}