Mediterranean Versus Vegetarian Diet For Cardiovascular Disease Prevention (the CARDIVEG Study) Study Protocol For A Randomized Controlled Trial

The CARDIVEG study is groundbreaking research that directly compares two of the most heart-healthy eating patterns: the Mediterranean diet and a vegetarian diet. While both diets have strong evidence supporting their cardiovascular benefits, no previous studies have put them head-to-head to see which might be superior for heart disease prevention.

The study involves 100 overweight adults who have at least one additional risk factor like high cholesterol, elevated blood sugar, or abdominal obesity, but aren't yet on medications. Participants will follow both diets for three months each in a crossover design, meaning everyone gets to try both approaches. Both diets are calorie-controlled (1400-1800 calories daily depending on individual needs) to promote weight loss, and researchers will track changes in weight, body composition, and various blood markers related to heart health.

This research is particularly valuable because it addresses a common question many health-conscious individuals face: "Should I go Mediterranean or vegetarian for optimal heart health?" Both dietary patterns emphasize whole foods and have been associated with reduced cardiovascular risk, but their direct comparison could provide clearer guidance for prevention strategies.

For patients interested in metabolic health and longevity, this study represents the kind of evidence-based approach that should inform dietary choices. Rather than relying on popular trends, having concrete data comparing proven dietary patterns can help individuals and their healthcare providers make more informed decisions about long-term nutrition strategies for cardiovascular protection and overall metabolic wellness.