Dr. Lustig: Stop eating Fructose!
Physionic
Feb 7, 2026
Episode description
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0:00 - Introduction
1:02 - A Calorie eaten is not a Calorie eaten
10:27 - Amino Acids are Metabolized Differently
17:32 - Omega-3s and Trans Fats
21:08 - Sugar is Critical to Life
24:02 - Fructose is Addictive and More!
32:19 - Fruit, A Concern
33:18 - How do we Apply all this??
37:17 - Main Points
Original Video: https://www.youtube.com/watch?v=n28W4AmvMDE&t=4974s
References
[1] Hall KD, Guo J. Obesity Energetics: Body Weight Regulation and the Effects of Diet Composition. Gastroenterology. 2017;152(7):1718-1727.e3. doi:10.1053/j.gastro.2017.01.052
[2] Novotny JA, Gebauer SK, Baer DJ. Discrepancy between the Atwater factor predicted and empirically measured energy values of almonds in human diets. Am J Clin Nutr. 2012;96(2):296-301. doi:10.3945/ajcn.112.035782
[3] Cassidy MM, Lightfoot FG, Grau LE, Story JA, Kritchevsky D, Vahouny GV. Effect of chronic intake of dietary fibers on the ultrastructural topography of rat jejunum and colon: a scanning electron microscopy study. Am J Clin Nutr. 1981;34(2):218-228. doi:10.1093/ajcn/34.2.218
[5] Morrison DJ, Preston T. Formation of short chain fatty acids by the gut microbiota and their impact on human metabolism. Gut Microbes. 2016;7(3):189-200. doi:10.1080/19490976.2015.1134082
[6] Biolo G, An abundant supply of amino acids enhances the metabolic effect of exercise on muscle protein. Am J Physiol. 1997;273(1 Pt 1):E122-E129. doi:10.1152/ajpendo.1997.273.1.E122
[7] Torres N, Tobón-Cornejo S, Velazquez-Villegas LA, Noriega LG, Alemán-Escondrillas G, Tovar AR. Amino Acid Catabolism: An Overlooked Area of Metabolism. Nutrients. 2023;15(15):3378. Published 2023 Jul 29. doi:10.3390/nu15153378
[8] Drummen M, Tischmann L, Gatta-Cherifi B, Adam T, Westerterp-Plantenga M. Dietary Protein and Energy Balance in Relation to Obesity and Co-morbidities. Front Endocrinol (Lausanne). 2018;9:443. Published 2018 Aug 6. doi:10.3389/fendo.2018.00443
[10] Westerterp KR. Diet induced thermogenesis. Nutr Metab (Lond). 2004;1(1):5. Published 2004 Aug 18. doi:10.1186/1743-7075-1-5
[11] DeLany JP, . Differential oxidation of individual dietary fatty acids in humans. Am J Clin Nutr. 2000;72(4):905-911. doi:10.1093/ajcn/72.4.905
[12] Plourde M, Plasma incorporation, apparent retroconversion and β-oxidation of 13C-docosahexaenoic acid in the elderly. Nutr Metab (Lond). 2011;8:5. Published 2011 Jan 27. doi:10.1186/1743-7075-8-5
[15] Ząbczyńska M, Glycosylation in the Thyroid Gland: Vital Aspects of Glycoprotein Function in Thyrocyte Physiology and Thyroid Disorders. Int J Mol Sci. 2018;19(9):2792. Published 2018 Sep 17. doi:10.3390/ijms19092792
[16] Westwater ML, Sugar addiction: the state of the science. Eur J Nutr. 2016;55(Suppl 2):55-69. doi:10.1007/s00394-016-1229-6
[17] Volkow ND, Imaging dopamine's role in drug abuse and addiction. Neuropharmacology. 2009;56 Suppl 1(Suppl 1):3-8. doi:10.1016/j.neuropharm.2008.05.022
[18] Meyers AM, High fructose corn syrup induces metabolic dysregulation and altered dopamine signaling in the absence of obesity. PLoS One. 2017;12(12):e0190206. Published 2017 Dec 29. doi:10.1371/journal.pone.0190206
[19] Luo S, Monterosso JR, Sarpelleh K, Page KA. Differential effects of fructose versus glucose on brain and appetitive responses to food cues and decisions for food rewards. Proc Natl Acad Sci U S A. 2015;112(20):6509-6514. doi:10.1073/pnas.1503358112
[20] Soenen S, No differences in satiety or energy intake after high-fructose corn syrup, sucrose, or milk preloads. Am J Clin Nutr. 2007;86(6):1586-1594. doi:10.1093/ajcn/86.5.1586
[21] Spitzer L, Rodin J. Effects of fructose and glucose preloads on subsequent food intake. Appetite. 1987;8(2):135-145. doi:10.1016/s0195-6663(87)80006-5
[23] Angelino D, Fruit and vegetable consumption and health outcomes: an umbrella review of observational studies. Int J Food Sci Nutr. 2019;70(6):652-667. doi:10.1080/09637486.2019.1571021
[24] Angelino D, Godos J, Ghelfi F, et al. Fruit and vegetable consumption and health outcomes: an umbrella review of observational studies. Int J Food Sci Nutr. 2019;70(6):652-667. doi:10.1080/09637486.2019.1571021
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Disclaimer: None of the information provided by this brand is a replacement for your physician's advice. This brand is information for the sake of knowledge and the options of choice it provides, not in any way a personalized prescription. Please consult your physician before making any health related changes.
Mindsip insights from this episode:
Enhance hormone potency through glucose glycosylation
Glucose is critical for hormone function as it attaches to them in a process called glycosylation, which increases their potency.
Utilize fructose as essential energy source for sperm movement
Fructose serves a unique and essential role in the body by being a primary energy source for sperm movement, found in high concentrations in seminal fluid.
Count only absorbed calories from almonds for better nutrition
Due to their high fiber content, when you eat 160 calories of almonds, you only absorb 130, as the remaining 30 calories are passed to your gut microbiome.
Understand body's ability to metabolize trans fats for energy
Contrary to some claims, the body does have the ability to metabolize and break down industrial trans fats for energy, even though they are negative for health.
Focus on nutrition labels instead of calorie absorption details
It's more practical to use nutrition labels as a consistent baseline for your diet and adjust total intake based on results, rather than worrying about the precise number of calories absorbed.
Recognize fructose's role in appetite control over addiction claims
The idea that fructose is as addictive as cocaine is likely an exaggeration, as some human studies show it can lead to better appetite control than glucose.
Utilize protein for higher energy expenditure during digestion
It takes double the amount of energy for your body to prepare an amino acid from protein for burning compared to preparing a carbohydrate.
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