DIET, HEALTHY

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 gave Native American adults in Osage Nation a weekly box of fresh fruits and vegetables along with healthy recipes and cooking tips. The goal was to see if this program could improve diet, lower blood pressure, and reduce weight. About 580 people took part, and researc…

This study looked at whether a 12-week program of exercise, a protein-controlled diet, and educational sessions could help people with early-stage chronic kidney disease (CKD). Fifteen participants were guided to improve their cholesterol, muscle strength, body composition, and q…

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 2 years, 360 adults with obesity (BMI 30 or higher) were randomly assigned to one of the programs. The mai…

This study tested whether giving adults with type 2 diabetes who can't afford healthy food a special prescription for free groceries could help lower their blood sugar. About 600 people took part, and researchers compared those who got the food incentive plus standard advice to t…

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 follows up on mothers and their children 12 years after a pregnancy lifestyle program. Researchers want to see if healthy eating and activity during pregnancy can reduce obesity risk in both mother and child. About 497 families are invited for body scans, blood tests, …

This study looked at whether simple tools like special placemats and a reward card could encourage children aged 4-8 to choose healthier kids' meals at fast-food restaurants. Over 500 families took part across six restaurant locations. The goal was to see if these small changes c…

This study looked at how eating different foods affects the bladder. Thirteen healthy adults followed two special diets, each for 12 weeks, and gave urine samples to check for changes in bladder cells and other markers. The goal was to learn how diet might influence bladder healt…

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 tested whether warning labels on non-nutritive sweeteners (like those in diet drinks) help parents in Chile identify which products contain them and choose healthier options for their children. About 3,900 parents viewed different label designs on drinks and selected w…

This study tested whether adding color-coded nutrition labels (like traffic lights) to food products in an online grocery store helps shoppers choose healthier items. About 395 adults in Bahrain did a one-time virtual shopping trip, with some seeing the labels and others not. Res…

This study tested a 12-week program called Sip & Snack Better to see if it helps teens ages 12-16 cut down on added sugar. Thirty teens from Philadelphia took part, with some getting health coaching and others only using a phone app. The study also checked if a breath, blood, or …

This study looked at the best way to give medically tailored meals to families. Researchers wanted to know if it's better to feed the whole household or just one person, and whether a dedicated driver or a commercial shipper is more effective. 103 people took part, and the study …

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 looked at whether adding a special warning label to ultraprocessed foods (like sugary snacks and packaged meals) changes how parents in Chile shop. Over 3,600 parents were shown different products and asked if they would buy them and if they could spot the ultraprocess…

This study tested whether a Mediterranean diet program works better than standard healthy eating advice for overweight pregnant women. 41 women were randomly assigned to either the Mediterranean diet or routine diet counseling, and received free food and check-ins. The goal was t…

This study looked at whether eating beef every day for 30 days could improve thinking and visual skills in healthy young women. 80 women took part, with some eating beef and others eating a plant-based protein. The results may help us understand how diet affects brain performance…

This study tested a program to help teenagers eat healthier and be more active by improving their health literacy—their ability to find, understand, and use health information. 36 teens aged 13-16 took part. The goal was to see if adding a health literacy module to an existing ob…

This study tested whether giving people free fruits and vegetables along with tips to reduce food waste could improve their diet and cut down on what gets thrown away. 46 healthy adults used a special smartphone app to track their food. The goal was to see if this approach helps …

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…