Supps not to take with grapefruit juice?

  1. Supps not to take with grapefruit juice?

    Hello friends,

    I love grapefruit juice (99% concentrate) and I also love taking supplements.

    As most of you here know, many supps are no joke (although some are nothing but a joke).

    As I understand it, grapefruit juice can greatly increase the effect of many drugs through its inhibiting effect on "CYP 3A4".

    Are there any supplements also metabolised by this enzyme? If so, which ones would they be?

    I know dianabol, not a "supplement", is one such substance where absorption is enhanced with grapefruit juice.

  2. Grapefruit will enhance the absorption of most oral hormones.

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