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How Sugar & Processed Foods Impact Your Health | Dr. Robert Lustig

11 videos recommended on HN
YouTube
2 HN users recommended this podcast episode2 months2024–2026 score 2.5
Years with an HN recommendation, 2007–2026

HN mentions it mostly as a source for the argument that sugar is toxic, though some commenters push back on claims like fructose being addictive.

A long Huberman Lab podcast episode with Dr. Robert Lustig on the calories-in, calories-out model and how sugar, fructose, fiber and processed foods affect insulin, liver and metabolic health.

1 strong recommendations · 1 recommendations · 1 critical · Podcasts · intermediate · partly dated

3 Hacker News comments

From the HN archive; up to 20 kept per video, favoring different commenters. Recommendations first.

@plexman Jan 2024 Strongly recommends
on HN thread Reasons to grow and keep big muscles
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Sugar is poison. Check out the latest talk from Dr Robert Lustig [this video] Its a 3.5h video, but roughly sugar is as toxic as alcohol and the food industry is adding it to most products. In short if it has a label (like most processed foods with many ingredients) you should avoid, switch to the ones that don't have (like an apple). This book is also great "The hacking of the American mind" `While researching the toxic and addictive properties of sugar for his New York Times bestseller Fat Chance, Robert Lustig made an alarming discovery—our pursuit of happiness is being subverted by a culture of addiction and depression from which we may never recover. Dopamine is the “reward” neurotransmitter that tells our brains we want more; yet every substance or behavior that releases dopamine in the extreme leads to addiction. Serotonin is the “contentment” neurotransmitter that tells our brains we don’t need any more; yet its deficiency leads to depression. Ideally, both are in optimal supply. Yet dopamine evolved to overwhelm serotonin—because our ancestors were more likely to survive if they were constantly motivated—with the result that constant desire can chemically destroy our ability to feel happiness, while sending us down the slippery slope to addiction. In the last forty years, government legislation and subsidies have promoted ever-available temptation (sugar, drugs, social media, porn) combined with constant stress (work, home, money, Internet), with the end result of an unpr
Long talk arguing sugar is as toxic as alcohol.
@dlahoda Jul 2026 Recommends
on HN thread Pizza, pasta, potatoes, protein – how Italian children became so overweight
This explains how sugars and fast carbs can be healthy [this video] Tldr; highly processed food looses vitamins(micro nutrient starvation) and starch/fiber are needed to slow absorption until it gets to bacteria producing drugs(barbiturate and precursors to neuromediators including), and give signals over vagus nerve to head. May be summary of few books from me too. Do not recall. Add on top chewing fibery food takes time, feeling full starts earlier of being full, and saliva ferments help to digest either.
Explains how sugars and fast carbs can be healthy.

Citations, criticism and jokes

@loeg Jan 2025 Pushes back
on HN thread Type 2 Diabetes and cardiovascular disease attributable to sugar beverages
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[this video] 22:31 - "fructose is addictive" No. [link] [link] 25:14 - "the fiber is what mitigates the absorption ... that fructose wasn't for you" Not how that works. You absorb the same fructose whether or not it's co-located with fiber. 33:40 - "this whole calories in / calories out makes no sense ... there's no study that actually shows that cutting calories makes a difference" Completely wrong and against the literature. [link] 1:00:17 - "fructose causes leaky gut; that causes inflammation of the liver and ultimately systemic inflammation" No. [link] 1:31:10 - Asked to explain trend towards obesity over the past 20 years if not the transition away from trans fats. "It's the increase in sugar." No. Sugar consumption has fallen steadily since about 1999, while obesity continues to rise. [link] 2:03:40 - "The mean increase in lifespan from being on a statin is 4 days." No. They have a huge positive impact on mortality and CVD events. [link] 2:05:10 - "LDL is not really the problem, there are two LDLs: large buoyant, small dense. Large buoyant is irrelevant, cardiovascularly neutral." No. [link] (small particles do penetrate easier, but large particles have more apoB; they're both bad) 2:26:39 - "when people go on diet sweeteners ... are they reducing the fat? no." Wrong again. There's a wealth of literature on this. [link] Directly following that, he goes on to totally misrepresent a 2011 study in which groups were assigned diet soda, water, milk, or full sugar soda; the study

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