Can the inner flesh of zucchini be eaten?
Generally speaking, the inner flesh (pulp) in the center of zucchini is edible, but it's not recommended to consume it in large amounts. Here's a detailed explanation:

The central pulp of zucchini mainly consists of water, small amounts of dietary fiber, and vitamins—all of which are nutrients that the human body can normally digest and absorb, with no toxicity. The pulp has a soft texture and a mildly sweet taste; after cooking, it blends well with the flesh, enhancing the overall flavor. Additionally, the dietary fiber promotes intestinal movement, aids digestion, reduces constipation, and helps replenish the body’s water needs. It is suitable for people of all ages and does not pose health risks when consumed.
Before eating, make sure to remove the seeds from the pulp to avoid affecting the taste. If the zucchini is overripe, the pulp may become fibrous and less palatable—consumption can be adjusted according to personal preference. It is advisable to cook the pulp with other ingredients to ensure balanced nutrition. When purchasing zucchini, choose fresh ones and avoid eating spoiled zucchini pulp, which could cause gastrointestinal discomfort. Individuals allergic to zucchini should avoid consuming it altogether to prevent adverse reactions such as rashes or diarrhea.