Vitamin D
The range includes vitamin D2 and D3, on their own and in combinations. Capsules, drops and sprays have different concentrations: always check the amount per capsule, drop or measured volume, as well as the product’s age suitability.
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Understanding vitamin D
Units, droppers, vitamin sources and differences between combined formulas.
What do IU and µg mean for vitamin D?
They are two units expressing the same quantity of vitamin D: 1 µg equals 40 IU. For example, 25 µg is 1000 IU. First convert to the same units, then compare serving sizes. The largest figure on the pack is not automatically the right choice; also consider other vitamin sources and any advice from your doctor when choosing a dose.
Is one drop the same as a full dropper?
No. Woldo Vitamin D3 1000 IU lists 1000 IU in 1 drop, while the local description of Viridian Liquid Vitamin D3 lists 1000 IU in 0.25 ml. For Viridian, use the measured volume rather than a drop count taken from another brand. Do not treat a full dropper as a serving unless the instructions explicitly say so.
Is every vitamin D product suitable for vegans?
No; check both the vitamin source and the capsule shell. Viridian Vitamin D Organic contains D2 from mushrooms, while its Vitamin D3 & K2 contains vegan D3 from lichen. Puhdistamo Super Vitamin D, by contrast, contains cod liver oil and bovine gelatine. The vitamin name or an oil carrier alone does not guarantee a vegan formula.
Does vitamin D always have to come with K2?
A combination is not compulsory whenever you buy vitamin D. Choose according to the ingredients you need and check the full formula: BJP Vitamin D3 + K2 + K1 contains both named forms of vitamin K. If you take warfarin or a similar medicine, discuss adding vitamin K with your doctor first, as it can affect that treatment.
Can I switch children’s drops without changing the drop count?
No. Puravia Vitamin D3 for children in olive oil lists 400 IU in 1 drop, but its D3 VEGAN version for children lists 400 IU in 2 drops. A similar name does not mean the same concentration. When changing bottles, check the exact version, age suitability and instructions; for infants, follow the dose agreed with their paediatrician.
Vitamin D may also be present in omega oils and multivitamins. For help comparing pack information, contact info@bjp-store.cz.