Vitamin D3 deficiency. What really helps?

Vitamin D3 deficiency– what helps?

Over 60% of Germans and Austrians suffer from vitamin D3 deficiency. Tiredness, hair loss, concentration problems, sleep disorders, nervousness and headaches are just some of the symptoms associated with a deficiency. In our article we go into what vitamin D3 actually is, what it is good for and how you can increase your vitamin D3 level.