Adding mindful eating to an online DASH diet course changed how 37 office workers thought about food. Their plates and blood pressure did not move

The DASH diet, short for Dietary Approaches to Stop Hypertension, is one of the best-studied eating patterns for blood pressure: plenty of vegetables, fruit, whole grains, pulses and low-fat dairy, with less salt, saturated fat and sugar. Knowing the plan is rarely the hard part. Following it between meetings is. A pilot trial published on 28 October in JMIR Formative Research asked whether teaching mindful eating alongside DASH, entirely online and with no coaching, would help working adults stick to it.

The researchers recruited employees at a large university in the US state of Georgia, part of the region sometimes called the stroke belt. Thirty-seven people were randomised: 18 to a six-week web course on DASH alone and 19 to Mind Your Heart, the same course plus mindful eating lessons, guided practice and goal setting. Participants had a median age of 50 and a mean BMI of about 32; 34 of the 37 were women. Both courses were self-paced, with one module released each week and roughly 20 to 30 minutes of DASH material a week. Food was logged for three days before and after in a phone app, and blood pressure, body measures and fasting blood fats and glucose were checked in person.

The headline finding is about engagement. Participants worked through 85.9% of their assigned content on average, 34 of 37 returned for the final visit, and people answered 77.5% of the short mealtime text-message check-ins. The mindful eating group spent longer on the platform, almost six hours over six weeks against about four for the DASH-only group. When the two groups were compared, the mindful eating group improved more on two questionnaire scores: cognitive restraint, the habit of deliberately limiting what you eat, and controlled regulation, a measure of eating well for outside reasons such as guilt or other people's opinions.

What did not change matters as much. There was no difference between the groups in DASH diet scores, calories or nutrients, weight or waist measures, blood pressure, cholesterol, triglycerides or fasting glucose. The study was a feasibility pilot with no power calculation, so it was never expected to show such effects, and the authors call every comparison exploratory. The groups were not perfectly balanced at the start (more people with high blood pressure ended up in the mindful eating arm), there was no allocation concealment, the trial was registered only after it had finished, and the corresponding author has since sought intellectual-property protection for the programme. The fair reading is that a low-cost online course can hold busy people's attention for six weeks; whether mindful eating on top of it helps the heart still needs a proper, larger trial.