Does injecting hormone needles into the bloodstream after Iftar during fasting affect the fast?

Practicing bodybuilding is permissible, provided it adheres to Islamic guidelines, especially regarding the covering of 'awrah (intimate parts) and avoiding harmful substances. As for consuming food, drink, supplements, and hormones at night before fasting, there is no harm in it. It is permissible to delay the pre-dawn meal (suhoor (definition)) until the last part of the night, as it contains both religious and physical blessings. However, the matter of the hormones' potential harm remains. If their harmfulness is proven, then their consumption is impermissible, based on the hadith (definition): "There should be no harm nor reciprocating harm."