Passion fruit juice has no known severe side effects. However, because it is a fruit juice, it does have some possible side effects that should be taken into consideration when drinking any juice.

It must be kept in mind that passion fruit juice comes from a fruit that naturally contains sugar, so those with blood sugar problems and weight gain concerns should be aware that passion fruit juice side effects can include increased sugar and calorie intake levels. Also, passion fruit juice is high in iron, copper, magnesium and phosphorous. For those who are deficient in these minerals, this is a benefit. If a person has a high concentration of these minerals in their system already, then passion fruit juice would not be beneficial for them.