Zinc and Nicotinamide Riboside for Idiopathic Pulmonary Fibrosis

The goal of this clinical trial is to learn if a clinical trial for idiopathic pulmonary fibrosis (IPF) can recruit and retain participants from their home to study whether a combination of zinc and nicotinamide riboside can treat iIPF. The main questions are: Can the investigators recruit participants, and can participants complete study procedures without physically coming into specific clinical trial sites? Can people with IPF experience improvement in symptoms, quality of life, or functioning if they are take these supplements? The investigators will compare zinc and nicotinamide riboside to matched placebos (look-alike substances that contain no drug) to see if these supplements treat symptoms or lung function in people with IPF. Participants will: Take drug these supplements twice a day for 24 weeks. Complete pulmonary function testing and six minute walk tests with their own pulmonologists every 12 weeks. Complete a high resolution CT scan at the start and end of the study. Complete video study visits with the research team every 4 weeks. Complete surveys about their symptoms and the number of times they take the medication.