Inclusion Criteria:
* Persons with early RA - defined as duration of diagnosis equal to or less than 6 months, and not currently taking biologic DMARD therapy. Participants may be on one or a combination of the following conventional synthetic DMARDs: hydroxychloroquine, methotrexate, sulfasalazine, leflunomide, azathioprine
* Seropositive (positive rheumatoid factor or anti-citrullinated protein antibody) or erosions typical of RA on radiographs
* History of fulfilling 2010 ACR/EULAR Classification Criteria for RA
* Active RA, not in clinical disease remission (Clinical Disease Activity Index for RA (CDAI) \> 2.8)
* Stable doses (for ≥ 1 month) of all RA and cardiovascular risk-related medications (including statins, metformin, SGLT2 inhibitors, GLP1RA) except for glucocorticoids
Exclusion Criteria:
* Pregnant or intending to become pregnant during the intervention period
* Current treatment with exogenous insulin
* Other inflammatory arthropathy or myopathy, Paget's disease, pigmented villonodular synovitis, joint infection, ochronosis, neuropathic arthropathy, osteochondromatosis, acromegaly, hemochromatosis, or Wilson's disease
* Current malignancy other than minimally invasive carcinomas routinely treated topically or with minor surgical treatment
* Absolute contraindications to exercise testing: ongoing unstable angina; uncontrolled cardiac arrhythmia with hemodynamic compromise; active endocarditis; symptomatic severe aortic stenosis; decompensated heart failure; acute pulmonary embolism, pulmonary infarction, or deep vein thrombosis; acute myocarditis or pericarditis; acute aortic dissection; physical disability that precludes safe and adequate testing
* Relative contraindications to exercise testing: known obstructive left main coronary artery stenosis; moderate to severe aortic stenosis with uncertain relation to symptoms; tachyarrhythmias with uncontrolled ventricular rates; acquired advanced or complete heart block; hypertrophic obstructive cardiomyopathy with severe resting gradient; recent stroke or transient ischemic attack; mental impairment with limited ability to cooperate; uncorrected medical conditions, such as hypertension (see below), significant anemia, important electrolyte imbalance, and hyperthyroidism
* Acute myocardial infarction (MI) within six months
* Resting hypertension with systolic or diastolic blood pressures ≥180/110 mm Hg
* Lack of internet access
* Planned, intentional weight loss during study
