Not yet investigated
What we have so far
White fat cells that switch on UCP1 when asked. The browning agents sold for this work reliably in mice and have never been shown to matter in a person.
This star is on the map because the show intends to take the question apart properly — the trials, how it is actually tested, whether the thing sold is the thing studied. That work is not done yet, and nothing here should be read as a conclusion. When the investigation is published it will appear on this page.