The long-term benefits of a healthy diet are that it:

reduces your risk of health problems such as obesity, diabetes, heart disease, various cancers, high blood pressure, stroke, cataracts and osteoporosis
helps you stay fitter and healthier as you age
There are a number of dietary related risk factors which will lead to problems such as heart disease. These include high blood cholesterol and being overweightHigh cholesterol levels:-Cholesterol is a fatty type substance in the blood. It is produced by your liver or absorbed from some foods you eat. It is needed to make cell walls and some hormones.There are two types of cholesterol:Bad cholesterol ( LDL), and good cholesterol ( HDL). Bad cholesterol dumps itself inside your blood vessels. This allows cholesterol to build up and can result in a blockage. The job of good cholesterol ( HDL) is to pick up the cholesterol from your blood vessels and remove it from the body