Takeaways aren't cheap. People living with poverty do not buy takeaways. A meal for a family of four from an Indian takeaway, say, will cost at least £50 - more than the weekly shopping budget of some families on a low income.
If you had £3 to feed a family of four, what are you going to choose? A pack of peppers is about £1.50, chicken breasts about a fiver, salad ingredients £3 or £4... But a couple of frozen pizzas and a massive bag of oven chips from Aldi will set you back £2.80 all in. And that will fill you up for far longer than a salad.
Before you suggest lentils and pulses and whatnot - they require seasonings and extras to make them tasty. All of which add to the total cost.
A large microwave lasagne is about £3 and will feed a family - plus it takes minutes to cook in the microwave. Many people can't afford to have their oven on for ages, slow cooking tough but cheap joints of meat or making 'cheap' casseroles.
When I was at my poorest I used to buy a packet custard creams for 25p and two packs of 15p noodles and that was my food for the day.
People who don't understand how poverty can make you fat, but still think that people living with poverty can afford takeaways, are some the most dangerously ignorant people you'll ever come across.