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.

People with mild high blood pressure who ate within an 8-hour window saw their nighttime blood pressure drop more significantly compared to daytime levels after six weeks.

People with mild high blood pressure who ate within an 8-hour window while following the DASH diet lost about 4 kilograms over six weeks, while those who only followed the DASH diet didn't lose weight.

People with mild high blood pressure who ate within an 8-hour window while following the DASH diet saw their BMI drop by 1.3 points over six weeks, while those who only followed the DASH diet didn't see a change.

People with mild high blood pressure who ate within an 8-hour window excreted more salt in their urine compared to those who only followed the DASH diet.

If you have high blood pressure and eat a lot of salt, switching to the DASH diet can lower your blood pressure by up to 10.6 points—but if you’re already eating very little salt, the diet might not help as much. So, it works best when you’re still eating salty foods.