Slim fast diet plan can be tailored based on individual needs. Slim fast diets like optima, low carb and high protein diet helps lose weight. Slim fast shakes, bars, powders helps you plan your weight loss.

Losing weight quickly in 1 week is possible: eat dinner 3 hours before going to bed, walk for about 30 minutes each day, drink more water, eat less portions but often.

Gaining weight the healthy way can be a challenge. Being underweight and feeling weak maybe due to some illness or improper diet. Exercise and proper diet can help you gain muscle and body weight that will give your body more energy and keep you active.