My father is suffering from obesity problem. N he couldn't reduce his weight. His age is 60. Weight is .79. His b.p is now 100/140. He is non smoker. Non drinker. He has no serious health problems. But obesity. He is mentally worried now. He usually walks. But same result. Tell me. Food habit. Daily life style habit which will help him to reduce his weight. What to eat n what to avoid. please help me.