My mother-in-law has had depression for 20 years, she's been overweight even with a personal trainer daily and lifting more weight than I could imagine, diabetes, and she's just downright annoying at times. She had weird fingernails, and her doctor finally told her to consult a dermatologist. Within seconds, the dermatologist determined she had a biotin deficiency. The M-I-L went online, and found that this deficiency can cause weight gain, depression, and a host of other problems. So this one simple vitamin turned her life around, supposedly.



Now she's suggesting it to her female friends, and they're claiming to feel 10 years younger and such. I can understand her relatives, because I'm sure genetics has something to do with it, but not every single woman she knows. Anyone ever heard of this stuff?