Final answer:
Advise Mr. Chan that there is no evidence of healthful effects of hot pepper sauce.
Step-by-step explanation:
The most appropriate response is to advise Mr. Chan that there is no evidence of healthful effects of hot pepper sauce. While hot pepper sauce may have some potential health benefits, such as improving digestion and boosting metabolism, there is no scientific evidence to support its use in treating hypertension or cleaning the blood. It is important to rely on evidence-based treatments for hypertension, such as medication and lifestyle changes.