Omnivores have more menu options, but vegetarians have lower blood pressure. That, at least, is the opinion of researchers at the Physicans Committee for Responsible Medicine in Washington, which, OK, does happen to advocate for plant-based diets. The scientists looked at the blood pressure dietary history of more than 21,000 people who took part in seven clinical trials and 32 observational studies. The L.A. Times reports on what they found: a systolic difference of 4.8 mm of mercury lower for vegetarians than for omnivores in the clinical, or controlled, trials, and 6.9 mm in the observational studies — in which people chose their diets. For the the diastolic measure, the difference was 2.2 mm and 4.7 mm, respectively. The Times reports that those differences are similar to those seen with when people change to a low-salt diet or lose 10 pounds.