That does seem very unreasonable or misleading. If they are implying that everyone should just supplement, it would be bullshit, since current science as far as

That does seem very unreasonable or misleading. If they are implying that everyone should just supplement, it would be bullshit, since current science as far as i know is that supplementation hardly does anything. Impeoving vitamin d status through solving the underlying conditions that cause it, this may be an argument, but then it's phrased completely the wrong way.