Chronic kidney disease has become an under appreciated epidemic in itself and it largely mirrors and has been driven by our ever growing diabetes epidemic. Many people that engage in relatively high protein diets will see an elevated BUN level on their lab panel and may feel that as a flag for concern and in some instances it can be, in other instances it is a normal and expected variation. While in truth the kidneys are incredibly complex organs with a wide variety of functions, their basic function remains as a selective filter that eliminates and retains substances within our bloodstream. What is blood urea nitrogen BUN? Another common non pathological cause is a high protein diet. Like all lab numbers we have to take things into clinical context before we make a conclusion as to their meaning. As most of you know I follow a fully carnivorous diet and ingest plenty of protein in the form of delicious ribeye and T-bone steaks, in general I consume anywhere from grams of protein a day and have done so for about a year and a half. Now we have seen a number of studies recently that have seen younger athletes being looked at with similar protein loads with no evidence of kidney dysfunction, but what about me, as a 50 plus year old athlete? I recently had some labs taken and among those labs it was noted that my BUN was slightly elevated at 29 with a normal top end range on that particular assay being So is there an easy way to sort this dilemma out?
See Fig S1 provided as online supplementary material for scatterplots with Spearman correlations between main outcome variables at baseline. Search for. Kidney Int Suppl. A blood urea nitrogen BUN test measures the amount of nitrogen in your blood that comes from the waste product urea. The second is a urinary protein test. Also, contrary to what many will tell you, anything with water can contribute to hydration. Changes From Baseline and End-of-Period Comparisons When end-of-period measurements were compared with baseline values, the protein diet showed mean increases in eGFR of 3. Can you see how the wrong bacteria growing in your digestive tract can potentially increase ammonia in your body and elevate BUN on a blood test?
Since weightlifters are continually breaking down muscle protein this is a good thing, even in the absence of a high protein diet, blood creatinine concentrations tend to be elevated. Any studies that show a correlation between renal kidney dysfunction and protein intake are in those with some type of diagnosed, pre-existing renal kidney disease like diabetic nephropathy, glomerular lesions, etc. Intervention Participants were fed each of 3 diets for 6 weeks. A BUN test is done to see how well your kidneys are working. Therefore, just because the kidneys have to “work” harder, doesn’t mean that this is a negative thing. To this end, its level is a reflection of the body’s muscle mass or the amount of protein in the diet. Is caffeine dehydrating? Until then take care enjoy that steak medium rare, your species earned it! It is a measure of kidney function.