can vitamin c cause fatigue
2. Chronic Fatigue. Chronic fatigue is caused by Vitamin B12 deficiency and is a persistent feeling of tiredness and weakness in the body. 3. Weight Loss. Weight loss occurs when the body does not have adequate amounts of B12.
1. Vitamin B12. If you search for âhow to prevent fatigueâ in a text book or on the internet, Vitamin B12 will always come up! Vitamin B12 is a water soluble vitamin which has its effects predominantly on the actions and functions of the brain and nervous system. One study examined the benefit of vitamin B12 injections over 2,000 people. They did not find any positive effect until they increased the dosage to 2,500-5,000mg every 2-3 days.