I don't actually eat bad food, I just eat lots of it. I never eat breakfast. I can't eat when I wake up, I feel sick. But if I do, my ideal breakfast would be a big fry-up, though with tinned tomatoes, not grilled, because I'm allergic to the seeds. They make my lips inflamed. But no black pudding. I used to work in this cafe that my aunt worked at, and I had to cook the black pudding. Yuk. It's rank. Usually I just have a fag and a cup of tea. PG Tips, two white sugars, semi-skimmed milk.

When I'm at home I'll have a tuna mayo sandwich for lunch, on thick white crusty bread, and then a cup of tea and a Custard Cream, or sometimes a Jammie Dodger. You can't leave the packet in front of me though. I'll eat them all. I live in north London with my mum who's an amazing cook. She makes chilli con carne, which is my favourite, and puts a bit of chocolate in to make it even richer. I love spicy food.

It's not easy to eat well on tour. When I'm here it's fine because you're familiar with things. But it's really hard in America: I must have eaten about 5,000 portions of fries. I do always ask for grapes though. I'm not allowed citrus fruit for my voice. After one gig your throat is worn out for two weeks anyway, and you can't not sing for two weeks, because it's your job to sing. So you can't really put that sourness on your vocal chords. You know if you have a hot toddy when you're ill? Imagine rubbing whisky and lemon into an open cut on your hand. I don't worry about avoiding dairy, like some singers - I only have milk in tea and I don't like yoghurt.

I have treats all the time. I used to have a real weakness for McDonald's strawberry milkshakes, but I've stopped having them, because apparently you have to walk 25 miles to burn one off. I don't walk half a mile a day, never mind 25! I let myself have one a year now. Me and my old flatmate Laura used to get a Chocolate Indulgence cake from Tesco every week and we'd have a bit every day, heated up in the microwave. That's still my favourite treat.

I cook for myself if I have time. I'm good at spaghetti hoops on toast, and scrambled eggs. I put the eggs in a saucepan and just leave it on a really low heat until they've gone all fluffy, and then chop some smoked salmon on top, and put it all on a bagel. I made these meatballs once, and put mozzarella inside them, and it all just melts.

I don't like cooking - it takes so long and I hate all the mess, but my new boy loves it, so that's great. He's good at lasagne and chilli, but my mum's is much better than his. He cooks this garlic and pepper chicken, with fried egg around it. I have that in a sandwich. I don't know how he does it, though, because I can't watch him cooking. I find it so boring.

· Adele's album, 19, is out now

Bagel with scrambled eggs and smoked salmon

There is evidence that the most satisfying foods are those that release sugar slowly into the bloodstream and are relatively rich in protein. Eggs and smoked salmon fit the bill here.

Grapes

Grapes do tend to pack quite a sugary punch, and are therefore perhaps not ideal if eaten in quantity. Still, these are clearly better than other foods Adele may find ready-to-hand in the States.

Chilli con carne

This is a blend of good wholesome, nutritious, natural and generally unprocessed foods including meat, onion, tomato and beans. My only advice to Adele would be to go easy on the rice.

Chocolate cake

The bulk of this food comes in the form of sugar and refined flour - two foodstuffs that will tend to disrupt Adele's blood sugar levels.

Spaghetti hoops

There may be some nutritional value in the tomato sauce, mainly because it's a source of lycopene, an antioxidant thought to help prevent cancer. However, the pasta and sugar are far from adequate nutritionally.

Tuna mayo sandwich

The filling leaves something to be desired in that mayonnaise is often laced with unhealthy partially hydrogenated fats. And white bread causes disruption of sugar and insulin levels - wholemeal would be a healthier choice.

PG tips

There is quite a lot of evidence now linking tea-drinking with a reduced risk of cardiovascular disease, and a recent study found it to be linked with a reduced risk of death in women. The two sugars may detract from the benefits though.