To lose fat you need both a caloric deficit and hormonal balance. To lose stubborn fat, particularly stubborn belly fat, you need to understand the hormones involved. In women those hormones are: insulin, cortisol, estrogen, progesterone, and testosterone. And of course the major fat burning hormones, the catecholamines.
Grilling the Meat. If you've marinated the meat in the refrigerator, take it out while the grill is heating up. Remove it from the marinade and place the London broil on the hot grill. Cook the meat for approximately 8 to 10 minutes on each side until the internal temperature reaches 130 to 135 F for medium-rare. Although the U.S. Department of Agriculture recommends cooking beef to a minimum of 145 F, cooking London broil to higher temperatures typically yields tougher meat.
1Combine the marinade ingredients in a glass bowl and whisk together to combine thoroughly. 2Place the London broil steak in a large, re-sealable bag. 3Pour in the marinade and seal the bag, squeezing out as much air as possible and then place the bag in a refrigerator for 4 - 6 hours or overnight. Turn the bag at least once during that time to make sure all of the sides of the steak get some soy lovin'.