Commercials that claim to offer 60 lbs of weight loss in 4 months might appear doable but it is an unrealistic goal as per weight loss theories. If you have a huge amount of weight to lose, 60 pounds of weight loss in a very short period of 4 months is not a safe goal. In order to lose 60 pounds in 4 months, you will have to lose an average of 3.75 lbs per week which is not quickly achievable even when following a medically supervised plan. However, you can make best of use of this 4 months to lose weight reasonably. To kick start your weight loss journey, you can also seek help of diet planners like Nutrisystem that provide weight loss up to 13 lbs and 7 inches in the first month. For your information, nutrisystem launched a new plan recently called Uniquely Yours Plus which offers both shelf stable and frozen varieties for convenient weight loss. In addition, the plan delivers 28 protein shakes that are fortified with probiotics and fiber to keep the dieters satiated between meals and rev up their metabolism.
To lose one pound you need a deficit of 3500 calories. Therefore, to lose 60 lbs you will have to burn 210000 calories than what you consume. If you have to achieve this in 4 months time, you will have to create a deficit of 1750 calories per day. This attracts a very stringent diet and strenuous exercise which is not feasible. A reasonable and recommended weight loss is losing up to 2 lbs per week and dipping below 1200 calories everyday will bring in nutrition deficiencies. What you can best do is limit your intake of sugary and high carb foods and increase the intake of foods that are low in fat and high in protein. Additionally, you can perform intense form of cardio exercise such as cycling, circuit training or jogging.