It is very important for you to get regular physicals, so your doctor can be aware of any changes in your health. If you start gaining weight, you need to make sure that there isn't a health reason for your weight gain. Your physician can provide you with healthy tools for your weight loss journey and monitor your progress. If you hit a road block, he can help you figure out why. If you are on any medications with dietary restrictions, it's important that your doctor is involved.