Dr. Daniel McCartney:

I wish to comment on one thing Professor Walsh said. We have identified a number of groups that are particularly susceptible to vitamin D deficiency across the population. This is really a whole-of-society problem and requires a whole population response even though we know that vitamin D deficiency is more prevalent in our older adults, BAME communities and certain other communities. Even in young people, it is extremely prevalent. About 50% of our young people aged 18 to 39 have low vitamin D levels at this time of year. It is across the population, which is why it requires a central intervention from the statutory health authorities.