Willijan wrote: Does anyone know if Dr. McDougall has addressed what specific blood levels we need? I have never read anything where he mentioned what levels we should have, just that we need regular time in the sun.
In one webinar, he mentioned his wife Mary tested low. I'm not positive if he mentioned the exact number, but *think* it may have been around 20-ish if he did. He said she gets plenty of sun all year 'round so he doesn't worry about what the lab number is.
Something else has got to be going on to cause high levels of skin cancer in the population.
Pollutants in the air, the thinning of the ozone layer, more skin being exposed, unhealthy food compromising immune systems - I'm sure there are a number of reasons I'm leaving out.