mixed questions

they may be suffering from anemia (iron deficiency)

if they are a woman because of periods iron is lost each month.

Obesity

Coronary heart disease

Diabetes 

Obesity

eat at least 5 portions of fruit and vegetables per day

only having sweets and chocolate as treats

drinking alcohol in small amounts

avoid adding extra salt to foods

Choose low fat foods instead of full fat foods 

Avoid frying food grill it or bake it instead

snack on fruit and vegetables instead of sweets and crisps