Table 2.

Changes in gut microbiota in human diseases[35]

Diseases	Change in microbiota
Allergies	Lactobacillus spp. ↓
	Bifidbacterium adolescentis ↓
	Clostridium difficile ↓
	Helicobacter pylori ↓
Autism	Bacteroidetes ↑
	Proteobacteria ↑
	Actinobacteria ↓
	Firmicutes ↓
Obesity	Bacteroidetes ↓
	Lactobacillus ↑
	Firmicutes/Bacteroidetes ratio ↓
Type 2 Diabetes	Firmicutes ↓
	Clostridia ↓
	Betaproteobacteria ↓
	Bacteroidetes/Firmicutes ratio ↑
Celiac disease	Bacteroides vulgatus ↑
	Escherichia coli ↓
	Clostridium coccoides ↓