Examining the Effects of Diet on Health in Prediabetes With an Online Program

Exclusion Criteria

• •1. Unable to provide informed consent.
• •2. Non English speaker. The intervention groups are conducted in English.
• •3. No current use of insulin, no immediate plans to start or increase diabetic mediations, and no use of diabetes medications besides metformin. Insulin and other diabetes medications other than metformin can alter the safety of the diets, so to ensure greater safety, we will exclude diabetics using insulin or medications besides metformin.
• •4. A substance abuse, mental health, or medical condition that, in the opinion of investigators, will make it difficult for the potential participant to participate in the intervention. Such conditions may include: cancer, liver failure, unstable coronary artery disease, severe emphysema, binge eating disorder or history of binge eating disorder, bulimia or strong history of bulimia.
• •5. Previous use or recent changes in medications that can interfere with the measures used in the study: current use of insulin; use of systemic (oral or IV) corticosteroids in the 1 month prior to enrollment or severe autoimmune disorders or other conditions (e.g. rheumatoid arthritis, lupus), that are likely to require these medications; and initiation of new class of psychiatric medications in past 2 months. Such medications can alter measures used in our research, such as assessments of markers of inflammation, or negatively influence the safety of the diets.
• •6. Pregnant or planning to get pregnant in the next 12 months, breastfeeding or less than 6 months post-partum. The intervention is not designed for the particular diet considerations during pregnancy and breast-feeding.