Table 2: Potential nutritional dissimilarities among Arabs and Jews that might influence IBD trends in Israel.
| Environmental factor | Arab | Jews | References |
| Nutritional counseling | low | high | [25] |
| Western diet | increasing | high | [25] |
| Mediterranean diet | higher | lower | [36] |
| Monounsaturated fatty acids | more | less | [36] |
| n-6 polyunsaturated fatty acids | less | more | [36] |
| Olive oil | more | less | [36] |