Adapting the Mediterranean Diet for Southern Kitchens to Improve Long-Term Health

The Southern Olive Branch

Researchers at the UNC Gillings School of Global Public Health have shown, according to their report, that a Mediterranean-style eating pattern — retuned for the kitchens of the American Southeast — can lift diet quality and help people lose weight over two years. The work, published in JAMA Network Open and led by Thomas Keyserling and Carmen Samuel-Hodge, feels like a quiet act of translation: taking the soul of a Cretan olive grove and planting it in a North Carolina produce aisle.

What the Study Actually Tested

The team ran the DELISH trial with 360 adults with a body mass index at or above 30, all recruited from primary care practices in central North Carolina. Half were placed on the Med-South program — a Mediterranean-style pattern adapted for southeastern food availability and taste — and half followed a WeightWatchers comparison plan, which focused mostly on cutting calories. Over 24 months, the Med-South group moved through three phases: first improving overall diet quality, then losing weight while keeping the eating style, then maintaining.

What I find most refreshing is how they measured "quality." Beyond food questionnaires, the researchers used the Veggie Meter — a small device that reads carotenoid levels in the skin, a quiet biomarker of how many fruits and vegetables a person actually eats. Among those who returned for follow-up, both groups lost roughly 4.5 kilograms, about 10 pounds. The Med-South edge wasn't bigger pants; it was a deeper shift in what filled those pants.

Why This Matters Beyond the Carolinas

The point of Med-South, as the researchers describe it, is that a Mediterranean pattern emphasizing fruits, vegetables, whole grains, legumes, nuts, olive oil, and fish can be reshaped for regional palates without losing its character. In a country where the Southeast shoulders a heavier burden of diabetes, cardiovascular disease, and stroke, that flexibility matters. A separate report also links the same dietary pattern to better sleep quality and fewer insomnia symptoms — a reminder that what we eat at dinner drifts into how we rest at night.

What to Try at Home

• Lean on fats the Mediterranean way: extra-virgin olive oil for cooking and dressings, a small handful of nuts or seeds daily, avocado when it's local.
• Build half your plate from plants: leafy greens in season, roasted sweet potatoes, okra and tomatoes, fruit for dessert instead of sugar.
• Choose whole grains over refined: stone-ground cornmeal, brown rice, oats, whole-wheat breads.
• Keep fish on the weekly menu, and treat red meat as a once-or-twice-a-week guest.
• Watch the ultraprocessed drift: the more packaged a food is, the more it belongs in the "sometimes" column.

The lesson I keep returning to is this: you don't need a Mediterranean coastline to eat Mediterranean-style. You need a pattern that respects where you live, a Veggie-Meter mindset — are the colors on your plate getting richer? — and the patience to let two years do their quiet work.