This is the 6912th most frequent German word.
fettquelle
Source of fat.
In this sentence, 'Fettquelle' specifies a healthy type of fat-providing food.
Nüsse sind eine gesunde Fettquelle.
Nuts are a healthy fat source.
This example uses 'Fettquellen' in the plural form to generalize the sources of fats in vegan diets.
Vegane Fettquellen können aus Pflanzenöl bestehen.
Vegan fat sources can consist of vegetable oil.
Here, 'Fettquelle' is used to refer to ingredients or foods that provide fats in a diet.