“I added it, and it comes directly from the article you didn’t read.”
Perhaps your level of English comprehension is not what you think it is.
“…white fat of mice who were fed FLs for 14 days eventually turned brown…”
“Compared with white adipose tissue, BAT (brown adipose tissue) has more mitochondria—subcellular organelles associated with energy production—which allows it to burn calories and produce heat by activating the mitochondrial uncoupling protein 1 (Ucp-1).”