Is losing extra kilos a constant struggle for you? If so your body's metabolism rate could be the cause. Althea Shah fitness expert and VP marketing Gold s Gym India shares warning signs that you have a slow metabolism. And if you think you have one of these signs follow these tips to boost your metabolism. You just don't feel hungry: If you don t feel hungry in the morning and can go without eating anything till the lunch time you have a slow metabolism. If you are awake and alert you should not go four hours without feeling hungry.