I think the choices you can make about your food are restricted if you are on a very tight budget. Personally, I try to avoid eating things made in a factory and make most of my meals from scratch, but there again I am retired, have the time to shop around and cook, and I don't have hungry teenagers or picky children to feed. I was very influenced by John Yudkin, who in the 60s wrote of the sugar industry in his Pure, White and Deadly, and I think he was prescient in that so many cheap and filling foods are high in sugar, salt and heaven knows what else. I think its quite wrong that products aimed at children, such as high sugar breakfast cereals, can be advertised on TV when kids are watching. Some of the massive food giants sell us stuff high in fat and sugar, and then try to flog us so-called healthy foods such as low fat yoghurts high in sugar.