Jake Gyllenhaal – Gained 15 Pounds Of Muscle
When we look at Jake Gyllenhaal’s face, we can’t believe he played tough boxer Billy Hope in the film Southpaw. Weight gain and muscle gain training became a daily activity for the actor, who worked out for six months at a rate of six hours per day to get into character. The daily routine included weightlifting, 2000 sit-ups per day, boxing, running eight miles, and tossing a 350-pound tire. It was successful. With trainer Terry Claybon’s help, Gyllenhaal went from 147 pounds to a buff 175 pounds in just over six months.

Jake Gyllenhaal – Gained 15 Pounds Of Muscle
Scarlett Moffatt – 42 Pounds – Strict Diet
Scarlett Moffatt’s stunning weight loss of 42 pounds completely transformed her appearance; in a positive way, of course! She released a witness DVD following her weight loss to share her workout routine. Moffatt also followed a strict diet plan devised by her personal trainer, in which she was limited to 1350 calories per day. Her strict diet clearly worked, as she went from a size 18 to a size 8!

Scarlett Moffatt – 42 Pounds – Strict Diet