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Nutrients and Their Functions
Quick questions on Vitamins: functions, sources and deficiency - O-Level Food and Nutrition
2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is key vitamins to know?Show answer
Vitamin A keeps eyes healthy (especially night vision) and skin healthy. Sources: liver, carrots, dark green vegetables, milk. Deficiency causes poor night vision.
What is keeping vitamins in?Show answer
To conserve vitamins: prepare vegetables just before cooking, cook them quickly in a small amount of water (steam or stir-fry), serve them straight away, and avoid keeping food hot for a long time. Using the cooking water in a soup or sauce recovers some of the leached vitamins.
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