Final answer:
Acarbose impacts gastrointestinal functions by attenuating sucrose digestion, leading to gastrointestinal upset.
Explanation:
Acarbose, an a-glucosidase inhibitor, affects gastrointestinal functions because it attenuates sucrose digestion rather than directly inhibiting fructose transport. As a result, the incomplete digestion of sugars due to acarbose intake can lead to gastrointestinal upset as the most common side effect.
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