Dash Diet compared to Blood Sugar diet.

Messages
1
Type of diabetes
Don't have diabetes
Treatment type
I do not have diabetes
Trying to manage my BP without increasing medication as well as avoiding falling over the threshold into being classed as pre-diabetic. Have been following principles of the Blood Sugar Diet for several years now. Saw the reference to the Dash Diet on the National Aging website and looked that up. One specifically recommends low or nil fat dairy products - the Dash Diet - the other, The Blood Sugar Diet, recommends not choosing low fat options citing the additives used to compensate for the lack of fat. I have studied the science behind the Blood Sugar Diet and it appears to me convincing. Research into the Dash Diet appears much smaller scale. Would welcome more info, views and experience on this apparent conflict in guidance please.