My father aged 60 is kind of overweight and has hernia problem as well, though not serious, he's somewhat obese and overweight, he's around 5.5" and weighs around 75 Kgs, he wants to lose some weight so that he can be more productive in everyday chores. He wants some nutritional advices and diet plans, he usually goes on walks, but those things are not helping him much, can you please help for some everyday habits that he can inculcate in his daily life, be it diet plans, walks, etc.