You are what you eat. And what You are eating here (by faith alone) is the covenant body of Jesus Christ. You are being knit together, growing up into Him, bone of His bones, flesh of His flesh. This is a foundational meal, the one that informs and sanctifies all the other eating and drinking that you do. This is your primary meal.
Because the church in America has drifted away from faithful eating and drinking here, we have simultaneously drifted into a multitude of drinking problems and eating disorders. If any aspect of your eating and drinking life is out of kilter, then do not seek to fix that problem by yourself. You need to learn to put it right here.
Drinking problems originate because the lordship of Christ over all drinking is not properly acknowledged here. Learn to drink here, which means surrendering everything here, and you will learn from Christ elsewhere. Obsessive eaters who are gluttons need to learn from the simplicity of Christ here. There is no wantonness at His table. Obsessive eaters who are anorexic need to learn from the bounty of Christ, because the fat is the Lord’s.
Those who believe in salvation and healing through eating and drinking whatever the latest idolatrous fad is, whether vitamins, bee pollen, vegetables alone, etc. need to look to the worship of the true God alone as the place where they may find the signs and seals of their salvation. Your cupboards at home, whatever they contain, can be saved—but they are not, and can never be, a savior.
So, then, learn from Christ here. This does not mean figuring this Supper out, as though it were a math problem. It means eating and drinking in faith, asking God to apply His nourishing wisdom to your life, your eating and drinking habits, however He sees fit. He is giving to us; we are not giving to Him.