' 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.
If you eat cured meats, you've probably encountered sodium nitrate or sodium nitrite. Sodium nitrate is a salt that is often added to jerky, bacon and luncheon meats.Sodium nitrite, on the other hand, is a salt and antioxidant that is commonly used to cure ham and bacon. Both chemicals act as food preservatives and add a red or pink color to processed meats, among other uses.f you eat cured meats, you've probably encountered sodium nitrate or sodium nitrite. Sodium nitrate is a salt that is often added to jerky, bacon and luncheon meats.