Do Multivitamins Increase or Decrease Cancer Risk: Should We Take Them

What is the role of multivitamins in our body?
Do multivitamins increase or decrease the risk of cancer?
Who should take multivitamins according to medical guidelines?
What are the significant findings from the Physicians' Health Study II and the SU.VI.MAX Study regarding multivitamin intake and health outcomes?
Can long-term multivitamin intake improve cognitive function?
Important highlights:

Multivitamins are crucial for those with specific deficiencies or dietary insufficiencies and certain health conditions or life stages.
Certain vitamins and minerals, such as folic acid for pregnant women and vitamin D for infants, are recommended by recognized health organizations like the U.S. Preventive Services Task Force and the American Academy of Pediatrics.
Specific combinations of antioxidants and minerals, like those in the AREDS formula, can reduce the risk of conditions like age-related macular degeneration.
The Physicians' Health Study II showed an 8% reduction in total cancer incidence among men who took a daily multivitamin.
The SU.VI.MAX Study indicated a significant reduction in the incidence of cancer in men using a daily multivitamin supplement.
Long-term multivitamin use, as per the Physicians' Health Study II, could potentially contribute to improved cognitive function.