There are worries that making school food healthier will put pupils off eating it.
From September, the government plans to make all secondary school food in England much better for you.
What do you think? Should you have a choice about what you eat? Or should all school food be healthy to stop everyone getting fat?
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"In our school we have vegetables in our lunch and healthy food."
Loksum, 10, Hong Kong, China
"I think our school needs a lot of change. Just yesterday I had to eat brussel sprouts with lunch - you can't imagine how gross it tastes!"
Edith, 10, Hong Kong, China
"In our school we have all healthy meals - except for pudding, where we get a muffin. It's up to us what we eat, but mostly people choose to have fruit for pudding."
Chloe, 10, Oxfordshire, England
"Well I guess I'm lucky. My school has pizza every Friday and we can order as much as we like. But that's the only day. The other school food is horrible. What's the point if no one wants to eat it?"
Xian, 12, Vancouver, Canada
"I think eating healthy is important for everyone and not all 'good' food tastes bad."
Sarah, 12, Pennsylvania, USA
"School meals are already healthy and we are old enough to choose what's right for us to eat."
Ciara, 11, London, England
"My school has a great mix of foods which are mostly healthy and tasty. On a Friday we get chips. I think our school doesn't need to get healthier because it is very healthy apart from one day, but it's ok to enjoy bad food in moderation."
Marcus, 9, London, England
"I think that our school dinners are really nice - there's lots of salad-like stuff and we can choose and take what we like."
Syndra, 14, Buckinghamshire, England
"School dinners are healthy already though. Now everyone is talking about obesity and being healthy and my friend who is already skinny thinks she is obese!"
Kaitlyn, 11, York, England
"School dinners are REALLY healthy already and are also disgusting! They should taste a lot better and we should get bigger portions too!!!"
Shivani, 10, London, England
"I think junk food is bad and healthy food is good."
Dhruv, 13, London, England
"School dinners are already healthy and half of the food is disgusting! Plus, we don't even get good portions. What's the point of making things even more ridiculously healthy?"
Liberty, 10, London, England
"I don't like school dinners because there is no proper food."
Zishan, 12, Derbyshire, England
"I think that school dinners should be much healthier."
Hussein, 13, London, England
"I think children should have a choice on what they pick. There's no point in changing the meals if the children are not going to eat them. My school has a choice, which I like."
Carly, 12, Gateshead, England
"My school is healthy. We always get healthy school awards and we have loads of choices for school dinners. We think it's great!"
Katie, 11, Cardiff, Wales
"I think that there should be less fat in our cheese toasties."
Amy, 12, Kent, England
"I think that our school dinners are healthy but some things on the menu are quite expensive though."
Alex, 11, Kent, England
"Our school dinners are all changing. We've got new food that is good and healthy."
Darcy, 11, Kent, England
"I think that the students should have a choice. A healthy choice, though. There could be two meals and a dessert like pudding. The food has to be appetising to stop people from wasting and skipping meals, particularly teenagers."
Christina, 13, London, England
"I think that to do more to school food is unnecessary. My school is already a healthy school and I know that we have a wide variety, including a salad bar. They're already following guidelines. Isn't it important to have a balanced diet anyway? This all seems a bit over the top."
Sarah, 14, Hertfordshire, England
"I think if you make the food too healthy it will taste gross and no one will eat it."
Bailey, 11, Wisconsin, USA
"I don't think that the meals at my school need to become any more healthy because they already are very good. We NEVER have chips and all of the main meals at lunch are served with at least one, if not two, portions of vegetables. We don't have any desserts or sweets e.g. cake, chocolate etc. and we follow the rules of a healthy school!"
Georgia, 13, Lincolnshire, England
"I think at each school in England there should be one class that get to choose a meal for the whole school to have for lunch."
Esther, 10, Essex, England
"I like the idea of eating healthy but it should taste nice or otherwise people will get bored of meals."
Eva, 9, London, England
"My school dinners were disgusting. They are healthy now. We have a salad bar - they are lovely."
Mikayla, 6, London, England
"I think it's our choice what we eat and do not eat. I think it is absolutely ridiculous that the school is changing our meals. My school's food has only changed very slightly but the healthy stuff they do serve is appalling. I mean, honestly, the only nice healthy thing there is would be the salad and there is barely enough in the container to fill up a five-year-old!"
Yasmin, 13, London, England
"I think school lunches are already healthy. Yes, there are some unhealthy bits, but it's not like everything is unhealthy."
Serena, 11, London, England
"At our school we already have a healthy food menu and a junk food menu. Most people choose the junk food because the healthy food menu is horrible and is always the same."
Rebecca, 11, Newcastle, England
"Dinners are really healthy and we should not change them."
Jade, 10, Northern Ireland
"I was having hot dinners but they were always healthy food. Even when you are having packed lunches you can't bring in any fatty food at all."
Anna, 9, Merseyside, England
"At my school no one likes the lunches - we only eat them because we are hungry. They give us food that we haven't heard of and don't want to eat. On Friday though, everyone eats lunch because it is fish and chips. School dinners should be what we want to eat but healthy. E.G. BURGERS with not as much fat in them."
Rizwan, 13, Lancashire, England
"When we got a new head teacher we started off healthy but now we aren't anymore."
Taz, 10, West Midlands, England
"I go to a private school, so the government don't have anything to do with our school dinners! They are ALRIGHT, although there aren't many options."
Ruth, 11, Surrey, England
"At my high school there are lots of choices over what you can have to eat. Some people choose pizza or chips but lots of people go for a healthier option. I think that school meals are alright in secondary school because, by 11, you should be able to decide what you eat yourself - as you know what's healthy or not. Primary school children might need set meals as that may be what encourages them to eat healthily in the first place."
Katie, 12, Ipswich, England
"I think school dinners should not be more healthy because if they were then people would bring a packed lunch instead. All my friends take a packed lunch which upsets me!!"
Nadia, 10, Luton, England
"Our school dinners are DISGUSTING! The teachers say that they are 'healthy', but there is hair in them and they look like someone has thrown up on them! YUCK!!!!!"
Sepha, 11, London, England
"We have to bring a packed lunch as there is no food to buy at my school."
Aisling, 13, Ireland
"The food is not very appetising and it is overpriced. If we have to eat healthily then we could at least pay less for it!"
Alice, 12, Essex, England
"School dinners are too healthy as it is! We don't need MORE vegetables!"
Richard, 10, Kent, England
"I have to eat at school, and I can't go out at lunch and I think that school dinners are already healthy and the government is just trying too hard."
Hinna, 12, Surrey, England
"It is healthy enough already, changing it will make it worse."
Emma, 14, UK
"I think they shouldn't make it healthier, our school is healthy as it is, they don't need to change."
Conrad, 14, Buckinghamshire, England
"I think that going healthy is good but I am worried about the prices of food going up. Our school has really pricey food and if it's healthy it might go up even more!"
Harriet, 12, Hertford, England
"I think it could be made healthier but not too healthy because then kids won't eat it and it will be a waste of money."
Eve, 10, Belfast, Northern Ireland
In my school the meals are very healthy. Schools in Northern Ireland have been following a healthy eating programme for many years now. In my school there are always vegetables, fruit and salad to have with your dinner. We only have chips once a week. I think my school is doing a very good job at having healthy food."
Ruth, 10, Northern Ireland
"No, they shouldn't be healthier. Teachers and adults don't have to eat it so they shouldn't make the rules!"
Sophie, 11, North Yorkshire, England
"I don't like the idea of having just healthy foods but I also don't like having fatty foods either. Some of my friends who have hot meals don't even touch their food because it's so healthy! It's just a waste!"
Sanah, 9, Sheffield, England
"I really like my school dinners, which are great!!! They are already really healthy so I don't see what's wrong."
Helena, 13, London, England
"In my high school they ALWAYS serve pizza and sausages and it is not good, but there is a salad bar."
Justine, 12, Chester, England
"Our school meals are balanced, there isn't too much junk but there aren't a lot of fruit and vegetables either."
Rabiat, 12, Cumbria, England
"Well, in Holland everyone brings their own lunch and that's the best solution. Most people have two or three sandwiches and milk and that's it. It's low in calories and it's much more healthier than all the junk food!"
Roseanne, 14, Holland
"My school is good as we do not have unhealthy food every day because on a Friday we have chips for a treat, so I think that this is better."
Anya, 12, Milton Keynes, England
If the government makes healthier school dinners people won't eat them. They should just keep them how they are!"
Sarah, 14, London, England
"I think schools should have a healthy option as well as unhealthy, the government should stop being silly and let us eat what we want from the canteen!"
Lauren, 11, Wales
"In my school, there is hardly anything for vegetarians. Every single day, us veggies only have a choice of jacket potato with beans and/or cheese. I'm fed up with it!"
Losha, 12, London, England
"I think that it should be a mixture and it would be so unfair if everyone at school was made to eat all healthy food, all the time!"
Emma, 10, Belfast, Northern Ireland
"There has to be a balance between normal school meals and healthy options, like cheesecake instead of chocolate cake, and making fruit cheaper."
Ellis, 12, Wales
"My school dinners are not very nice and should be better, my friend found a hair in her dinner. Healthy is one thing but horrible is another!"
Rebecca, 10, Glasgow, Scotland
"My school's food is really good. We have a selection of healthy food and drinks and unhealthy food and drinks."
Megan, 14, Glasgow, Scotland
"School meals shouldn't all be healthy because if they are then everyone will just go down to the shops and get something nice like chips!"
Zoey, 14, West Sussex, England
"We have never had unhealthy food at my school. Lots of people buy pasta, jacket potatoes or soup. We used to have crisps in the sandwich bar and muffins in the tuck shop but they have taken them away because "they were too unhealthy".
Sophia, 12, Cambridge, England
"We should eat whatever we want! We know junk food is bad for us but leave school dinners how they are! If they become TOO healthy, everyone will stop eating them."
Nahida, 11, London, England
"I think there should be a section serving healthy food and a section serving not so healthy food. That way you get what you want."
Charlotte, 14, Leicestershire, England
"I nearly always have a school dinner - but they can be OK or really gross!!"
Katy, 10, Cheshire, England
"The school meals at my school are already quite healthy as we have vegetables with nearly every meal!"
Danielle, 12, North Somerset, England
"I think that our school meals should be healthier and also more tasty, because our school meals are disgusting!"
Kirsten, 10, Aberdeen, Scotland
"We should be allowed to eat what we want!"
Matthew, 12, Northern Ireland
"I think that the government is right, we should have healthier school meals because at my school all we have are chips, burgers and pizza!!!"
Rachel, 11, Cardiff, Wales
"I think that if we had a choice at my school, everyone would eat pizza!"
Anna, 12, Moscow, Russia
"I think there should be a healthy option but there should be another option as well. Also, I think there should always be vegetarian meals provided."
Connie, 11, Scotland
"I think the meals in my school are healthy but they don't look or taste nice!"
Holly, 11, London, England
"I think it should be healthier but still appetising. At my school they sell fruit but it's all bruised."
Jenny, 11, Surrey, England
"It's not the fact that we are eating too much fatty food, it's that we're not doing enough exercise."
Jack, 10, Liverpool, England
"I think it's not the food itself that's unhealthy it's the amount you eat, and why does the government always decided for us, we should have a say!"
Lucas, 13, Surrey, England
"Well maybe a bit healthier because my school sometimes cooks stuff kids won't like."
Megan, 9, Cheshire, England
"I think school meals should be made healthier, I have packed lunch, as our school meals are quite unhealthy, there is pizza, burgers and chips nearly everyday. Everyone should be eating healthier so we can live longer and not be ill."
Jasmine, 13, UK
"I feel that school meals are a balancing act. Too healthy and children will want a packed lunch instead. Too unhealthy and parents will want children to have a healthier packed lunch."
Neil, 9, Newcastle, England
"I think that school meals should have a variety of food, not just the healthy things - everybody should have a choice. I don't think schools should choose for us."
Alex, 15, Lancaster, England
"Yes, I do think they should be better for you so that children can grow up healthier and have a nice long life."
Rhiann, 14, Peterborough, England
"I think that school dinners at my school are very healthy at the moment. "
Peter, 12, Sussex, England
"I think that school dinners should be healthier as all the school feeds us is pizza, chips and pudding. I get fed up of people saying they aren't eating because they think that they are fat, so if there was the option of salads they wouldn't starve themselves."
Skye, 14, Peterborough, England
"I think junk food is the best type of food you can get, so I think that the government is being silly."
Emma, 11, Cape Town, South Africa
"The problem is that the healthy food they bring out isn't appetising enough, so obviously we're put off."
Suzanne, 13, Hertfordshire, England
"I think everyone should be able to choose what they want to eat. We are not stupid, we understand that junk food is bad for us. However, if we want to eat pizza and crisps we should be able to!"
Kim, 14, London, England
"I think a balanced meal in school is best, not too much of sugar or fruit & veg."
Kathryn, 12, Outer Hebrides, Scotland
"I think the government should stop sending mixed messages to children, one minute we are too skinny and the next we're too fat!"
Harriet, 15, Norfolk, England