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. 2025 Feb 17;62:e24107. doi: 10.1590/S0004-2803.24612024-107

TABLE 5. Key points of SIBO clinical features and diagnosis.

1. The clinical spectrum of SIBO range from mild to moderate nonspecific gastrointestinal symptoms to more severe clinical consequences, such as nutritional deficiencies and weight loss.
2. SIBO should be considered in the presence of non-specific gastrointestinal symptoms and/or signs of malabsorption, in the absence of another diagnosis on image and endoscopy, especially in those with risk factors.
3. Although less specific and sensitive breath tests are the first line investigation due to it noninvasive technique, low price and accessibility worldwide.
4. Culture of small bowel aspirate is the gold standard diagnostic method. However, it is invasive and operator dependent (perfect technique).