In the National Nutrition Survey II (NVS II, 2008), the dietary behavior of the population was investigated for Germany and it was shown how this affects the average daily nutrient intake with macro- and micronutrients (vital substances).
The intake recommendations (D-A-CH reference values) of the German Nutrition Society (DGE) are used as the basis for assessing nutrient supply. A comparison of the nutrient intake determined in the NVS II with the recommendations of the DGE shows for which micronutrients (vital substances) there is a frequent undersupply in Germany.
The following can be said about the supply situation:
The main supplier of vitamin D in the diet is primarily fish. According to NVS II (2008), more than 40% of the daily vitamin D intake comes from fish and fish dishes. A balanced diet rich in fish is therefore particularly important with regard to a good vitamin D supply.
- The new intake recommendation for vitamin D in the amount of 20 µg is achieved through the normal diet of no one in the German population.
- On average, men take 2.9 µg of vitamin D per day and women 2.2 µg.
- The worst supplied men lack 19.2 µg of vitamin D. This corresponds to a daily shortfall of 96% of the recommended intake.
- The worst-supplied women lack 19.5 µg of vitamin D. This corresponds to a daily shortfall of 97.5% of the recommended intake.
- Pregnant and breastfeeding women have no additional need for vitamin D compared to their non-pregnant or non-breastfeeding peers. However, they are subject to the same deficiency situation. Accordingly, the worst supplied pregnant and breastfeeding women lack 19.5 µg of vitamin D per day.
Since the intake recommendations of the DGE are based on the needs of healthy and normal-weight people, an individual additional requirement (eg due todiet, stimulant consumption, long-term medication, etc.) may be above the intake recommendations of the DGE.
