What dietary substance must be avoided by patients taking Tetracycline?

Patients taking Tetracycline should avoid dairy products because calcium, which is abundant in dairy, can bind to Tetracycline in the gastrointestinal tract. This binding significantly reduces the absorption and effectiveness of the medication. When Tetracycline is taken alongside dairy, it may prevent adequate therapeutic levels of the antibiotic from entering the bloodstream, which can hinder the treatment of infections. Thus, it is crucial for patients to avoid consuming dairy products during the course of treatment with Tetracycline to ensure maximum efficacy of the medication.