Yan, you might want to take a look at three articles I published here on ATP (Garlic I, Garlic II, and Garlic III). There is quite a bit of information there (that's why it took three articles). They were all published in May, 2015.
drdawg (Dr. Kenneth Ramsey)
The reason it's so hard to lose weight when you get up in age is because your body and your fat have become good friends.