Cellular health

Explore the foundations of health at the cellular level, including mitochondrial function, oxidative stress, and cellular repair mechanisms. Understanding cellular health is key to optimizing energy, slowing aging, and maximizing long-term performance.

The worst foods for gut health and how they disrupt your entire system

The worst foods for gut health and how they disrupt your entire system

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Dec 06, 2025 · 10 min read

Ultra-processed foods high in added sugar, artificial sweeteners/additives, and unhealthy fats can measurably change microbiome composition within 24 hours. Over time, those patterns may weaken the protective mucosal barrier and increase intestinal permeability, allowing bacterial components (like endotoxin) to enter the bloodstream and contribute to systemic inflammation. Here’s the clinical evidence for which foods do ...

BPC-157 FDA status in 2026: Compounding and legality

BPC-157 FDA status in 2026: Compounding and legality

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Dec 03, 2025 · 13 min read

As of 2026, BPC-157, CJC-1295, and ipamorelin are not FDA-approved drugs, and all appear on the FDA’s Section 503A “Category 2” list (FDA Category 2 list, accessed February 15, 2026). Thymosin beta-4, which is often marketed online under the nickname “TB-500,” also appears on the FDA’s Section 503A “Category 2” list (FDA Category 2 list, ...

Gary Brecka gene test: What DNA methylation really tells you about your health

Gary Brecka gene test: What DNA methylation really tells you about your health

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Nov 27, 2025 · 15 min read

DNA methylation tests estimate biological age and population-level risk patterns, but they cannot diagnose disease or reliably tell you which supplements you need. They measure methyl groups attached to cytosine at thousands of CpG sites and use algorithms (epigenetic clocks) to generate scores. Here’s how to read a Gary Brecka style methylation report without overpaying ...

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