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Blood Sugar & Metabolic Health
Stabilize blood sugar and improve metabolic health with evidence-based nutrition and lifestyle protocols from named physicians and researchers.
If you tried a CGM and got a confusing or scary-looking spike from something ordinary, that is common. A single data point is not a diagnosis; the honest answer is that we do not yet know how much chasing every spike actually changes outcomes in someone without diabetes.
A
Strong evidence
B
Promising, evidence evolving
C
Emerging or single-supplement, covered honestly
Blood sugar spikes and crashes drive energy dips today and, over years, metabolic disease, but you do not need a CGM or a complicated protocol to get the basics right. Zone 2 training, meal sequencing, and cutting ultra-processed food do most of the work; a CGM is a useful mirror, not a requirement. Here is the honest map, ranked by evidence, so you always know your next move.
Metabolic
Blood Sugar Balance Protocol
Metabolic
Circadian / Time-Restricted Eating
Metabolic
Ketogenic Metabolic Protocol
Metabolic
Metabolic Health & Good Energy
Metabolic
Fasting & Keto, the Sustainable Way
Metabolic
Eating for Longevity
Nutrition
The Good Energy Plate
Metabolic
Good Energy Lifestyle: Light, Movement & Heat
Nutrition
Reverse Dieting & Metabolic Adaptation
Nutrition
The Pegan Diet
Metabolic
Personalized Nutrition & Blood Sugar
Metabolic
Using a CGM to Personalize Your Diet
Metabolic
Fasted Mornings & Metabolic Flexibility
Nutrition
Cut Ultra-Processed Food
Nutrition
The Galveston Diet
Metabolic
Exogenous Ketones & Therapeutic Ketosis
Metabolic
Reduce Visceral Fat
Nutrition
Moringa for Antioxidants & Blood Sugar
Morning
The 30/30/30 Morning Fat-Loss Method
Nutrition
Eating to Reverse Heart Disease (The Ornish Diet)
Physical
Zone 2 Cardio: Train Your Engine
Metabolic
Zone 2 for Metabolic Health
Daily
The High-Performance Daily Fat-Loss Routine
Nutrition
The 14-Day Protein-Sparing Fat-Loss Reset
Metabolic Explainer
Insulin Resistance: What It Is, and What You Can Actually Test
Rhonda Patrick
PhD, Biomedical Science · FoundMyFitness
David Sinclair
Longevity Geneticist · Harvard Medical
Ben Greenfield
Coach & Author · Boundless
Mark Hyman
Functional Medicine Physician · The Doctor's Farmacy
Satchin Panda
Circadian Biologist · Salk Institute
Layne Norton
Nutrition Scientist · BioLayne
Dom D'Agostino
Neuroscientist · University of South Florida
Casey Means
Physician · Levels
Gary Brecka
Human Biologist · The Ultimate Human
Dave Asprey
Biohacker, Founder of Bulletproof · Founder · Upgrade Labs, Danger Coffee
Thomas DeLauer
Nutrition Coach & Educator · Keto & Intermittent Fasting
Sean O'Mara
Visceral Fat Researcher · Performance & Health Optimization (MRI-based)
Inigo San Millan
Exercise Physiologist · University of Colorado School of Medicine
Dan Go
Fitness & Fat-Loss Coach · High Performance Founder
Michael Greger
MD, FACLM · Founder, NutritionFacts.org
Compare experts on Blood Sugar & Metabolic Health
Ben Greenfield vs Casey MeansBen Greenfield vs Dan GoBen Greenfield vs David SinclairBen Greenfield vs Dean OrnishBen Greenfield vs Dom D'AgostinoBen Greenfield vs Gary BreckaBen Greenfield vs Inigo San MillanBen Greenfield vs Layne NortonBen Greenfield vs Mark HymanBen Greenfield vs Mary Claire HaverBen Greenfield vs Rhonda PatrickBen Greenfield vs Satchin PandaBen Greenfield vs Sean O'MaraBen Greenfield vs Thomas DeLauerBen Greenfield vs Tim SpectorCasey Means vs Dan GoCasey Means vs David SinclairCasey Means vs Dean OrnishCasey Means vs Dom D'AgostinoCasey Means vs Gary BreckaCasey Means vs Inigo San MillanCasey Means vs Layne NortonCasey Means vs Mark HymanCasey Means vs Mary Claire HaverCasey Means vs Rhonda PatrickCasey Means vs Satchin PandaCasey Means vs Sean O'MaraCasey Means vs Thomas DeLauerCasey Means vs Tim SpectorDan Go vs David SinclairDan Go vs Dean OrnishDan Go vs Dom D'AgostinoDan Go vs Gary BreckaDan Go vs Inigo San MillanDan Go vs Layne NortonDan Go vs Mark HymanDan Go vs Mary Claire HaverDan Go vs Rhonda PatrickDan Go vs Satchin PandaDan Go vs Sean O'MaraDan Go vs Thomas DeLauerDan Go vs Tim SpectorDavid Sinclair vs Dean OrnishDavid Sinclair vs Dom D'AgostinoDavid Sinclair vs Gary BreckaDavid Sinclair vs Inigo San MillanDavid Sinclair vs Layne NortonDavid Sinclair vs Mark HymanDavid Sinclair vs Mary Claire HaverDavid Sinclair vs Rhonda PatrickDavid Sinclair vs Satchin PandaDavid Sinclair vs Sean O'MaraDavid Sinclair vs Thomas DeLauerDavid Sinclair vs Tim SpectorDean Ornish vs Dom D'AgostinoDean Ornish vs Gary BreckaDean Ornish vs Inigo San MillanDean Ornish vs Layne NortonDean Ornish vs Mark HymanDean Ornish vs Mary Claire HaverDean Ornish vs Rhonda PatrickDean Ornish vs Satchin PandaDean Ornish vs Sean O'MaraDean Ornish vs Thomas DeLauerDean Ornish vs Tim SpectorDom D'Agostino vs Gary BreckaDom D'Agostino vs Inigo San MillanDom D'Agostino vs Layne NortonDom D'Agostino vs Mark HymanDom D'Agostino vs Mary Claire HaverDom D'Agostino vs Rhonda PatrickDom D'Agostino vs Satchin PandaDom D'Agostino vs Sean O'MaraDom D'Agostino vs Thomas DeLauerDom D'Agostino vs Tim SpectorGary Brecka vs Inigo San MillanGary Brecka vs Layne NortonGary Brecka vs Mark HymanGary Brecka vs Mary Claire HaverGary Brecka vs Rhonda PatrickGary Brecka vs Satchin PandaGary Brecka vs Sean O'MaraGary Brecka vs Thomas DeLauerGary Brecka vs Tim SpectorInigo San Millan vs Layne NortonInigo San Millan vs Mark HymanInigo San Millan vs Mary Claire HaverInigo San Millan vs Rhonda PatrickInigo San Millan vs Satchin PandaInigo San Millan vs Sean O'MaraInigo San Millan vs Thomas DeLauerInigo San Millan vs Tim SpectorLayne Norton vs Mark HymanLayne Norton vs Mary Claire HaverLayne Norton vs Rhonda PatrickLayne Norton vs Satchin PandaLayne Norton vs Sean O'MaraLayne Norton vs Thomas DeLauerLayne Norton vs Tim SpectorMark Hyman vs Mary Claire HaverMark Hyman vs Rhonda PatrickMark Hyman vs Satchin PandaMark Hyman vs Sean O'MaraMark Hyman vs Thomas DeLauerMark Hyman vs Tim SpectorMary Claire Haver vs Rhonda PatrickMary Claire Haver vs Satchin PandaMary Claire Haver vs Sean O'MaraMary Claire Haver vs Thomas DeLauerMary Claire Haver vs Tim SpectorRhonda Patrick vs Satchin PandaRhonda Patrick vs Sean O'MaraRhonda Patrick vs Thomas DeLauerRhonda Patrick vs Tim SpectorSatchin Panda vs Sean O'MaraSatchin Panda vs Thomas DeLauerSatchin Panda vs Tim SpectorSean O'Mara vs Thomas DeLauerSean O'Mara vs Tim SpectorThomas DeLauer vs Tim Spector
Do I need a CGM if I don't have diabetes?▾
It can be a useful personalization tool, but current evidence does not clearly show that optimizing every spike improves outcomes in healthy people; treat it as a mirror, not a mandate.
What is the fastest way to blunt a blood sugar spike?▾
Eating protein and fiber before carbs and a short walk after eating both have real evidence; neither requires a device.
Is Zone 2 or high-intensity training better for blood sugar?▾
Both help; Zone 2 has the deepest mitochondrial and fat-oxidation evidence base and is the more sustainable long-term habit for most people.
Are blood-sugar supplements like moringa worth it?▾
The evidence is early and much thinner than for the core lifestyle levers; food and movement come first.
Protocols for Blood Sugar & Metabolic Health