Yes, protein can cause damage, but it depends on several factors including the type of protein, the amount consumed, and the individual's overall health.
Types of Protein-Related Damage
Several scenarios demonstrate how protein can lead to health issues:
-
Excessive Dietary Protein: Consuming too much protein, exceeding the recommended daily allowance, can trigger adverse cardiovascular and metabolic health effects. Research from the University of Missouri School of Medicine highlights this, showing that excess protein initiates cellular signals leading to negative health consequences. [University of Missouri School of Medicine, 2024] This is supported by Harvard Health, stating that too much protein can be harmful. [Harvard Health, 2024] The Mayo Clinic also notes potential issues like bad breath, headaches, and constipation from high-protein diets. [Mayo Clinic] Specific concerns arise with high intakes of red and processed meats. [Mayo Clinic]
-
Kidney Damage: High protein intake can lead to intraglomerular hypertension, resulting in kidney hyperfiltration, glomerular injury, and proteinuria (protein in the urine). This is supported by multiple studies. [NCBI, 2020; NCBI, PMC7460905]. The presence of excess protein in the urine is a sign of kidney damage. [Kidney Fund]. Furthermore, reducing protein intake may help slow kidney damage in people with diabetes. [National Kidney Foundation].
-
Heart Damage: Studies show that the SARS-CoV-2 spike protein (a type of protein) can cause inflammation in heart muscle cells, leading to heart injury. [American Heart Association, 2022].
-
Neurological Damage: Abnormal protein buildup in the brain, as seen in prion diseases, causes brain damage leading to memory problems, personality changes, and movement difficulties. [Johns Hopkins Medicine]. Similarly, in Alzheimer's disease, abnormal proteins release chemicals causing chronic inflammation and further neuron damage. [National Institute on Aging].
Moderation is Key
While protein is essential for health, maintaining a balanced diet and consuming protein within recommended daily allowances is crucial to prevent potential harm. The risk of protein causing damage is significantly higher for individuals with pre-existing conditions like kidney disease. [Healthline] Plant-based protein sources may carry lower risks compared to animal-based sources. [Harvard Health, 2024].
