2.3.6
Diet-Related Problems
Obesity
Obesity
Eating a bad diet can cause health problems. Obesity is when the body has excessive fat. Approximately a quarter of the UK's adult population suffers from obesity.
![Illustrative background for Body Mass Index](https://image-v2.cdn.app.senecalearning.com/2018-05/017ea8e1-1ff5-4886-98ae-99c11a7c871e/shutterstock_604196735,h_400,q_80,w_640.jpg)
![Illustrative background for Body Mass Index ?? "content](https://image-v2.cdn.app.senecalearning.com/2018-05/017ea8e1-1ff5-4886-98ae-99c11a7c871e/shutterstock_604196735,h_400,q_80,w_640.jpg)
Body Mass Index
Body Mass Index
- Body Mass Index (BMI) can indicate if a person is overweight, obese or extremely obese:
- Healthy weight: 18.5 - 25.
- Overweight: 25 - 30.
- Obese: 30 and 35.
- Extremely obese: 35+.
- However, BMI can be misleading because a person with a lot of muscle will weigh a lot (and therefore have a high BMI) even if they have very little body fat.
![Illustrative background for Causes of obesity](https://image-v2.cdn.app.senecalearning.com/2018-05/7511bedf-d5d3-48c6-bde9-d398edb1ece5/shutterstock_288575585,h_400,q_80,w_640.jpg)
![Illustrative background for Causes of obesity ?? "content](https://image-v2.cdn.app.senecalearning.com/2018-05/7511bedf-d5d3-48c6-bde9-d398edb1ece5/shutterstock_288575585,h_400,q_80,w_640.jpg)
Causes of obesity
Causes of obesity
- A diet containing lots of fatty and sugary foods.
- Eating disproportionately more calories than the number burnt off.
- Engaging in little to no physical activity.
![Illustrative background for Consequences of obesity](https://image-v2.cdn.app.senecalearning.com/2018-05/badaef85-fb56-430e-bce0-96629e3b222b/shutterstock_555956572,h_400,q_80,w_640.jpg)
![Illustrative background for Consequences of obesity ?? "content](https://image-v2.cdn.app.senecalearning.com/2018-05/badaef85-fb56-430e-bce0-96629e3b222b/shutterstock_555956572,h_400,q_80,w_640.jpg)
Consequences of obesity
Consequences of obesity
- High blood pressure.
- Cholesterol.
- Strokes.
- Coronary heart disease.
- Increases the chances of developing cancer, type 2 diabetes and other serious health conditions.
- Joint pains.
- Common symptoms include fatigue and difficulty breathing.
- Low self-esteem.
Coronary Heart Disease
Coronary Heart Disease
Coronary heart disease (CHD) arises when the coronary arteries fill with fatty deposits and narrow. The coronary arteries supply oxygenated blood to the heart.
![Illustrative background for Causes](https://image-v2.cdn.app.senecalearning.com/2018-05/6d0fc42e-a774-4001-9e64-51986b64638f/shutterstock_312824303,h_400,q_80,w_640.jpg)
![Illustrative background for Causes ?? "content](https://image-v2.cdn.app.senecalearning.com/2018-05/6d0fc42e-a774-4001-9e64-51986b64638f/shutterstock_312824303,h_400,q_80,w_640.jpg)
Causes
Causes
- High blood pressure.
- Strains organs and blood vessels.
- Consuming excessive saturated fats.
- High salt diet.
- Smoking.
- Leading a sedentary (inactive) lifestyle.
- Exercise helps to keep the cardiovascular system (the heart and blood vessels) healthy.
![Illustrative background for Consequences](https://image-v2.cdn.app.senecalearning.com/2018-05/929c476e-7e84-4b2f-96cf-d3c8dba3a8b3/shutterstock_174191435,h_400,q_80,w_640.jpg)
![Illustrative background for Consequences ?? "content](https://image-v2.cdn.app.senecalearning.com/2018-05/929c476e-7e84-4b2f-96cf-d3c8dba3a8b3/shutterstock_174191435,h_400,q_80,w_640.jpg)
Consequences
Consequences
- As it's difficult for blood to pass through the blood vessels smoothly, people may feel a squeezing pain in their chest as well as other parts of the body.
- If blood clots form, they may block the flow of blood to the heart. If the heart receives insufficient oxygen, the person could suffer from a heart attack.
Anaemia
Anaemia
An iron deficiency can cause anaemia. We need iron to form red blood cells. Red blood cells transport oxygenated blood from the lungs to the rest of the body. People suffering from anaemia have fewer red blood cells than they need. Vitamin C can help with the absorption of iron.
![Illustrative background for Causes](https://image-v2.cdn.app.senecalearning.com/2018-05/cfed30f9-fffe-4b46-aad5-3d105e547160/shutterstock_657850843,h_400,q_80,w_640.jpg)
![Illustrative background for Causes ?? "content](https://image-v2.cdn.app.senecalearning.com/2018-05/cfed30f9-fffe-4b46-aad5-3d105e547160/shutterstock_657850843,h_400,q_80,w_640.jpg)
Causes
Causes
- Consuming too little iron (i.e. not eating enough red meat or dark green leafy vegetables).
- Women not replacing iron lost in blood during their periods.
- Pregnant women losing too much iron to the developing foetus.
![Illustrative background for Consequences](https://image-v2.cdn.app.senecalearning.com/2018-05/41eba4ba-84a1-4bd9-83de-abaf09b8b487/shutterstock_1017688222,h_400,q_80,w_640.jpg)
![Illustrative background for Consequences ?? "content](https://image-v2.cdn.app.senecalearning.com/2018-05/41eba4ba-84a1-4bd9-83de-abaf09b8b487/shutterstock_1017688222,h_400,q_80,w_640.jpg)
Consequences
Consequences
- Symptoms can include:
- Fatigue.
- Paleness.
- Headaches.
- Heart palpitations.
- Strange fingernails - often spoon-shaped.
1Food Preparation Skills
1.1Food Preparation Skills
1.1.1General Practical Skills
1.1.2Knife Skills
1.1.3Preparing Fruit, Vegetables & Using Equipment
1.1.4Cooking Methods: Prepare, Shape & Combine
1.1.5Sauce Making, Tenderising & Marinating
1.1.6Dough & Pastry
1.1.7Shaping & Finishing Dough
1.1.8Raising Agents & Mixtures
1.1.9End of Topic Test - Food Preparation Skills 1
2Food, Nutrition & Health
2.2Micronutrients
3Food Science
3.1Cooking of Food & Heat Transfer
3.2Functional & Chemical Properties of Food
4Food Safety
4.1Food Spoilage & Contamination
5Food Choice
5.1Factors Affecting Food Choice
5.2British & International Cuisines
6Food Provenance
6.1Environmental Impact & Sustainability of Food
6.1.1Food Sources - Intensive & Organic Farming
6.1.2Food Sources - Genetically Modified Crops
6.1.3Food Sources - Reared Food
6.1.4Food Sources - Caught Food
6.1.5Food & The Environment
6.1.6Food & The Environment 2
6.1.7Sustainability of Food
6.1.8Sustainability of Food 2
6.1.9End of Topic Test - Environmental Impacts
Jump to other topics
1Food Preparation Skills
1.1Food Preparation Skills
1.1.1General Practical Skills
1.1.2Knife Skills
1.1.3Preparing Fruit, Vegetables & Using Equipment
1.1.4Cooking Methods: Prepare, Shape & Combine
1.1.5Sauce Making, Tenderising & Marinating
1.1.6Dough & Pastry
1.1.7Shaping & Finishing Dough
1.1.8Raising Agents & Mixtures
1.1.9End of Topic Test - Food Preparation Skills 1
2Food, Nutrition & Health
2.2Micronutrients
3Food Science
3.1Cooking of Food & Heat Transfer
3.2Functional & Chemical Properties of Food
4Food Safety
4.1Food Spoilage & Contamination
5Food Choice
5.1Factors Affecting Food Choice
5.2British & International Cuisines
6Food Provenance
6.1Environmental Impact & Sustainability of Food
6.1.1Food Sources - Intensive & Organic Farming
6.1.2Food Sources - Genetically Modified Crops
6.1.3Food Sources - Reared Food
6.1.4Food Sources - Caught Food
6.1.5Food & The Environment
6.1.6Food & The Environment 2
6.1.7Sustainability of Food
6.1.8Sustainability of Food 2
6.1.9End of Topic Test - Environmental Impacts
![Go student ad image](/en-GB/revision-notes/_next/image?url=%2Fen-GB%2Frevision-notes%2Fimages%2Fgo-student-uk-ad.jpg&w=640&q=100)
Unlock your full potential with GoStudent tutoring
Affordable 1:1 tutoring from the comfort of your home
Tutors are matched to your specific learning needs
30+ school subjects covered