Which vitamin is best known for preventing scurvy?
AnswerVitamin C
Scurvy is caused by a lack of vitamin C, found in citrus fruits, peppers and many other plants.
Health · Facts & stats
Diet facts & stats
7 fact-checked facts about diet and nutrition science, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
The word 'diet' comes from the Greek 'diaita'. What did 'diaita' mean?
AnswerWay of life
Greek 'diaita' meant a way of living, which later narrowed to mean the food a person usually eats.
Going deeper
About how many kilocalories does one gram of carbohydrate provide?
Answer4
Carbohydrates and proteins each provide about 4 kilocalories per gram.
Which eating pattern is traditionally built around olive oil, vegetables, legumes, fish and whole grains?
AnswerThe Mediterranean diet
The Mediterranean diet describes traditional eating habits of countries such as Greece and southern Italy.
What is dietary fiber?
AnswerPlant material the body can't fully digest
Fiber comes from plant foods and passes through the digestive system largely undigested.
Expert level
A food 'Calorie' on a nutrition label is equal to how many small calories?
Answer1,000
A food Calorie is a kilocalorie: the energy to warm 1 kg of water by about 1°C.
In 1747, which Scottish naval surgeon ran an early controlled trial showing citrus fruit cured scurvy?
AnswerJames Lind
James Lind gave sailors different treatments and found those given oranges and lemons recovered quickly.
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