The blood contains urea-derived nitrogen (a substance formed by the breakdown of protein in the liver).
Kidneys remove the urea from the blood and excrete it in the urine.
A kidney issue may be indicated by a high level of urea nitrogen in the blood which is also known as blood urea nitrogen or BUN.
Blood urea levels can be lowered by consuming less protein and avoiding products that contain creatinine.
Carrots and potatoes, for example, help to alkalize urine and lessen the effects of high blood urea levels.
Cinnamon, lemon, red bell pepper, turmeric, and other healthy foods can also be used to lower the BUN. Keeping the body hydrated above all else is extremely important.