Hi thanks for asking question. Noted you have not mentioned which cardiovascular disease present.. You are taking petogen ..This petogen having side effect of weight gain.. So you have weight gain because of this. To loose your weight,with calorie restriction , calories also has to be burnt. For that do mild to moderate exercise like running, jogging etc. Take low fat diet. Green leaf vegetables taken more. As you have cardiovascular disease take low salt diet. Avoid junk foods... It would be better if you provide detailed history regarding cardiovascular complain then we can help you further.... I hope my suggestion will helpful to you... Take care