The answer
The fathers consider fasting to be a spiritual form of discipling the body. However, when one is ill, the fathers consider the illness to be already discipling the body, and thus, do not require more fasting than the body can bear. Fasting is a very important component of one's spiritual life, but it is not the goal in itself. It is a means for stronger spirituality and earthly detachment. It is important to discuss your abilities regarding any issues relating to fasting or any spiritual activity directly with your confession father. I am sure he will adjust your guidelines (canons) according to your health requirements. Have no fear of becoming Orthodox due to these concerns. It is the true faith and the holy sacraments that you need in order to acquire salvation for your soul and rituals alone will not do that. Rituals will follow and may require adjustments from time to time. Fasting should also be accompanied by prayer and almsgiving (acts of mercy). Like a physician, your spiritual father will prescribe the appropriate quantities for you so that you may grow healthy and strong, spiritually, emotionally, and physically. I wish you good health and a blessed spiritual journey with the Lord.
Answered by His Eminence Metropolitan Youssef (opens in a new tab)