CastorTroy
Member
In the study, published in the journal BioMed Research International, researchers looked at a range of different circulating metabolites (products of reactions in your metabolism) and antioxidants (molecules that fight potentially harmful free radicals), comparing the presence of these to information about participants' lifespans.
They did find that the higher the concentration of vitamin A over a long period of time, the more likely people were to live longer. Plus, the link was causal, meaning that, rather than people with more vitamin A just happening to live longer for some other reason, the vitamin actually had an effect on their longevity.
Association between Circulating Antioxidants and Longevity: Insight from Mendelian Randomization Study
"In conclusion, our study supports the hypothesis that higher circulating retinol concentration is causally associated with increased life expectancy."
They did find that the higher the concentration of vitamin A over a long period of time, the more likely people were to live longer. Plus, the link was causal, meaning that, rather than people with more vitamin A just happening to live longer for some other reason, the vitamin actually had an effect on their longevity.
Association between Circulating Antioxidants and Longevity: Insight from Mendelian Randomization Study
"In conclusion, our study supports the hypothesis that higher circulating retinol concentration is causally associated with increased life expectancy."