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9 Dec 2025
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Exploring Food Technology
diana ౨ৎ
@lovelii.diana
1 / 3
Diet, Activity and Health
Want to know the secret to feeling amazing and avoiding serious health problems? It all comes down to what you eat and how much you move! A balanced diet based on the Eatwell Guide gives your body exactly what it needs – not too much, not too little.
When people eat too much or move too little, obesity becomes a real problem. Think of it like a simple equation: if energy in (food) is greater than energy out (activity), you gain weight. Body Mass Index (BMI) helps doctors work out if someone's weight is healthy using the formula: weight ÷ (height in metres)².
Poor diet choices seriously increase your risk of cancer, heart disease, weak bones, and anaemia. The good news? You can slash your chances of heart problems by 80% just by eating better, moving more, and making smarter lifestyle choices. Key changes include eating more oily fish, cutting down on salt, and loading up on fruits and vegetables.
Remember: Different age groups need different amounts of activity – teens like you need at least 60 minutes of physical activity every day, mixing up the intensity to keep it interesting!
Energy, Nutrients and Digestion
Your body is basically a brilliant machine that needs fuel to keep running – and that fuel comes from energy in food and drinks. Everything from your heartbeat to your homework needs energy, and different people need different amounts depending on their age, size, and how active they are.
Macronutrients are the big three: carbohydrates, proteins, and fats. These provide energy and help build your body. Micronutrients (vitamins and minerals) are needed in tiny amounts but are absolutely crucial for staying healthy. Fat gives you the most energy per gram (9 calories), whilst carbs and protein give you about 4 calories each.
Digestion is your body's amazing way of breaking down food so you can actually use it. The process has four main stages: ingestion (eating), digestion (breaking down), absorption (taking in nutrients), and elimination (getting rid of waste). Your digestive system works like a conveyor belt, processing everything you eat from mouth to... well, you know!
Top tip: Protein contains amino acids – think of them as building blocks that your body can't make on its own, so you must get them from food!
Food Hygiene
Nobody wants to spend their weekend being sick from food poisoning – trust me, it's absolutely horrible! Food poisoning happens when harmful bacteria or toxins get into your food, usually through poor hygiene or incorrect storage.
Cross-contamination is your biggest enemy in the kitchen. This happens when bacteria jump from raw foods (especially meat and fish) onto cooked food or clean surfaces. Always store raw meat at the bottom of the fridge in sealed containers, and keep cooked foods above them.
Temperature control is absolutely crucial for food safety. Remember these key numbers: store food below 5°C, keep hot food above 63°C, and cook food to at least 75°C in the centre. Use-by dates are serious business – ignore them at your peril! Unlike best-before dates, which are just about quality, use-by dates are about safety.
Allergens can be life-threatening for some people. The law requires clear labelling of 14 major allergens including nuts, milk, eggs, and gluten. Always check labels carefully, especially if you're cooking for friends.
Essential hygiene routine: Wash hands thoroughly, tie back long hair, wear a clean apron, and check all use-by dates before you start cooking!
We thought you’d never ask...
What is the Knowunity AI companion?
Our AI Companion is a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.
Where can I download the Knowunity app?
You can download the app from Google Play Store and Apple App Store.
Is Knowunity really free of charge?
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
Most popular content: Food Technology
Most popular content in Other
Most popular content
Can't find what you're looking for? Explore other subjects.
Students love us — and so will you.
4.9/5
App Store
4.8/5
Google Play
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
Exploring Food Technology
diana ౨ৎ
@lovelii.diana
Ever wondered why your mum insists on washing her hands before cooking or why you need to eat your veggies? Understanding diet, nutrition, and food safety isn't just about passing your exams – it's about keeping yourself healthy and avoiding... Show more
Diet, Activity and Health
Want to know the secret to feeling amazing and avoiding serious health problems? It all comes down to what you eat and how much you move! A balanced diet based on the Eatwell Guide gives your body exactly what it needs – not too much, not too little.
When people eat too much or move too little, obesity becomes a real problem. Think of it like a simple equation: if energy in (food) is greater than energy out (activity), you gain weight. Body Mass Index (BMI) helps doctors work out if someone's weight is healthy using the formula: weight ÷ (height in metres)².
Poor diet choices seriously increase your risk of cancer, heart disease, weak bones, and anaemia. The good news? You can slash your chances of heart problems by 80% just by eating better, moving more, and making smarter lifestyle choices. Key changes include eating more oily fish, cutting down on salt, and loading up on fruits and vegetables.
Remember: Different age groups need different amounts of activity – teens like you need at least 60 minutes of physical activity every day, mixing up the intensity to keep it interesting!
Sign up to see the contentIt's free!
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Energy, Nutrients and Digestion
Your body is basically a brilliant machine that needs fuel to keep running – and that fuel comes from energy in food and drinks. Everything from your heartbeat to your homework needs energy, and different people need different amounts depending on their age, size, and how active they are.
Macronutrients are the big three: carbohydrates, proteins, and fats. These provide energy and help build your body. Micronutrients (vitamins and minerals) are needed in tiny amounts but are absolutely crucial for staying healthy. Fat gives you the most energy per gram (9 calories), whilst carbs and protein give you about 4 calories each.
Digestion is your body's amazing way of breaking down food so you can actually use it. The process has four main stages: ingestion (eating), digestion (breaking down), absorption (taking in nutrients), and elimination (getting rid of waste). Your digestive system works like a conveyor belt, processing everything you eat from mouth to... well, you know!
Top tip: Protein contains amino acids – think of them as building blocks that your body can't make on its own, so you must get them from food!
Sign up to see the contentIt's free!
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Food Hygiene
Nobody wants to spend their weekend being sick from food poisoning – trust me, it's absolutely horrible! Food poisoning happens when harmful bacteria or toxins get into your food, usually through poor hygiene or incorrect storage.
Cross-contamination is your biggest enemy in the kitchen. This happens when bacteria jump from raw foods (especially meat and fish) onto cooked food or clean surfaces. Always store raw meat at the bottom of the fridge in sealed containers, and keep cooked foods above them.
Temperature control is absolutely crucial for food safety. Remember these key numbers: store food below 5°C, keep hot food above 63°C, and cook food to at least 75°C in the centre. Use-by dates are serious business – ignore them at your peril! Unlike best-before dates, which are just about quality, use-by dates are about safety.
Allergens can be life-threatening for some people. The law requires clear labelling of 14 major allergens including nuts, milk, eggs, and gluten. Always check labels carefully, especially if you're cooking for friends.
Essential hygiene routine: Wash hands thoroughly, tie back long hair, wear a clean apron, and check all use-by dates before you start cooking!
We thought you’d never ask...
What is the Knowunity AI companion?
Our AI Companion is a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.
Where can I download the Knowunity app?
You can download the app from Google Play Store and Apple App Store.
Is Knowunity really free of charge?
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
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Most popular content: Food Technology
Most popular content in Other
Most popular content
Can't find what you're looking for? Explore other subjects.
Students love us — and so will you.
4.9/5
App Store
4.8/5
Google Play
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user