It depends on the case; there is no single guideline.
Effect by goal · level of evidence
Coronary heart disease (regression)
improvesModeratestudy (AA)
5-year randomized trial (48 patients with coronary heart disease): an intensive program (very low-fat diet, exercise, stress management, no smoking), WITHOUT drugs, achieved regression of coronary plaques, while the usual-care group worsened. Small sample but striking result.
Coronary artery disease (regression) — improves (Moderate, study). A 5-year randomized trial (48 patients with coronary artery disease): an intensive program (very low-fat diet, exercise, stress management, no smoking), WITHOUT drugs, achieved regression of coronary plaques, while the usual-care group worsened. Small sample but a striking result. 9863851
Information, not medical advice. Prescription drugs require a doctor.
Information, not medical advice. Scientific evidence reflects the quality of the studies.