Ben Greenfield (@bengreenfield) header
Ben Greenfield (@bengreenfield) profile picture

🎙️ Host of the Boundless Life Podcast 🧠 Free Coaching Call @JoinTRIUMPHCoaching 📖 PRECEPTS | NOW ON AMAZON ↓

North Idaho
Joined August 2008
Photo by Ben Greenfield (@bengreenfield)Photo by Ben Greenfield (@bengreenfield)Photo by Ben Greenfield (@bengreenfield)Photo by Ben Greenfield (@bengreenfield)Photo by Ben Greenfield (@bengreenfield)Photo by Ben Greenfield (@bengreenfield)Photo by Ben Greenfield (@bengreenfield)Photo by Ben Greenfield (@bengreenfield)Photo by Ben Greenfield (@bengreenfield)Photo by Ben Greenfield (@bengreenfield)
Ben Greenfield taught the world to live better. And nearly lost everything worth living for. Boundless: The Man Who Became Human follows Ben Greenfield through the collapse of a certainty he built an entire career on. For twenty years, his life was the proof. He was optimized in every direction, which only a select few could reach. This is the story of what happened just outside that reach, filmed with access that wellness media has never been given before. What it uncovers has nothing to do with biohacking. A film by @calebapplegate. From executive producer @ZacEfron. One night only, in select cities. World premiere. A live podcast recording. An open Q&A with Ben and his family. Get your tickets at boundlessdoc.com
24
15
6
233
84,871
Wow. A high-fiber diet just beat out the world’s most popular diabetes drug (metformin): pubmed.ncbi.nlm.nih.gov/4289… (average reported total daily fiber intake was 150-175g and that’s a LOT - I recommend you start at 40g and work your way up, to bowel tolerance)…and in case you’re wondering what kind of fiber the participants got…
14
4
2
63
10,933
One formula contained wheat fiber, oat fiber, highland barley fiber, resistant dextrin, inulin, fructo-oligosaccharides, xylo-oligosaccharides, and konjac gum, providing both soluble and insoluble dietary fiber. Another contained resistant dextrin, inulin, fructo-oligosaccharides, and xylo-oligosaccharides, and primarily provided soluble dietary fiber. Konjac gum salad, anyone? :)
1
2
1,449
Sore post-workout? New study shows just 10g of essential amino acids (EAAs) can significantly reduce post-workout soreness at 24 and 48 hours compared to a placebo: pubmed.ncbi.nlm.nih.gov/4269…
4
1
19
2,827
“If you commit to nothing, everything looks worth doing.” Via @farnamstreet
2
1
17
7,492
You’ve probably heard that you need “progressive overload” to gain strength/muscle from your training program. But research suggests that this does not necessarily mean you have to continually buy heavier weights or keep stacking the plates.
11
2
22
6,930
You can also get meaningful results by simply increasing repetitions (while keeping the load constant) with the weights you are already using (pro tip: most research also says that if you’re using this low weight/high rep approach, it’s important to go to failure): pubmed.ncbi.nlm.nih.gov/3619…
1
6
1,380
For every 10-gram increase in daily alcohol intake, there’s a 4% increase in pancreatic cancer risk BUT (always pay attention to study nuances!), cancer risk only begins increasing at over 15 grams of alcohol per day (approximately 12 oz of regular beer, 5 oz of wine, or 1.5 oz of liquor) - so that glass of organic, biodynamic red wine at dinner isn’t “giving you cancer”... pubmed.ncbi.nlm.nih.gov/4280… (1/2)
3
1
17
6,920
Could training at the time of day when you’re at your STRONGEST make weight training more effective? This study did not find evidence of that, probably because time-of-day differences in performance are overcome by consistently training at the same time of day (if you’re initially weaker in the morning than the evening, the difference would fade over time if you consistently train in the morning): pubmed.ncbi.nlm.nih.gov/4279….
8
1
21
3,025
I wrote about every single factor discussed in this article in my book “Boundless”…
Replying to @a16z
@a16z State of Longevity report is out! @evajsteinman and I surveyed 500 Americans to predict what's next. We're also interviewing people at the cutting edge of health & tech about what they do themselves. My interview with @hubermanlab is out today.
1
3
14
3,740
The fact that placebo pills work for irritable bowel syndrome (pubmed.ncbi.nlm.nih.gov/3360…) suggests that, similar to low back pain, some but not all cases might be mostly “in your head”….
4
1
13
4,158
Oh geez: teapaw.org/i/trending/21170486923… To those claiming "See, I told you Zone 2 is a waste of time!" The 2025 review everybody is citing basically just says that, compared to high-intensity cardio, Zone 2 has no unique, superior effect on mitochondria per minute spent. Are you really going to tell your 80-year-old grandma or friend who just got a knee replacement to go do hill sprints, or to ride a stationary bike aerobically while doing nasal breathing? Sometimes it's not all about "time optimization"...or "all-or-nothing" baby talk.

22
4
3
80
48,685
Many people think blood flow restriction (BFR) is only for fitness training, but it can also be used as an effective muscle recovery modality. See study here: pubmed.ncbi.nlm.nih.gov/4221… - to do this, you likely need the type of cuffs that automatically compress/relax, like I discussed in my podcast here with John Doolittle of @KAATSUGlobal : bengreenfieldlife.com/?p=204…
2
11
3,318
Is it the fast walking…or a sense of purpose? :)
Scientific study tracking over 4,000 people for 12 years finds that people who walk faster tend to live longer.
5
2
1
29
7,979
"Action produces the very information inaction waits for." via @farnamstreet
3
18
8,060