The 1968 election is a turning point in US political history because it saw the end of the New Deal coalition. The New Deal coalition was the alignment of interest groups and voting blocs in the United States that supported the New Deal and voted for Democratic presidential candidates from 1932 to 1960s.
Both Native Americans and European colonist had negative impacts which would be the new diseases and sicknesses, which their bodies weren't immune to or ever known to have. Both They also benefited positively in a sense that both obtained great technological transfer along with new types of plants, and animals.
Toxic Substances: The Toxic Substances and Control Act regulates the manufacture and sale of toxic substances in the United States to ensure that safe products are made and sold and to keep dangerous poisons out of the hand of people.
Food: There are a variety of food based regulation programs in the United States that work to ensure that people don't get sick from eating the food that they eat. This can include programs to ensure the safe transportation and storage of seafood to the cleanest and most hygienic slaughter of beef cattle.