Should I take 2000iu or 1000iu?
1000iu is the usual everyday choice. Higher strengths are generally taken for a specific reason or on advice, since vitamin D accumulates.
Is an oral spray better than a capsule?
Not inherently, but it is absorbed through the mouth, which suits anyone who struggles with capsules or has absorption issues.
Is there a vegan option at this strength?
Yes – lichen-derived D3. Ordinary D3 comes from sheep's wool and is not vegan.
Can I take this alongside other supplements?
Check what else contains vitamin D first. It appears in many products and accumulates in the body.