Welcome to my podcast. I am Doctor Warrick Bishop, and I want to help you to live as well as possible for as long as possible. I’m a practising cardiologist, best-selling author, keynote speaker, and the creator of The Healthy Heart Network. I have over 20 years as a specialist cardiologist and a private practice of over 10,000 patients.

Episode Summary: Safe Lower Limits For Cholesterol Treatment

Dr. Auric Bishop, a cardiologist and CEO of the Healthy Heart Network, hosts this episode with Dr. Warwick Bishop discussing how low LDL (bad) cholesterol can safely be lowered in patients. The episode addresses common concerns about aggressive cholesterol management using newer medications like PCSK9 inhibitors, examining whether extremely low cholesterol levels pose risks to normal bodily functions.

Key Takeaways:

• Newborns naturally have very low LDL cholesterol levels (around 1.5-1.8 mmol/L) during their most metabolically active growth phase, suggesting the body functions normally at these low levels.

• Genetic studies using Mendelian randomization show that people with naturally very low cholesterol levels live long, normal lives without cardiovascular disease or problems with sex hormones, brain function, or nutrient absorption.

• Clinical trials with statins plus ezetimibe demonstrated that 37% of patients achieved cholesterol levels of 1.3 mmol/L or lower over 5-7 years with no adverse events and significantly reduced cardiovascular disease recurrence.

• Research shows cardiovascular benefits continue down to extremely low LDL cholesterol levels of 0.2 mmol/L with no evidence of hormonal, functional, or cognitive problems.

• PCSK9 inhibitors lower cholesterol without the diabetes risk mechanism associated with statins, indicating that low cholesterol itself does not cause diabetes development.

• Detailed neuropsychological testing in over 1,200 patients showed no cognitive decline or brain fog associated with very low cholesterol levels achieved through PCSK9 inhibitors.

• Systematic reviews show statins are associated with decreased dementia risk, including Alzheimer's disease and vascular dementia, rather than increased risk.

• Sex hormone production is more closely linked to HDL (good) cholesterol than LDL cholesterol, so aggressively lowering LDL has minimal impact on hormonal function.