Cod liver oil carries vitamin A and D as well as omega-3. Compare label amounts with upper limits and see who should check with a professional first.
What research has found about multivitamins after 50, which label lines matter most (B12, vitamin D, iron, vitamin A), a worked label example and what to ask first.
What trials show about taking vitamin D3 with K2, how 4,000 IU compares with NHMRC, US and EU upper limits, the warfarin interaction and how to read a combination label.
How Australians get vitamin D from sun safely using the UV Index, who runs low, Medicare testing rules, trial results and how advice differs overseas.