Even most doctors who treat patients with Alzheimer s recommend B12 as a general blood cell booster to help with cognitive abilities. Because a vitamin B12 deficiency can often result in an inability to focus and concentrate, students may also benefit from being tested for B12 levels. Vitamin B12 deficiency diet therapy has also been shown to reduce cravings. The grapefruit diet that has been around for a number of years is also known as the twelve day grapefruit diet because it is designed to be done for twelve days, with two days off, then resumed for twelve more days, and so on, until you lose the amount of weight you want to lose. For the most part, the twelve day grapefruit diet limits your calorie intake to a very minimal eight hundred calories per day. This helps to ensure that while you are exercising, you are less likely to do any damage, such as pulling a muscle. Such damage can be extremely painful at times and should be avoided when possible. Stretches help to make sure that you do not hurt yourself when you decide to exercise. The next thing you should do is your main set of exercising. Just 50 skips per day will have you burning calories but for best results try to add an extra 10 skips to your routine everyday. 3. Step-ups You can simply use your backyard steps for this one. Stepping up and down will have your heart rate elevated and the calories will be burning. Try to complete 3 sets of 20 steps every day, but increase the number of steps every few days as your body adjusts as your fitness levels rise. Your best bet is to follow the weight loss food pyramid it can answer all your questions about healthy eating. Fruits and vegetables are the most important things for a healthy diet and weight loss. Fruits are the way to go when you're craving something sweet, since they contain natural sugars and vitamins that make them healthier than sweet junk foods. A basic personal exercise program will consist of both cardiovascular exercise and strength training. Cardio exercise can be a simple jog outdoors, a run on the treadmill, or even performing aerobics along to a video. Strength training includes weight lifting, as well as activities like pushups, pull-ups, and crunches.