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Frame from The '5kg in 50 days' Diet! Plays via YouTube's privacy-enhanced embed

The '5kg in 50 days' Diet!

17 videos recommended on HN
YouTube
Cited on HN 4 times, 2021–2025, never outright recommended score 0
Years with an HN recommendation, 2007–2026

HN cites it in arguments that exercise alone is an ineffective way to lose weight and that caloric deficit matters most.

Thunderf00t applies a simple energy mass balance to weight loss, showing how much exercise is needed to burn off extra calories compared with eating less. He concludes that cutting intake is the easier route and that hunger fades after the first week.

4 citations · Explainers

4 Hacker News comments

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

@airhead969 Mar 2021 Cites it
on HN thread Drinking strong coffee before exercising increases fat-burning, new study finds
Caffeine is performance-enhancing, raises metabolism (temporarily), and suppresses hunger. Unfortunately, it's readily-apparent that you can never outrun your fork, so forget about "burning calories" through cardio. The goal of fitness to lose weight ought to be weightlifting to gain as much muscle mass as possible to raise one's BMR. Passive metabolism is about the only way to do it without enrolling in BUD/S. In general, gymrattery and endless treadmill running are wasted effort. [this video]
Argues exercise is ineffective for weight loss.
@hi-v-rocknroll Aug 2024 Cites it
on HN thread Peloton to charge $95 activation fee for used bikes
Yep, it's basically a distributed gym membership without the gym except for a single expiring, proprietary widget that lives on your property. It's largely ineffective to lose weight by exercising, and so much easier to reduce caloric intake. [this video]
Supports claim that exercise is ineffective for weight loss.
@burnt-resistor May 2025 Cites it
on HN thread Why walking is the most underrated form of exercise (2017)
Dangerous, inefficient, and time-consuming compared to moderate exercise and eating less. Caloric restriction is, by far, more effective than exercise for net deficit. Thunderf00t did a video on this. [this video]
Caloric restriction beats exercise for net deficit.

Video list and Hacker News comment labels from HackerTube (prompted by @karpathy), released under ODC-By 1.0, built on the open-index/hacker-news archive. Hacker News data is provided by Y Combinator; comments remain the work of their authors. Video titles, channel names and thumbnails belong to their creators and are shown via YouTube. HackerTube Watch is an unofficial edition. Data export of 2026-10-31.

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