>>2315927Sort of yeah, depends on where you live. Further up north peeps don't get as much uvb thru colder months. Either way the question was asking about having more nutrients, so having uvb treated mushrooms is another added value for the customer. You might even be able to dehydrate, pressure can or free dry those uvb treated mushrooms, so that you have a good source of vitamin d rich mushrooms stored up to eat during the winter when theirs less sun/uvb
https://dualight.com/best-time-to-get-vitamin-d-from-sunlight/https://www.youtube.com/watch?v=mWnlBo6sqa8 