Prebiotics are living microorganisms found in fermented food. ? True ? False
The correct answer and explanation is:
Correct Answer: ❌ False
Explanation:
Prebiotics are not living microorganisms. Instead, they are non-digestible food components—usually types of dietary fiber—that nourish beneficial bacteria (probiotics) already present in the gut. In other words, prebiotics feed the good bacteria, helping them grow and thrive.
The definition of prebiotics is:
“A substrate that is selectively utilized by host microorganisms conferring a health benefit” (International Scientific Association for Probiotics and Prebiotics).
Common prebiotic substances include:
- Inulin
- Fructooligosaccharides (FOS)
- Galactooligosaccharides (GOS)
- Resistant starch
These compounds are found naturally in foods such as garlic, onions, leeks, asparagus, bananas, and whole grains.
On the other hand, probiotics are the living microorganisms (like Lactobacillus or Bifidobacterium) that are often found in fermented foods such as yogurt, kefir, kimchi, sauerkraut, and kombucha. When consumed in adequate amounts, probiotics can help balance gut flora and support digestion and immune health.
Key Differences:
| Feature | Prebiotics | Probiotics |
|---|---|---|
| Living? | No | Yes |
| Function | Feed good bacteria in the gut | Are good bacteria introduced to the gut |
| Found in | Fiber-rich foods | Fermented foods |
Summary:
Prebiotics are non-living substances that help beneficial bacteria grow, whereas probiotics are living microorganisms. The statement that “Prebiotics are living microorganisms found in fermented food” is therefore false, because it incorrectly describes probiotics, not prebiotics.