Passage Summary: Growing vegetables involves a trade-off: if you use fertilizer to fix tired soil, you end up needing more bug spray, which makes the food less healthy for people.

Reasoning: The passage establishes a chain of conditions: lack of crop rotation leads to nutrient depletion, which requires fertilizer for growth; fertilizer use increases pest vulnerability and pesticide requirements; and higher pesticide levels increase human health risks.

Analysis: Since this is a 'Must be True' question, we must treat the provided facts as absolute and look for a logical deduction. We are specifically asked about vegetables grown in soil that never had fertilizer. Following the logic chain in reverse, if no fertilizer was used, these vegetables would be less vulnerable to pests than those grown in fertilized soil. Consequently, they would require fewer pesticides and pose fewer health risks to humans. Look for an answer that reflects one of these downstream effects of avoiding fertilizer.