Triumph HCG Diet Drops › Forums › HCG Diet Plan Questions › Is 5 hour energy on hcg diet allowed? This topic contains 1 reply, has 2 voices, and was last updated by Michelle Diaz 1 year, 4 months ago. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts October 10, 2017 at 6:08 am #15323 SamanthaParticipant Is 5 hour energy on hcg diet allowed? How safe is it? Thanks November 1, 2017 at 6:58 am #17585 Michelle DiazParticipant If it has 0 calories, you can take it. However, make it a point to check the ingredients. If it contains sucralose or any other sweetener such as aspartame, it can make you gain weight. This makes it a big no-no. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic.