Rụng tóc nhiều bất thường, tóc thưa dần hoặc mọc chậm có thể do thiếu hụt dinh dưỡng như sắt, vitamin D, B12, B9, kẽm và protein. Việc bổ sung liều cao có thể phản tác dụng.
Vitamin D aids bone health, muscle function, immunity, and energy metabolism. Deficiencies in D, B12, and B1 can cause fatigue, muscle weakness, cognitive issues, and nerve problems. Recommended daily intake varies by age and health status, with sources including sunlight, specific foods, and supplements.
A US study found a vitamin B12 compound, nitrosylcobalamin (NO-Cbl), can cross the blood-brain barrier to inhibit glioblastoma by accumulating nitric oxide in tumor tissue. It also enhanced existing treatments in lab tests.
