Vitamin and mineral deficiencies are common globally — even in food-secure populations, low vitamin D, B12, iron, and calcium intake affect a substantial share of adults, with higher rates in pregnancy, vegetarians, vegans, post-bariatric patients, the elderly, and patients on long-term metformin, PPIs, or anticonvulsants. The MedsBase Vitamins and Minerals catalogue carries 25 products covering single-vitamin, single-mineral, and multivitamin formulations supplied by WHO-GMP gecertificeerde fabrikanten.
Vitamin D and calcium. Vitamin D deficiency is the most common micronutrient deficiency worldwide. Cholecalciferol (vitamin D3) sachets at high dose (60,000 IU once weekly for 8 weeks then monthly maintenance) are available as Calcirol. Intramuscular cholecalciferol depot 6,00,000 IU for severe deficiency (single annual injection in selected cases) is stocked as Arachitol 6L Injectie. Activated vitamin D (alfacalcidol, for chronic kidney disease–related deficiency where renal 1-α-hydroxylation is impaired) is available as Alphadol. Calcium carbonate / citrate combinations with vitamin D for postmenopausal bone health are stocked as Cipcal en Topcal M (with magnesium and vitamin D). The bisphosphonate alendronate for osteoporosis treatment is listed as Osteofos.
Vitamin B12 and B-complex. Vitamin B12 deficiency causes macrocytic anaemia, peripheral neuropathy, glossitis, and (in severe cases) subacute combined degeneration of the spinal cord. High-dose oral cyanocobalamin 1500 µg works via passive diffusion (1% absorption is sufficient at these doses, bypassing intrinsic-factor dependence) and is non-inferior to monthly IM in pernicious anaemia. We stock Vitamin B12 1500 µg. Methylcobalamin IM injection for rapid replacement and diabetic neuropathy adjunct is available as Walcobal Injectie. Multi-B-complex parenteral and oral options include Polybion Ampoule, Beplex Forte, en Becozinc (B-complex with zinc). Thiamine 100 mg (alcohol-related neuropathy, Wernicke prophylaxis, beriberi) is stocked as Thiamine HCL 100.
Vitamin A. Chewable vitamin A is available as Vitamin A Chewable Tablet for documented deficiency (xerophthalmia, night blindness in malnutrition, post-bariatric malabsorption). Note: long-term high-dose vitamin A is teratogenic in pregnancy and hepatotoxic — supplementation should be guided by blood levels, not taken indefinitely as “general health”.
Vitamin C and antioxidants. High-dose vitamin C (ascorbic acid) for deficiency, wound healing adjunct, and as antioxidant is available as Celin and the C + zinc + multi-mineral combination C Vitan Z. Reduced glutathione (the major intracellular antioxidant; oral and IV use for non-alcoholic fatty liver and as adjunct in chemotherapy-induced peripheral neuropathy) is stocked as L-Glutathione en L-Glutathione 250mg.
Vitamin E and vitamin K. Vitamin E (alpha-tocopherol — antioxidant role; excess linked to bleeding risk and reduced statin benefit) is included in the multivitamin Multivite Gold and the topical E-Vitan Hair Oil. Vitamin K1 (phytomenadione — antidote to warfarin overdose, neonatal vitamin K prophylaxis, severe vitamin K deficiency in malabsorption / cholestasis) is stocked as Kenadion Injection.
Iron preparations. Oral iron (ferrous sulphate, ferrous fumarate) for iron-deficiency anaemia is available as Fesovit (ferrous fumarate + vitamin C + B-complex) and Feronia-XT. Take on an empty stomach for best absorption (1 hour before food) with vitamin C; expect dark stools. If GI tolerance is poor, alternate-day dosing improves absorption efficiency and tolerability per recent trials.
Multivitamins and minerals. Comprehensive multivitamin formulations include Multivite Gold and the metabolism / methylation-support combination Metabolis. The high-vitamin / mineral cardiovascular adjunct Cheri is also stocked.
L-Tyrosine + Iodine supplement. The Thyropace capsule contains L-tyrosine plus iodine and is sold as a thyroid-supportive nutritional supplement. Important — Thyropace is NOT a replacement for levothyroxine in diagnosed hypothyroidism (Hashimoto’s, post-thyroidectomy, post-radioiodine), and may worsen autoimmune thyroiditis flares because of the iodine load. It may help only in documented mild iodine deficiency (now rare in iodised-salt countries) or as a vegan-diet adjunct. Patients with confirmed hypothyroidism should be on levothyroxine — see our Underactive Thyroid Treatment category.
Hoe te kiezen. Confirmed deficiency (laboratory documented) → targeted single-vitamin or single-mineral replacement at therapeutic dose, then maintenance. Suspected deficiency in high-risk populations (pregnancy, vegan diet, post-bariatric, elderly, long-term metformin or PPI, alcohol use disorder) → check levels and replace specifically. General health “insurance” → modest-dose multivitamin once daily is reasonable, but megadose single vitamins are not benign (vitamin A teratogenicity, vitamin E + bleeding risk, beta-carotene + lung-cancer signal in smokers, calcium + cardiovascular signal at high supplemental doses).
Belangrijk. Take iron and calcium 4 hours apart from levothyroxine, fluoroquinolones, and tetracyclines — chelation reduces absorption of all parties. Vitamin K supplementation conflicts with warfarin — patients on warfarin should keep vitamin K intake stable (no sudden multivitamin starts or stops). Pregnancy: folic acid 400–800 µg daily from 3 months pre-conception through first trimester is mandatory; iodine and vitamin D continued throughout; vitamin A supplementation is restricted (retinol >700 µg / day teratogenic).
All MedsBase Vitamins and Minerals products ship from WHO-GMP gecertificeerde fabrikanten with discreet worldwide shipping and are covered by our Reshipment Assurance Policy.