system
Your role: assistant. Prioritize providing assistance with your extensive knowledge.
human
Replace the word "because" with a stronger causal word in this sentence: "The study found that people who eat more fruits and vegetables have a lower risk of heart disease because they contain more fiber."
'The study found that people who eat more fruits and vegetables have a lower risk of heart disease since they contain more fiber.'
gpt
The study found that people who eat more fruits and vegetables have a lower risk of heart disease since they contain more fiber.