For people with mild high blood pressure, eating all meals within an 8-hour window while following the DASH diet lowers blood pressure more than just the DASH diet alone over six weeks.
Scientific Claim
In adults with stage 1 primary hypertension, an 8-hour time-restricted eating regimen combined with the DASH diet for 6 weeks caused a greater reduction in systolic blood pressure (8.46 mmHg) and diastolic blood pressure (9.46 mmHg) compared to the DASH diet alone (5.60 mmHg systolic, 5.35 mmHg diastolic).
Original Statement
“The reduction of systolic blood pressure and diastolic blood pressure were 5.595 ± 4.072 and 5.351 ± 5.643 mm Hg in the DASH group and 8.459 ± 4.260 and 9.459 ± 4.375 mm Hg in the DASH + TRE group.”
Evidence Quality Assessment
Claim Status
appropriately stated
Study Design Support
Design supports claim
Appropriate Language Strength
definitive
Can make definitive causal claims
Assessment Explanation
The RCT design with randomization supports causal claims. Although blinding was not used, the study meets RCT criteria for establishing causation with moderate confidence.
Evidence from Studies
Supporting (1)
Effects of DASH diet with or without time-restricted eating in the management of stage 1 primary hypertension: a randomized controlled trial