Fig. 2
![Fig. 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs13044-023-00162-8/MediaObjects/13044_2023_162_Fig2_HTML.png)
Free thyroxin levels alterations. Free thyroxin levels (FT4, ng/dL) under biotin containing supplements (gray bar) and 10-15 days after withdrawal (white bar); * p<0.05. Data presented as means± SEM
Free thyroxin levels alterations. Free thyroxin levels (FT4, ng/dL) under biotin containing supplements (gray bar) and 10-15 days after withdrawal (white bar); * p<0.05. Data presented as means± SEM