Research Question:
Is there a link between vitamin B12, folate and homocysteine levels and the risk of fractures in the elderly?
Study Design:
This overview article contained observational studies until July 2012. The age of the participants in the studies ranged from 41 to 78 years.
Research Question:
Epidemiological studies have reported on the preventive effect of vitamin A intake on bladder cancer. However, the results are inconsistent. It was therefore carried out this review article.
Lowers a high intake of vitamin A or carotenoids the chances of getting bladder cancer?
Study Design:
Research Question:
Research Question:
Vitamin B6-a high blood value lowers the chances of getting colon cancer?
Research Question:
An increased plasma homocysteine levels is associated with getting cognitive impairment and dementia in later life but an increased plasma homocysteine levels can be lowered by daily swallowing of vitamin B6, B12 and folic acid.
Research Question:
Is there a link between vitamin B12, folate and homocysteine levels and the risk of fractures in the elderly?
Study Design:
This overview article contained observational studies until July 2012. The age of the participants in the studies ranged from 41 to 78 years.
Research Question:
Total vitamin C intake reduces and breast cancer-related mortality?
Study Design:
This overview article contained 10 studies (vitamin C supplements (n = 6) and vitamin C through feeding (n = 7)) with 17696 patients with breast cancer and kill, which have gone to 2791 1558 breast cancer death.
Research Question:
Eating vitamins lowers the chances of getting colon adenoma?
Study Design:
This overview article contained 13 observational studies with 3832 people with colon adenoma.
Research Question:
Swallowing of vitamin C lowers the chances of getting complex regional pain syndrome (CRPS) after surgery or injury?
Study Design:
This overview article contained 4 Rcts.
The dosage of vitamin C was not less than 500 mg a day for 45-50 days. There was no heterogeneity.
Research Question:
Swallowing of vitamin C lowers the chances of getting a cold?
Study Design:
This overview article contained 29 Rcts with 11306 participants.
The dosage of vitamin C was at least 200 mg per day.
Results and conclusions:
The researchers found that taking vitamin C in the ordinary population the chance of getting a cold non-significant with 3% [95% CI = 0.94-1.00] reduced. Non-significant is, there is no link to a 95% reliability.
Voedingsadvies El Mondo