Oral Intake of Mg in Controlled Asthmatic Patients

The goal of this clinical trial is to assess the efficacy of oral magnesium supplements in controlled asthmatic patients for proper effective asthma management to reduce frequency of asthma exacerbation \& to test the effect of oral magnesium supplementation on improvement of both clinical symptoms and lung functions in patients with bronchial asthma.. The main questions it aims to answer are: • Can oral supplementation of magnesium play a role in decrease the number of bronchial asthma exacerbations , number of ER visits , number of doctor visits and improve lung function ? Researchers will compare patients on usual treatment according to GINA guidelines 2024 group B and those taking oral magnesium together with the usual group A . Participants will: * Take oral magnesium treatment with usual asthma medications according to GINA guidelines (2024) every day for 1year * Visit the clinic once every 2 weeks for checkups and tests * Keep a diary of their day and night symptoms and the number of times they had activity limitation due to asthma and the number of use reliever.