6.8% Body Fat at 72. So Why Am I Prediabetic?

Summary

The host, Chris, describes unexpected findings from extensive testing at HLI. Despite having just 6.8% body fat and a history of Ironman competition, he had insulin resistance and prediabetes, below-average bone density, and a high genetic risk for several conditions. Testing also revealed reduced heart function, which later declined further and prompted a cardiology evaluation.

Chris argues that the results gave him important reasons to act, while acknowledging that some tests—especially whole-body MRI—are not recommended as routine screening for everyone.

The video explores possible contributors to insulin resistance. Researchers interviewed by Chris describe excess fat in the liver and pancreas as important in type 2 diabetes. The discussion also challenges the idea that carbohydrates alone cause diabetes, and considers evidence about saturated fat, high-glycemic-load foods, body weight, and individual genetic risk. Chris notes that endurance training can affect glucose readings and A1C, so those numbers need context.

Wellness and Self-Care Strategies Discussed

• Eat more slowly. Chris found that taking longer over meals was associated with smaller glucose rises for him. Slower eating may also give satiety signals time to work.
• Take a walk after larger meals. His glucose monitors generally suggested this helped limit post-meal rises, though readings varied.
• Interpret glucose-monitor data cautiously. Chris describes inconsistent readings between devices and even when eating the same meal. He presents continuous glucose monitors (CGMs) as potentially informative, but questions their value for people without diabetes.
• Consider the whole meal and portion, not just a food’s glycemic index. The video distinguishes glycemic index—how quickly a food raises glucose—from glycemic load, which accounts for the amount consumed and its overall impact.
• Use a balanced, evidence-based dietary approach. Chris favors dietary guidance developed from broad research, including patterns that emphasize legumes and whole grains, rather than relying on short-term results from restrictive diet trends. The video also discusses limiting saturated fat and red meat in the context of long-term health research.
• Address nighttime hunger practically. Chris says a small handful of nuts helps him fall back asleep when he wakes hungry. This is his personal experience, not a general prescription.
• Include appropriate strength, impact, and posture work. The video suggests that distance running alone may not be enough to support bone density, and that strength training or carefully performed impact exercises may help. It stresses correct technique to avoid overloading joints.
• Work on posture and flexibility. Chris credits a trainer’s posture and flexibility work with reducing his cycling-related back, shoulder, and neck pain.
• Discuss concerning test results with clinicians. Chris’s delayed follow-up on reduced ejection fraction illustrates the importance of bringing findings to a cardiologist. Heart testing and treatment decisions are presented as individualized.
• Weigh the benefits and risks of screening. Whole-body MRI can reveal abnormalities, but incidental findings may lead to anxiety and unnecessary follow-up procedures. The video notes that major medical organizations do not recommend it as general screening for asymptomatic people. Chris’s case is presented as a personal decision shaped by his history.

Presenters and Sources

Presenter and people featured or quoted: Chris (host; surname not given); Dr. Lee (cardiologist); Dr. Pearson (HLI); Dr. Malek; radiologist Matthew Davenport; Roy Taylor; Brad Stanfield; Walter Willett; Nicola Hess; Kevin Hall; Lisa Mosconi; Dr. Shai and his research team; Jeff (trainer); Tony; and an unnamed Stanford stroke researcher. Mike Mosley is mentioned in the discussion of MRI research.

Research, organizations, and institutions mentioned: Human Longevity Inc. (HLI); the American College of Radiology; the Nurses’ Health Study; research by Walter Willett’s Harvard team; studies by Kevin Hall’s team, including a paper discussed as published in JAMA; long-term carbohydrate and mortality research in The Lancet; studies by Dr. Shai’s team; and the Stanford Stroke Center.