' An Act to preserve daylight and provide standard time for the United States ' was enacted on March 19, 1918. [See law] It both established standard time zones and set summer DST to begin on March 31, 1918. Daylight Saving Time was observed for seven months in 1918 and 1919.
Nitrate-rich foods include lettuce, parsley and spinach. âLeafy vegetables contain chemical nitrate that improves heart health,â the Mail Online reports. In a recent study, researchers looked at the effects of a nitrate-rich diet on rats.
To this end, experts suggest eating more nitrate-rich veggies, such as beets. The Bottom Line: Pick a hot dog that you feel good about eatingâonly 5 to 20 percent of the average Americanâs dietary nitrates/nitrites comes from cured meats.