Garlic, which God used to strengthen the Hebrews by His grace, is also good for the blood and heart. Notice:
“Garlic has been reported to be capable of human blood pressure regulation…glucose level regulation, platelet aggregation…the reduction of atherosclerosis building up in the arterial system…” (Asian Pacific Journal of Tropical Biomedicine, Volume 5, Issue 4, April 2015)
“Of the seven trials that compared the effect of garlic with that of placebo, three showed a significant reduction in systolic blood pressure (SBP) and four in diastolic blood pressure (DBP). The overall pooled mean difference in the absolute change (from baseline to final measurement) of SBP was greater in the subjects who were treated with garlic then in those treated with placebo...”(CA Silagy, HA Neil, “A meta-analysis of the effect of garlic on blood pressure,”J Hypertens, 12 (4) (1994), pp. 463-468)
“Our meta-analysis suggests that garlic preparations are superior to placebo in reducing blood pressure in individuals with hypertension…” (K Ried, OR Frank, NP Stocks, P Fakler, T Sullivan, “Effect of garlic on blood pressure: a systematic review and meta-analysis,” BMC Cardiovasc Disord, 8 (2008), p. 13)
Garlic raises nitric oxide levels, and thus relaxes the inner muscles of blood vessels, widening them, leading to greater blood flow and lower pressure:
“Potent activation of nitric oxide synthase by garlic: a basis for its therapeutic applications…” (Curr Med Res Opin. 1995;13(5):257-63.)
“Aged garlic extract enhances production of nitric oxide…” (Life Sci. 2002 Jun 21;71(5):509-17.)
This is another reason garlic is good for male fertility, etc. Garlic (and onions) increase nitric oxide.