3 ms·
The experiment itself may be useless control; most people get D vitamins from the sun. How do we know the cohorts got the same D from sun exposure?
by scottlocklin 7y ago
The experiment itself may be useless control; most people get D vitamins from the sun. How do we know the cohorts got the same D from sun exposure?
- AstralStorm 7y agoShould use a blood tests for vitamin D status, probably calcium, phosphate and K too instead of relying on self reported diet.