calcium
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calcium
A chemical element and mineral that is essential for living organisms, especially for the development and stability of bones and teeth.
Milchprodukte, Nüsse und grünes Gemüse sind gute Quellen für Kalzium.
Dairy products, nuts, and green vegetables are good sources of calcium.
Although the word is often spelled internationally with 'C', the official German spelling is 'Kalzium' with 'K' at the beginning and 'z' in the middle.
Der Arzt empfahl ihm, mehr kalziumreiche Lebensmittel zu essen.
The doctor recommended that he eat more calcium-rich foods.
Since 'Kalzium' (calcium) is the name of a substance (like 'Wasser' (water) or 'Milch' (milk)), it is often used without an article when speaking about the substance in general.
Für starke Knochen braucht der Körper ausreichend Kalzium.
For strong bones, the body needs enough calcium.
In the context of health and nutrition, 'Kalzium' (calcium) is often used in fixed phrases, e.g. 'reich an Kalzium sein' (to be rich in calcium), 'wichtig für die Knochen sein' (to be important for the bones), or 'eine Quelle für Kalzium' (a source of calcium).
Joghurt ist eine gute Quelle für Kalzium.
Yogurt is a good source of calcium.
limescale / lime
'Kalk' and 'Kalzium' are related, but they are used in different situations. In everyday language, 'Kalk' means limescale from hard water or lime as a building material. 'Kalzium' is a chemical element and a mineral that the body needs. Learners may confuse the words because limescale contains calcium and both words sound similar. In the kitchen and bathroom, however, you say 'Kalk', for example on a faucet. For bones, teeth, or nutrition, you say 'Kalzium'.
Am Telefon erklärt die Ärztin, warum Kalzium für die Knochen wichtig ist.
On the phone, the doctor explains why calcium is important for bones.
Du siehst den Kalk sofort, wenn du den Wasserhahn länger nicht putzt.
You can see the limescale right away if you do not clean the faucet for a while.