Due to the mentioned instability and degradation of vitamins in
fruit juices, we expected producers to add significantly higher
concentrations of vitamins to ensure the labeled value until the
expiration date. We were particularly interested in the concentration
of added FA as most recent studies have pointed out some
possible ambivalent health effects. While an adequate folate intake
is beneficial during pregnancy to prevent congenital malformations
such as neural tube defects (Scholl & Johnson, 2000), adverse