It now appears most of us need about 5,000 units a day if we avoid the sun. The government was off b

It now appears most of us need about 5,000 units …

It now appears most of us need about 5,000 units a day if we avoid the sun. The government was off by a factor of ten; an ,i>“order-of-magnitude error.”,/i> Mistakes of this scale are rare in medicine.

John Cannell