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How Does Low Vitamin D Harm Kidney Function?
Creatinine is a late marker of kidney disease and often remains normal while damage is already underway. Low vitamin D contributes to early renal injury through hormonal imbalance, rising parathyroid hormone, RAAS activation, inflammation, and protein loss in the urine. These changes precede declines in GFR and explain why patients with “normal labs” may still be at significant risk for progressive kidney disease.

David Stephen Klein, MD FACA FACPM
Feb 115 min read


Can Vitamin D Supplementation Cause Kidney Damage?
Vitamin D deficiency is not simply a consequence of kidney disease—it can actively accelerate renal injury. Proper vitamin D signaling suppresses harmful hormonal pathways, protects glomerular structures, and limits fibrosis. Concerns about kidney damage stem from rare cases of vitamin D toxicity, not physiologic replacement. When dosed appropriately and monitored, vitamin D supports kidney health rather than harming it.

David Stephen Klein, MD FACA FACPM
Feb 63 min read


The Value of Urine PCR in Diagnosing Persistent or Complicated Urinary Tract Infections
Urinary tract infections (UTIs) are traditionally diagnosed using urinalysis followed by culture and sensitivity testing. While effective in most cases, these methods may miss fastidious or slow-growing organisms, fail to identify mixed infections, or return negative results despite continued patient symptoms. Urine polymerase chain reaction (PCR) testing provides a highly sensitive molecular alternative that detects microbial DNA directly, identifies antibiotic-resistance ge

David S. Klein, MD FACA FACPM
Dec 18, 20255 min read


Exploring the Complexities of Urinary Tract Infections (UTI) in Adults and Elderly Patients.
Urinary tract infections (UTIs) are one of the most common infections among adults and elderly patients, impacting their health and...

David S. Klein, MD FACA FACPM
Mar 14, 20257 min read


Can Raw Pumpkin Seeds Help Reduce Nighttime Bathroom Trips for BPH Sufferers ? Natural Alternative for Benign Prostatic Hypertrophy and Erectile Dysfunction
Raw Pumpkin Seeds, Shelled. Perfect 'snack' or supplement for Prostate Health The Benefits of Pumpkin Seeds for BPH, Erectile...

David S. Klein, MD FACA FACPM
Mar 6, 20254 min read


Unlocking the Power of D-Mannose: A Comprehensive Look at Its Role in Treatment and Prevention of Urinary Tract Infections
D-Mannose is a wonder supplement for persons suffering from Urinary Tract Infections. For those with recurrent UTI's it is life changing.

David S. Klein, MD FACA FACPM
Feb 17, 20258 min read


Diagnosing Urinary Tract Infections in the Elderly: PCR as Standard of Care
PCR is the standard of care in the diagnosis of urinary tract infections, particularly in the elderly and nursing home patients.

David S. Klein, MD FACA FACPM
Dec 27, 20246 min read


Beta Glucans: Where molds help us fight bacterial infections, help wounds heal and helps us recover!
Molds survive by creating chemicals called beta glucans. These protect the mold from being eaten by bacteria. These same chemicals can...

David S Klein, MD
Jan 10, 20242 min read


Know your Uric Acid Level! It could prolong your life. Long Ignored Cardiac Risk Factor.
Managing High Uric Acid, Naturally, for a Healthier Life. Levels over 5.5 increase risk of heart attack and death. High uric acid is...

David S Klein, MD
Oct 3, 20233 min read


Chronic Urinary Tract Infections? An inexpensive trick that may save your life.
https://amzn.to/3LoCgDs If this sounds a bit dramatic, it really is an understatement of fact! You pay attention to the extra sanitary...

David S Klein, MD
Sep 4, 20232 min read
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