In everyday life, for example on food packaging, the word ‘pure’ usually means that something is in its natural state without anything added to it, like sweeteners or preservatives. Natural fruit ...

Everything we can see and touch, and quite a lot that we can’t as well, is made of tiny particles called atoms. Some substances, like particles of this iron, contain only one kind of atom. Iron is an ...

UPDATE: The FBI says lab reports came back negative for biological threats. “As this is still an ongoing investigation, no other details can be released,” an FBI spokesman said. PREVIOUS STORY: (WFLA) ...

The Food and Drug Administration (FDA) is recommending banning a compound found in unregulated tablets, gummies and drink mixes sold online and at gas stations and convenience stores, the Trump ...

Prefer Newsweek on Google to see more of our trusted coverage when you search. Scientists have identified the most bitter-tasting substance ever discovered—a potent chemical compound found in a ...

Food scientists have discovered a mushroom chemical they say is the most bitter substance known thus far, a finding that sheds light on how the tongue helps us perceive taste. Researchers at the ...

DURING a study of plant keto-acids carried out by one of us (G. H. N. T.) under the direction of Prof. F. C. Steward at Cornell University, an unknown substance, hereafter designated compound I, was ...