Hi
Please write the introduction section for my chapter. You must cover the following points:
1. The beneficial effect of dietary nitrate on blood pressure and endothelial function.
2. Importance role of oral bacteria in converting Nitrate (NO3) to Nitrite (NO2) then Nitric Oxide (NO).
3. Biological effect of (NO) on blood pressure.
4. Potential effect of (NO3) as a prebiotic treatment.

Please use attached papers (no. 1 & 2) only for writing the main points because they have all the information you need. However, I added 4 more references (no. 3 , 4 , 5 and 6) for more information and supporting ideas.

**Please write Doctoral Level and UK English language**

Thanks.