Studies show vitamin d can help reduce symptoms of chrons disease. newer ones claim deficient people may have longer lifes. is their truth to either?

Media science: The cmaj study was of very old folks and found a correlation that is almost certainly the result of some variable other than vitamin d intake (likely a variant in metabolism.) severe crohn's interferes with vitamin d absorption, likely explaining the effect. The media distort this stuff into "news" and this confuses everybody. If you have crohn's or not, consider a vitamin d supplement.