Final answer:
A high-fat diet is Not a metabolic disturbance leading to metabolic acidosis.
Step-by-step explanation:
Metabolic acidosis is a condition characterized by an excess of acid in the blood. While heavy exercise, high-fat diet, high-protein diet, severe diarrhea, and excessive vomiting can all result in metabolic acidosis, the actual question asks for the option that is NOT a metabolic disturbance leading to metabolic acidosis. Therefore, the correct answer is high-fat diet. A high-fat diet does not directly cause metabolic acidosis. However, it is important to note that excessive consumption of certain fatty acids can contribute to other health issues.