Native peoples traditionally use Brazil nuts to treat stomach ache, inflammation, hypersensitivity, and hepatitis. Consequently, a scientist should be interested in promoting .

The use of the chemicals found in the nuts for use as potential drugs

Explanation:

It was discovered that the Native peoples traditionally use Brazil nuts to treat stomach ache, inflammation, hypersensitivity, and hepatitis. Consequently, a scientist would have to make his/her own findings and perform various tests on the Brazilian nuts after extraction of the active chemical in the nuts.

This would then aid the interest in the promotion of the chemicals found in the nuts for use as a potential drug.