Difficulty: Mixed
What does the term macronutrient describe?
A A food with many colors
B Needed in larger amounts
C A vitamin stored in fat
D A nutrient with no role
Answer: B. Needed in larger amounts Carbohydrate, protein, and fat are needed in relatively large amounts and supply energy.
Which three nutrients are commonly called energy-yielding macronutrients?
A Water, iron, and zinc
B Vitamin C, fibre, and salt
C Calcium, iodine, and folate
D Carbohydrate, protein, and fat
Answer: D. Carbohydrate, protein, and fat Carbohydrate, protein, and fat provide dietary energy.
How much energy does carbohydrate provide in standard estimates?
A About four kcal per gram
B About one kcal per gram
C About seven kcal per gram
D About nine kcal per gram
Answer: A. About four kcal per gram Standard estimates assign about four kilocalories to each gram of carbohydrate.
Which macronutrient is commonly estimated at four kcal per gram?
A Fat
B Water
C Protein
D Alcohol
Answer: C. Protein Protein is commonly estimated at about four kilocalories per gram.
What is the usual energy estimate for one gram of fat?
A About nine kcal
B About two kcal
C About four kcal
D About seven kcal
Answer: A. About nine kcal Fat provides about nine kilocalories per gram, making it energy dense.
Which carbohydrate is made from many linked glucose units?
A Water
B Cholesterol
C Starch
D Vitamin D
Answer: C. Starch Starch is a carbohydrate made of many linked sugar units.
Where does glucose fit among carbohydrate types?
A Dietary fat
B Amino acid
C Mineral
D Simple sugar
Answer: D. Simple sugar Glucose is a simple sugar and an important fuel used by cells.
What is dietary fibre mainly made of?
A Proteins stored in muscle
B Carbohydrates not fully digested
C Minerals dissolved in water
D Fats used for insulation
Answer: B. Carbohydrates not fully digested Many fibres resist digestion in the small intestine and affect digestion differently.
Which grain food usually retains its bran and germ?
A Refined grain
B Starch syrup
C Whole grain
D White sugar
Answer: C. Whole grain Whole grains retain the bran, germ, and endosperm.
What usually happens during grain refining?
A Bran and germ are removed
B Protein becomes a vitamin
C All starch disappears
D Fat turns into fibre
Answer: A. Bran and germ are removed Refining removes bran and germ, which reduces some fibre and micronutrients.
Which choice is a common source of plant protein?
A Butter
B Lentils
C Fruit juice
D Table sugar
Answer: B. Lentils Lentils and other pulses provide plant protein.
What are amino acids in relation to protein?
A Its stored vitamins
B Its digestive enzymes
C Its fatty acids
D Its building blocks
Answer: D. Its building blocks Proteins are built from amino acids linked in different sequences.
Why are some amino acids called essential?
A The body stores them forever
B They contain no nitrogen
C They are only in meat
D Food must supply them
Answer: D. Food must supply them Essential amino acids cannot be made in adequate amounts and must come from food.
Which statement about protein sources is accurate?
A Only meat contains protein
B Plants and animals provide protein
C Only dairy contains protein
D Plants contain no amino acids
Answer: B. Plants and animals provide protein Protein occurs in animal foods and plant foods such as pulses, nuts, and soy.
Do plant proteins need to be combined in one meal for most healthy adults?
A Yes, at every meal
B Only with added sugar
C Not every meal
D Only with dairy
Answer: C. Not every meal Eating varied plant protein sources across the day can provide essential amino acids.
How does dietary fat help absorb certain vitamins?
A Helps absorb fat-soluble vitamins
B It dissolves vitamin C
C It creates vitamin B12
D It blocks every vitamin
Answer: A. Helps absorb fat-soluble vitamins Dietary fat supports absorption of fat-soluble vitamins A, D, E, and K.
Which vitamins are fat-soluble?
A Vitamins A, D, E, K
B Vitamins B and C
C Vitamin C and folate
D All B vitamins
Answer: A. Vitamins A, D, E, K Vitamins A, D, E, and K are fat-soluble.
What are essential fatty acids?
A Fats made only in muscles
B Fats with no body role
C Sugars stored in blood
D Must come from food
Answer: D. Must come from food The body cannot make enough of some fatty acids, so food must supply them.
Which food group commonly supplies unsaturated fats?
A Candy and syrup
B Nuts and seeds
C White rice
D Soft drinks
Answer: B. Nuts and seeds Nuts and seeds are common sources of unsaturated fats.
Which option is a source of omega-3 fats?
A Refined sugar
B Plain starch
C Flaxseed
D Table salt
Answer: C. Flaxseed Flaxseed supplies plant omega-3 fatty acid ALA.
Which fat type should generally be limited in a healthy eating pattern?
A Unsaturated fat
B Essential fatty acids
C Industrial trans fat
D All dietary fat
Answer: C. Industrial trans fat Guidance recommends minimizing industrially produced trans fats.
What is a useful way to improve fat quality?
A Remove every fat source
B Swap saturated for unsaturated fat
C Add more trans fat
D Avoid all seeds
Answer: B. Swap saturated for unsaturated fat Replacing some saturated fats with unsaturated fats can improve the overall fat profile.
Which statement about carbohydrates is most accurate?
A Food sources differ in quality
B All carbohydrates are identical
C Carbohydrates have no energy
D Only sweets contain carbohydrates
Answer: A. Food sources differ in quality Carbohydrate sources differ in fibre, added sugar, and other nutrients.
Which carbohydrate-rich choice generally provides more fibre?
A Sweetened soda
B Hard candy
C Refined syrup
D Beans and whole grains
Answer: D. Beans and whole grains Beans and whole grains are useful fibre-containing carbohydrate sources.
Why should whole fruit not be treated exactly like sugary drinks?
A Fruit contains no sugar
B Whole fruit includes fibre
C Drinks contain no energy
D Fruit has no nutrients
Answer: B. Whole fruit includes fibre Whole fruit provides fibre and other nutrients, while sugary drinks may add energy with little fibre.
On a food label, what does added sugar refer to?
A Sugar added during processing
B All starch in grains
C Natural fibre in fruit
D Protein from milk
Answer: A. Sugar added during processing Added sugars are put into foods during processing or preparation.
What does total sugar include on many nutrition labels?
A Only added sugars
B Only starch
C All dietary fibre
D Natural and added sugars
Answer: D. Natural and added sugars Total sugars can include naturally present and added sugars; label rules vary by country.
What is one important role of protein in the body?
A Providing dietary fibre
B Making water unnecessary
C Building and repairing tissues
D Storing vitamin C only
Answer: C. Building and repairing tissues Protein supplies amino acids used to build and repair body tissues.
Which body substances can be made using protein building blocks?
A Dietary fibre only
B Water and minerals
C Essential fatty acids
D Enzymes and some hormones
Answer: D. Enzymes and some hormones Amino acids are used to make enzymes and many other functional molecules.
Why should protein needs not be treated as identical for everyone?
A All bodies are the same
B Protein is never needed
C Age and health change needs
D Needs depend on food color
Answer: C. Age and health change needs Protein requirements vary with age, growth, health, and other individual factors.
What is a sensible first step before using protein supplements?
A Review needs with a professional
B Replace every meal
C Take the largest dose
D Stop eating protein foods
Answer: A. Review needs with a professional Most needs can be planned from food; individual conditions and supplements merit qualified advice.
Can protein also be used for energy?
A No, it has no energy
B Yes, when needed
C Only after becoming fibre
D Only when mixed with sugar
Answer: B. Yes, when needed Protein can provide energy, although it also has structural and functional roles.
Why does fat contribute more energy per gram than carbohydrate?
A It contains more water
B Higher energy density
C It is a mineral
D It has no calories
Answer: B. Higher energy density Fat provides roughly nine kcal per gram compared with about four for carbohydrate.
Does a food become unhealthy solely because it contains fat?
A Yes, every fat is harmful
B Yes, fat has no role
C No, calories never matter
D No, type and amount matter
Answer: D. No, type and amount matter Fat type, food source, amount, and the overall diet all matter.
Which pair contains mainly unsaturated fat sources?
A Butter and ghee
B Candy and soda
C Olive oil and almonds
D White bread and rice
Answer: C. Olive oil and almonds Many plant oils and nuts contain mostly unsaturated fats.
What is a practical source of protein for a vegetarian meal?
A Tofu or chickpeas
B Fruit juice
C Cooking oil
D Refined sugar
Answer: A. Tofu or chickpeas Tofu and chickpeas are plant-based protein choices.
What happens to some carbohydrate after digestion?
A Stored as glycogen
B It becomes dietary vitamin D
C It is always excreted whole
D It turns into fibre
Answer: A. Stored as glycogen Some glucose is stored as glycogen in liver and muscle.
Where is glycogen commonly stored?
A Hair and nails
B Liver and skeletal muscle
C Lung air sacs
D Skin surface
Answer: B. Liver and skeletal muscle The liver and muscles store glycogen for later use.
What is an accurate point about the body’s protein stores?
A All protein stays unused
B Protein is stored as fibre
C Muscle is the only source
D There is no dedicated reserve
Answer: D. There is no dedicated reserve The body uses proteins in tissues and functions rather than keeping a dedicated protein reserve.
How can excess energy from any macronutrient affect body stores?
A It always becomes muscle
B It turns into vitamins
C May add to fat stores
D It disappears immediately
Answer: C. May add to fat stores When energy intake exceeds needs over time, surplus energy can contribute to body-fat gain.
Which option is a non-energy-yielding nutrient needed in large amounts?
A Protein
B Fat
C Water
D Carbohydrate
Answer: C. Water Water is essential but does not provide dietary kilocalories.
What distinguishes micronutrients from macronutrients?
A Needed in smaller amounts
B They provide most dietary energy
C Only found in supplements
D They contain no biological roles
Answer: A. Needed in smaller amounts Vitamins and minerals are needed in smaller amounts than macronutrients.
Which pairing is correct?
A Fat: one kcal per gram
B Carbs: four kcal per gram
C Protein: nine kcal per gram
D Water: four kcal per gram
Answer: B. Carbs: four kcal per gram Standard estimates are about four kcal per gram for carbohydrate and protein, and nine for fat.
Why can a meal contain all three macronutrients?
A They cancel each other’s energy
B Only one can be digested
C They are all vitamins
D They have different useful roles
Answer: D. They have different useful roles A varied meal can supply energy and different structural and functional nutrients.
Which approach best supports balanced macronutrient intake?
A Avoid every carbohydrate
B Eat only protein foods
C Use supplements as meals
D Choose varied whole foods
Answer: D. Choose varied whole foods A varied eating pattern can provide macronutrients along with fibre and micronutrients.
What can make a carbohydrate choice less nutrient-dense?
A Whole grains and pulses
B Vegetables and fruit
C High sugar, little fibre
D Beans with intact skins
Answer: C. High sugar, little fibre Highly refined foods with added sugars may provide fewer beneficial nutrients per calorie.
How should people interpret general macronutrient guidance?
A Treat it as a prescription
B Adapt it to individual needs
C Use one ratio for everyone
D Ignore medical conditions
Answer: B. Adapt it to individual needs Needs and appropriate patterns differ, particularly with age, activity, pregnancy, and health conditions.
Which statement about protein powders is safest?
A Not required for everyone
B They replace balanced meals
C More is always better
D They prevent all deficiencies
Answer: A. Not required for everyone Protein powders are supplements, not a universal requirement or a substitute for a balanced diet.
What best describes the relationship between macronutrients and food quality?
A Only grams matter
B Amounts and sources both matter
C Sources never matter
D All foods are nutritionally equal
Answer: B. Amounts and sources both matter Both the amount and the food source affect a diet’s nutritional quality.
Which statement summarizes macronutrients most accurately?
A Energy and body materials
B All stored as sugar
C Only found in meat
D They have identical functions
Answer: A. Energy and body materials Carbohydrate, protein, and fat provide energy and support different functions in the body.