Dietary and Topical Magnesium Replacement or Supplementation in Patients With Lymphoma

This study investigates whether increasing magnesium levels — through diet or topical (skin) application — helps lymphoma patients who have low magnesium levels due to treatment. Low magnesium is a common side effect of some cancer therapies and may cause symptoms like muscle cramps, fatigue, and nerve problems. **You may be eligible if...** - You are 18 or older - You have or have had any type of lymphoma - If you previously received chemotherapy, you are at least 2 months past your last treatment with no new chemotherapy planned - You can eat solid food and liquids normally - You are in good general health **You may NOT be eligible if...** - You are currently on active myelosuppressive chemotherapy - You have significant difficulty eating or swallowing - You have a condition that prevents accurate dietary recall Talk to your doctor to see if this trial is right for you.