IMO Practice Test — Mindful Eating: A Path to a Healthy Body
6 Questions • 15 min • Olympiad level
15:00
Question 1 of 6
Two foods are tested. Food X turns iodine blue-black; food Y turns violet in the protein test. Which is correct?
X has starch and Y has protein
X has protein and Y has fat
Both have only fat
Neither has any nutrient
Explanation: Blue-black with iodine means starch (X); violet in the protein test means protein (Y).
Question 2 of 6
A diet rich in rice, sugar and ghee but with no dal, milk, fruits or vegetables would most likely cause poor:
Energy supply
Growth and protection from disease
Warmth
Taste
Explanation: Such a diet lacks proteins (growth) and vitamins/minerals (protection).
Question 3 of 6
Why are fruits and vegetables especially important even though they give little energy?
They supply vitamins, minerals and roughage
They are the main body-builders
They give the most warmth
They contain only water
Explanation: Fruits and vegetables are the chief source of protective vitamins, minerals and roughage.
Question 4 of 6
A villager regularly eats green leafy vegetables and jaggery. Which deficiency disease are they LEAST likely to get?
Anaemia
Scurvy
Night blindness
Goitre
Explanation: Green leafy vegetables and jaggery are rich in iron, which prevents anaemia.
Question 5 of 6
Sunlight helps prevent rickets because it helps the body make:
Vitamin C
Vitamin D
Iron
Protein
Explanation: Sunlight helps the body make vitamin D, which is needed for strong bones.
Question 6 of 6
An athlete and an office worker eat the same balanced foods. The athlete should mainly increase the amount of:
Energy-giving foods
Iodised salt
Water only
Vitamin tablets
Explanation: More physical activity uses more energy, so the athlete needs more energy-giving food.