"There is no known level of UV exposure that would increase vitamin D levels without also increasing skin cancer risk." This seems off to me. Sounds like they'

"There is no known level of UV exposure that would increase vitamin D levels without also increasing skin cancer risk." This seems off to me. Sounds like they're saying there's no known safe level of sun exposure. I wasn't able to find any studied, including on thier page, supporting that. Most of the studies I saw actually use infrequent UV exposure populations for the baseline. Are there any studies that show 5 minutes of exposure a day is significantly worse than 0 minutes?