"Help Me Lose Weight Faster Please!"

The other day my 40-year-old female friend called me on the phone and said this: "Help me lose weight faster please!". She told me that she'd been trying to lose 15 pounds fast -- in less than 3 weeks -- by following a typical low-fat/low-calorie diet and jogging about half an hour on a treadmill 5 days a week. After nearly 2 weeks she had only lost 5 lbs. Plus she had low energy, felt bad