Hello, I'm new to myfitnesspal-- My name is Jen! I just started dieting and exercising about a week ago. I have been doing the body by vi shakes for 4 days now, and was wondering if anyone else is doing them? On day 1 I weighed 173.8lbs- Day 4-- I weigh 169.7 I am doing a shake for breakfast, and a shake for lunch and…