Summer is almost here. What would you suggest for losing weight Drastic Weight Loss Techniques vs Healthy Weight Loss Techniques

I am a little over weight and need to loose some pounds before summer hits. I am 25 years old male, I want to loose the weight fast but in a healthier way. would you guys suggest doing a crash diet and lose the weight or should I lose it in a more healthy way by exercising. What do you guys think of using some of those weight loss supplements