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Vitamin
Health & Medicine
Vitamin D deficiency: symptoms, causes and what helps
Willy Lewis, M.D.
-
December 5, 2025
Health & Medicine
From vitamin C to nasal spray: 11 cold myths put to the test
Willy Lewis, M.D.
-
October 20, 2025
Health & Medicine
Exercise as a vitamin booster: How exercise keeps your D levels stable in winter
Willy Lewis, M.D.
-
October 12, 2025
Health & Medicine
Cold myths in check: vitamin C, pull up nose and sport-what harms, what helps?
Willy Lewis, M.D.
-
October 7, 2025
Health & Medicine
Take vitamin D in summer: can this be necessary?
Willy Lewis, M.D.
-
August 4, 2025
Health & Medicine
Vitamin B-12 overdose: symptoms and side effects
Willy Lewis, M.D.
-
May 30, 2025
Health & Medicine
Take vitamin C correctly: This is how you get the most out of it
Willy Lewis, M.D.
-
January 20, 2025
Health & Medicine
Experts: Vitamin D overdose can “impair long-term health”
Willy Lewis, M.D.
-
January 8, 2025
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