Healthy food keeps our body and mind balanced. Adulterated or unhealthy food leads to many health issues.Healthy Eating is essential for proper growth, strong body and overall well-being. A healthy diet allows us to lead disease-free and happy life. Our nutrition must be balanced. A balanced food includes a variety of foods that provide essential nutrients in the right quantities. This includes carbohydrates, proteins, fats, vitamins, and minerals. Eating too less causes malnutrition and eating too high quantities of food causes obesity. It is advisable to consume fresh and wholesome food in moderate quantities.
Human nutrition is the science of how the body takes in and uses food to stay alive, grow, and stay healthy. It includes eating the right kind of food that supplies essential nutrients our body needs for energy, repair, and protection.Nutrients are substances found in our food, that are vital for the body to function properly. They are grouped into: Carbohydrates, Proteins, Fats, Vitamins, Minerals, Water and Dietary Fiber.
Start with small Portions and always chew food well . We must never eat in a hurry. We should be very conscious while. Use all sense organs such as notice the colours, smells, and textures of your food , this will give a sense of enjoyment While eating food, strictly avoid other activities like watching TV. Always sit and eat food instead of walking while eating. Be thankful to the each meal you eat. Balance your eating by regulating the daily intake. Mindful eating make better food choices and avoid unhealthy which can assist in proper weight Management. A better eating practice can increase the satisfaction and love about food. It helps build a positive and respectful attitude.
India is known for its diverse food culture, deeply influenced by climate, geography, religion, agriculture, and local traditions. Every region has unique food habits and culinary practices, making Indian cuisine rich and varied. Even the cooking practices have changed over time. In the past, people used traditional methods like cooking on a chulha (traditional stove). Now, many people use modern methods like cooking on a gas stove. Our dietary practices are influenced by education, technology , culture of people etc. Innovations in kitchen appliances and cooking technology has led to many changes. Similarly, good access to a variety of ingredients and cooking tools has also improved nutrition.
A balanced diet is one that supplies all the essential nutrients that our body needs. It should also have enough fibre rand water. Eating a balanced diet keeps us healthy and helps us grow properly. A balanced diet should include Carbohydrates for energy, Proteins to help growth and repair, lipids for providing protection of organs, Vitamins and Minerals for boosting immunity, dietary fibres for digestion and water for hydration
Indian cuisine has been one of the best in the world due to its unique spices and a variety of tastes. A variety of Indian foods, snacks and beverages are widely accepted by the world.
|
State |
Crops Grown |
Traditional Food(s) |
Traditional Beverage(s) |
|
Karnataka |
Ragi, Rice, Sugar cane |
Bisi Bele Bath, Ragi Mudde |
Filter Coffee, Majjige |
|
Punjab |
· Maize, wheat, chickpea, and pulses. |
Makki di Roti & Sarson da Saag, Chole Bhature |
Lassi (sweet/salty), Chaach (buttermilk) |
|
Rajasthan |
· Maize, wheat, and pulses. |
Dal Baati Churma, Gatte ki Sabzi |
Bajra Raabdi, Kair Sangri Water |
|
Maharashtra |
Rice, fruits, vegetables, sugarcane, and oilseeds, |
Puran Poli, Misal Pav, Vada Pav |
Sol Kadhi, Kokum Sharbat |
|
West Bengal |
Potatoes, mustard. wheat, maize, pulses, and various vegetables |
Shorshe Ilish (mustard hilsa), Luchi-Alur Dom |
Mishti Doi, Green Coconut Water |
|
Kerala |
Rice,coconut, pulses and vegetables, |
Appam with Stew, Sadya |
Toddy (Palm wine), Sambharam (spiced buttermilk) |
|
Andhra Pradesh/Telangana |
Rice (paddy), maize, pulses, groundnut, cotton, chillies, |
Pulihora, Gongura Pickle, Andhra Chicken Curry |
Neembu Pani, Buttermilk |
Nutrients are substances in food that our body needs to grow, repair, and stay healthy. The following table illustrates the major nutrients and their functions.
|
Nutrient Type |
Function in the Body |
Classification |
Examples |
|
Carbohydrates |
Provide energy and are essential for performing daily activities and bodily functions. |
Simple and complex carbohydrates. Simple carbs are glucose, fructose and galactose. Complex carbs are cellulose and starch |
· Rice, wheat, potatoes, sugar, sweet potato and fruits such as banana, pineapple, mango |
|
Proteins |
Build and repair body tissues. They act as structural component of muscles, skin, and bones. Proteins help children grow taller. |
Primary, secondary, tertiary, and quaternary |
· Plant Sources: Pulses, beans, peas, nuts · Animal Sources: Milk, paneer, eggs, fish, meat |
|
Fats |
Fats or lipids store energy and protect our internal organs. Fats also regulate our body temperature. Fats are essential BUT we must avoid eating too much of fats as they can lead to health issues like obesity and heart disease. |
Simple and compound lipids |
· Nuts and Seeds: Almonds, sunflower seeds · Dairy Products: Ghee, butter, curd, milk · Oils: Olive oil, sunflower oil. |
|
Vitamins |
Vitamins are body protecting foods that help in body functions and disease prevention. Vitamins commonly found in foods are vitamin A,D,E,K and B-complex |
Vitamin A,D,E,K,C and B-Complex |
Found in legumes, nuts, whole grains, seeds, and milk products. |
|
Minerals |
Our body parts are made up of many minerals . They strengthen bones, teeth, and help in body functions. |
Iron, sodium, Iodine, Potassium etc. |
Iron, calcium, iodine (in salt, milk, spinach) |
|
Water |
Helps in digestion, absorption, and temperature regulation |
Water, juicy fruits, soups |
|
|
Dietary Fibre |
Aids digestion and prevents constipation |
soluble and insoluble fiber |
Whole grains, vegetables, fruits |
Deficiency occurs when we don't eat enough nutrients. It is also known as malnutrition. Deficiencies can cause frequent sicknesses and sometimes they are serious. A
|
Disease Name |
Nutrient Deficient |
Major Symptoms |
Reason / Cause |
Sources to Prevent It |
|
Night Blindness |
Vitamin A |
Poor vision in dim light, dry eyes, rough skin |
Lack of vitamin A |
Carrots, spinach, papaya, milk, egg yolk |
|
Rickets |
Vitamin D |
Soft, weak bones, bow legs in children |
Lack of sunlight or vitamin D in diet |
Fish oil, egg yolk, fortified milk, sunlight |
|
Scurvy |
Vitamin C |
Bleeding gums, loose teeth, body pain, poor wound healing |
Deficiency of vitamin C |
Citrus fruits, amla, guava, lemon, tomatoes |
|
Beriberi |
Vitamin B1 (Thiamine) |
Weak muscles, fatigue, nerve problems, swelling |
Lack of vitamin B1 |
Whole grains, legumes, nuts, green vegetables |
|
Pellagra |
Vitamin B3 (Niacin) |
Skin inflammation, diarrhea, dementia, fatigue |
Poor intake of niacin |
Meat, peanuts, whole grains, dairy |
|
Goitre |
Iodine |
Swelling of neck (thyroid gland), fatigue, weight gain |
Iodine deficiency |
Iodised salt, seafood, eggs |
|
Anemia |
Iron |
Tiredness, pale skin, weakness, breathlessness |
Iron deficiency (less hemoglobin) |
Green leafy vegetables, jaggery, dates, liver |
|
Kwashiorkor |
Proteins |
Swollen belly, stunted growth, thin muscles, hair changes |
Severe protein deficiency in diet |
Pulses, milk, eggs, fish, meat |
|
Marasmus |
Proteins + Calories |
Severe weight loss, thin body, delayed growth |
Lack of energy and protein in diet |
Milk, cereals, vegetables, energy-rich foods |
|
Dental Cavities |
Fluoride, Calcium |
Tooth decay, cavities, pain in gums |
Deficiency of calcium or poor dental hygiene |
Milk, cheese, yogurt, fluoride-rich toothpaste |
|
Osteoporosis |
Calcium, Vitamin D |
Brittle bones, bone fractures, back pain |
Poor intake or absorption of calcium/vit D |
Dairy, leafy greens, sunlight |
|
Constipation |
Dietary Fibre |
Hard stools, irregular bowel movement |
Low fibre intake |
Whole grains, fruits, vegetables, water |
|
Dehydration |
Water |
Dry mouth, dizziness, low urine output |
Lack of water in body |
Drinking enough water, juicy fruits |
|
Component |
Test Name |
Material Required |
Procedure |
Positive Observation |
|
Starch |
Iodine Test |
Iodine solution, dropper |
Add a few drops of iodine solution to the food item. |
Blue-black colour appears if starch is present. |
|
Proteins |
Biuret Test |
Biuret reagent (copper sulfate + sodium hydroxide) |
Add a few drops of Biuret solution to the food sample. |
Violet or purple colour appears if protein is present. |
|
Fats |
Paper Spot Test |
White paper, food sample |
Rub the food on a piece of white paper. Dry it for a few minutes. |
Translucent (greasy) spot indicates fat. |
|
Fats |
Sudan III Test (advanced) |
Sudan III solution |
Mix food with Sudan III solution. |
Red-stained oil droplets if fat is present. |
|
Sugar (glucose) |
Benedict’s Test |
Benedict’s solution, hot water bath |
Mix food with Benedict’s solution and heat in a water bath. |
Green to brick-red colour appears depending on sugar level. |
|
Water |
Heating Test |
Dry test tube, food sample |
Heat the food. Observe the inner walls of the test tube. |
Water droplets condense inside the test tube. |
Junk foods are foods that are high in sweet(calories) but low in nutritional value. They often contain excess sugar, salt, unhealthy fats, and artificial additives. Common examples include chips, puffs, pizza, panipuri, sugary drinks, burgers, and candies. Regular consumption of junk food can lead to serious health issues such as obesity, diabetes, heart disease, and poor digestion. It also affects brain function, causing tiredness, and poor concentration. Eating too much of junk food leads to weakness in the immune system and reduce energy levels, especially in children. Therefore, it's important to limit junk food and choose fresh, balanced meals for a healthy life.
Millets are small-seeded grains that are highly nutritious and have been grown in India for thousands of years. They include varieties like ragi (finger millet), jowar (sorghum), bajra (pearl millet), foxtail millet, and little millet. Millets are rich in fibre, iron, calcium, and proteins, making them a healthy alternative to rice and wheat. They are gluten-free and help in managing lifestyle diseases like diabetes, obesity, and heart problems.
Nuts are nutrient-dense foods packed with healthy fats, proteins, vitamins, minerals, and antioxidants. Common nuts include almonds, cashews, walnuts, pistachios, peanuts, and hazelnuts. They help in boosting brain function, improving heart health, and supporting strong bones due to their rich content of omega-3 fatty acids, vitamin E, magnesium, and calcium. Nuts also provide energy and are often eaten as snacks or added to dishes like sweets, salads, and cereals.
Food management refers to the proper planning, production, storage, distribution, and consumption of food to ensure that everyone has access to safe and nutritious meals. It involves minimizing food waste, using resources efficiently, and maintaining hygiene during preparation and storage. Good food management helps in preventing shortages, reducing hunger, and promoting health. At home, it includes buying only what is needed, storing food properly, and using leftovers wisely. On a larger scale, it includes government policies, food supply chains, and distribution systems like ration shops and midday meal schemes. Effective food management ensures food security and supports a sustainable future.
Food miles refer to the distance food travels from the place where it is grown or produced to the place where it is consumed. The more the food miles, the more energy and fuel are used, increasing pollution and contributing to climate change. Choosing locally grown and seasonal foods helps to reduce the food miles, supports local farmers, and promotes sustainability. An understanding food mile encourages people to make eco-friendly food choices that are better for the planet.
Water is essential for all living organisms as it supports vital life processes. It helps regulate body temperature, transports nutrients and oxygen to cells, and removes waste products through urine and sweat. Water is a key component of blood and other bodily fluids, aiding digestion and circulation. It also keeps the skin healthy and lubricates joints. Without adequate water, the body cannot function properly, leading to dehydration and serious health problems. Water is often called the “elixir of life” because it sustains every cell and supports all forms of life on Earth.
1. Pick the odd one out and give reasons:
A. Jowar, Bajra, Ragi, Chana
b. Kidney beans, Green gram, Soya bean, Rice
Answer:
A. The odd one in this group is Chana, because Jowar, Bajra, and Ragi are all millets, while Chana (chickpeas) is a pulse
B. The odd one out is Rice as Kidney beans, green gram, and soya beans are pulses/lentils rich in protein while rice is rich in carbohydrate.
2.Discuss traditional versus modern culinary practices in India.
Answer: In the traditional cooking practice, a traditional wood fire stove was primarily used. Grinding ingredients was manually done with the help of a silbatta (stone grinder) and in olden days, fresh ingredients, vegetables and fruits were preferred as there was no refrigeration to store them. On the other hand, modern practices have emphasized on the usage of gas stoves and electric appliances such as grinders and mixers are commonly used today. Nowsadays, packaged and processed foods are preferred than the readily available items. Cooking has become fashion these days but in olden days, it was a duty.
Reasons for Change in cooking style :
Answer:
Answer: Tasty foods are not always healthy. For example, burgers, pizzas, and chips are enjoyable but are not nutritious. They usually contain refined flour, excess oil, and spices, which are harmful to health. On the other hand, nutritious foods like boiled vegetables, pulses, and leafy greens may not be as appetising, but they are packed with essential nutrients like proteins, vitamins, and minerals that support our health and well-being.
5. Medu does not eat vegetables but enjoys biscuits, noodles, and white bread. He often has stomach aches and constipation. What changes should he make in his diet to get rid of these problems? Explain your answer.Answer: Medu should add whole grains, pulses, fresh fruits, and vegetables to his meals to relieve constipation and stomach issues. These foods are rich in dietary fibre (roughage), which is missing in his current diet. It’s also important for Medu to cut back on biscuits, noodles, and white bread, as they are made from refined flour, which lacks fibre and contributes to digestive problems.
6.Reshma had trouble seeing things in dim light. The doctor tested her eyesight and prescribed a particular vitamin supplement. He also advised her to include a few food items in her diet.Answer:
(i) Reshma is experiencing night blindness, which makes it difficult for her to see in low light.
(ii) This condition is caused by a deficiency of Vitamin A.
(iii) To improve her condition, she should include foods like carrots, spinach, papaya, milk, and green leafy vegetables in her diet, all of which are rich in Vitamin A.
Which one would you prefer and why?
Answer: I would choose fresh fruit over both canned and fresh fruit juice because it offers a higher nutritional value, more dietary fibre, and natural flavour. Canned fruit juice often contains added sugars and preservatives, which can reduce its health benefits.
8.Gourav got a fracture in his leg. His doctor aligned the bones and put on a plaster. The doctor also gave him calcium tablets.On the second visit, the doctor gave him Vitamin D syrup along with calcium tablets.
Answer the following questions:
(i) Why did the doctor give calcium tablets to Gourav?
(ii) On the second visit, why did the doctor give Vitamin D syrup along with calcium tablets?
(iii) What question arises in your mind about the choices made by the doctor in giving the medicines?
Answer:
(i) Why did the doctor give calcium tablets to Gourav?
When a bone is fractured, the body needs extra calcium to rebuild and strengthen the bone cells at the fracture site.
(ii) On the second visit, why did the doctor give Vitamin D syrup along with calcium tablets?
Vitamin D is essential for the absorption of calcium from the gut into the bloodstream. Without enough Vitamin D, even if Gourav continues taking calcium tablets, much of that calcium may pass through his digestive tract unabsorbed. So Vitamin-D and calcium must be given together.
(iii) What question arises in your mind about the choices made by the doctor in giving the medicines?
A natural question is: “If Vitamin D is needed for calcium absorption, why wasn’t Vitamin D prescribed from the very beginning along with the calcium?”
Answer: The iodine test detects starch (a polysaccharide), turning blue-black in its presence whereas “sugar” like sucrose or glucose are simple carbohydrates that does not contain the long glucose chains that make up starch. In other words, sugar doesn’t change color with iodine because the iodine test is positive only for starch, not for simple sugars.
10.What do you think of Raman’s statement, “All starches are carbohydrates but not all carbohydrates are starches.” Describe the design of an activity to test your answer.Answer: Raman’s statement is accurate. Carbohydrates consist of sugars, starches, and fibres. Starches are long chains of glucose, while simple sugars and fibres are also carbohydrates but not starches.
Activity Design: Testing different types of Carbohydrates
|
Materials: |
Steps: |
Results: |
|
1. Iodine solution 2. Food samples: Potato, rice, sugar crystals, honey, fruits, raw vegetables |
|
|
Answer: The iodine turned blue-black on the teacher's saree because the saree likely contained starch, which reacts with iodine. The blue-black colour indicates the presence of starch in the saree fabric (possibly cotton). However, Mishti's socks did not change colour because they likely did not contain starch.
12.Why are millets considered a healthy choice of food? Can eating just millets suffice for the nutritional requirements of the body? Discuss.Answer: Millets are regarded as a healthy food choice due to their rich nutritional profile. They are excellent sources of vitamins, minerals (such as iron and calcium), and dietary fibre, making them ideal for maintaining good health. Millets are often referred to as nutri-cereals. While they are highly nutritious, consuming only millet may not meet all the nutritional needs of the body. A balanced diet requires a variety of food groups, and millets should be included as part of a diverse diet.
13.You are given a sample of a solution. How would you check the possibility of it being an iodine solution?Answer: To determine if the given sample is an iodine solution, you can perform the following test:
Starch Test (Iodine Test):