The intake of dates being the most important source in hail populations. These dates have been studied their effects on human health in this area. The dates have been used by humans for thousands of years. Although several adverse health effects of dates have been known for a long time. A strong relationship between intake of dates and its effect on blood elements, glucose and lipid in population of hail, kSA has been identified in this study. The effect of dates on blood glucose showed that no significant increase on blood glucose. Also, there were no significant increase in blood elements (na, k, cl and ca) in the population of hail that consume dates. On the other hand there were a significant increase on blood urea, creatinine and uric acid. The liver enzymes ast, alt and alp were a significant decrease in blood of human that consume the dates. Concerning lipid profile, we noted that variety induced no significant variation of different lipid parameters while the variety reduced the ldlc level (bad cholesterol), thus improving the lipid profile. The effect of dates on blood glucose showed that only the variety Tamesrit had a significative decrease on blood glucose. Results generally showed that dates intake by the population of hail were always no significant increase in their blood elements Na, K, Cl and Ca. Also, there is no significant variation in liver functions and kidney functions in this population and no significant variation of different lipid parameters while the variety reduced the LDLc level (bad cholesterol), thus improving the lipid profile in the population of human being in Hail, KSA.