DIET, HEALTHY

This study tested whether giving adults with type 2 diabetes and food insecurity a small weekly incentive ($10.50 per household member) to buy healthy foods could improve their blood sugar control. 597 participants were randomly assigned to receive either the food incentive plus …

This study looked at whether delivering healthy food to the homes of rural adults with type 2 diabetes and food insecurity could improve their blood sugar control and diet. Over 400 participants either received standard care alone or standard care plus free healthy food deliverie…

This study looked at whether a 12-week program of exercise, a protein-controlled diet, and education could improve health in people with early-stage kidney disease (stages G1 and G2). Fifteen participants completed the program. Researchers measured changes in cholesterol, muscle …

This completed study gave 580 Native American adults and children in Osage Nation weekly boxes of fresh fruits and vegetables along with healthy recipes and cooking classes. The goal was to see if this program could improve diet, lower blood pressure, and reduce health risks like…

This study tested a new weight loss program called Med-South, which adapts the Mediterranean diet for Southern tastes, against the popular WW (Weight Watchers) program. Over 360 adults with obesity participated for 2 years, with researchers tracking weight loss, blood markers, an…

This study tested whether using special placemats that promote healthy kids' meals, combined with a reward card that offers a free meal after six healthy purchases, could encourage children ages 4-8 to choose healthier options at quick-service restaurants. Over 550 families parti…

This pilot study tested whether adding health literacy lessons to an obesity prevention program helps teenagers eat healthier and be more active. 36 adolescents aged 13-16 took part. The program taught them how to find, understand, and use health information to make better choice…

This study tests whether limiting food and drinks (except water) to a 10-hour period each day for four weeks can improve eating behaviors, diet quality, and body composition in women aged 20-29. Participants will track their eating and complete surveys about emotional eating and …

This study looked at how the tiny organisms in your gut (the microbiome) affect how many calories your body absorbs from food. Researchers measured methane in breath as a clue to different gut bacteria types. Sixty healthy adults ate two special diets that had the same calories b…

This study tested a program to help Southeast Asian families (Hmong, Cambodian, Laotian, or Vietnamese) with children ages 6 to 11 eat healthier. The program included nutrition classes, one-on-one talks, text messages, and coupons for healthy food. The main goal was to see if the…

This study tested whether a smartphone app called FoodImage could help people improve their diet and reduce household food waste. 46 healthy adults used the app to track what they ate and threw away, while some received smart tips on replacing less healthy foods with fruits and v…

This study tested a 12-week health coaching program called Sip & Snack Better to help teens aged 12-16 reduce added sugar intake. Thirty teens and their parents participated, with some receiving coaching and others a tech-only comparison. The study also tested a new breath, blood…

This study tested new paper and electronic checklists that help people describe the foods in their home. The goal was to see if these tools are accurate and easy to use for English and Spanish speakers. 439 adults who do most of the grocery shopping for their home took part. The …

This study looked at how different diets affect the bladder in 13 healthy adults. Participants followed a special diet for 12 weeks, then switched to an opposite diet for another 12 weeks. Researchers checked urine and bladder cells after each diet to see if food can change bladd…

This pilot study compared two healthy eating plans for overweight or obese pregnant women in a low-resource clinic. Forty-one women were randomly assigned to either standard healthy diet advice or a Mediterranean diet program that included free meals, olive oil, and nuts. Researc…

This study checks on mothers and their children 12 years after a pregnancy lifestyle program. Researchers want to see if healthy eating and activity during pregnancy affect the child's body composition and long-term health. About 497 families from the original TOP study are invit…

This completed study from Harvard University aimed to find biological markers in urine, blood, and stool that change after eating specific foods. Researchers gave 115 healthy adults controlled meals and measured hundreds of compounds to better understand how the body processes fo…

This study looked at whether eating beef every day for 30 days could improve thinking and visual skills in healthy young women. 80 women aged 18-40 took part, with one group eating beef and the other eating a plant-based protein. Researchers measured their performance on a 3D tra…

This study looked at whether providing medically tailored meals to an entire household, rather than just one person, and delivering them with a dedicated driver instead of a commercial shipper, can improve diet quality and reduce loneliness. 103 participants were enrolled. The go…

This study tested whether warning labels on foods containing non-nutritive sweeteners (like artificial sweeteners) help Chilean parents identify those products and choose healthier options for their children. Over 3,900 parents were shown different label designs and asked to pick…

This study tested whether adding a warning label that says a product is ultraprocessed changes how Chilean parents view and intend to buy these foods. Over 3,600 parents were shown similar products with or without the extra label. Researchers measured purchase intentions and whet…

This study tested whether adding color-coded nutrition labels (green, amber, red) to food products in an online grocery store helps shoppers choose healthier items. 395 adults in Bahrain completed a one-time shopping trip in a simulated online store. The researchers compared the …