Ben Greenfield

Ben Greenfield

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Author and endurance coach; biohacking, fitness, nutrition, and healthspan strategies.

Natural Playgrounds Strengthen Children’s Immune Systems
SocialMay 6, 2026

Natural Playgrounds Strengthen Children’s Immune Systems

Finland replaced artificial playground surfaces with natural elements like mud and soil, and the results surprised even researchers… … Children playing in these "rewilded" environments showed significant improvements in their immune systems, including reduced pathogens and increased immune-regulating T cells, highlighting...

By Ben Greenfield
Meta‑analysis Finds No Benefit to Extra DHA
SocialMay 6, 2026

Meta‑analysis Finds No Benefit to Extra DHA

I am sometimes asked why @getkion fish oil does NOT have “extra” DHA…fact is, a recent meta-analysis of 96 randomized controlled trials at https://t.co/YZMb5dar8P showed no clear advantage of decreasing the EPA:DHA ratio…learn more about the formula here: https://t.co/8REbBJKoBJ

By Ben Greenfield
Seed Oils Aren't Inflammatory; Cooking Methods Are
SocialMay 6, 2026

Seed Oils Aren't Inflammatory; Cooking Methods Are

New study shows that seed oils DON'T really cause inflammation: https://t.co/kxEXYt2ghe This is something I've mentioned on my podcast a few times... ...it's not the oils per se. It's frying them, eating them in ultraprocessed foods/with fast food, etc. Guilt by association....

By Ben Greenfield
80+ Therapeutic Peptides Approved Across Major Disease Areas
SocialMay 6, 2026

80+ Therapeutic Peptides Approved Across Major Disease Areas

Did you know... over 80 therapeutic peptides have been approved to treat a wide array of diseases, ranging from infectious diseases, cardiovascular, dysmetabolic diseases, and cancer: https://t.co/kW4zgAcmE3

By Ben Greenfield
My Trusted Peptide Source: Clean Labs, Certified Products
SocialMay 5, 2026

My Trusted Peptide Source: Clean Labs, Certified Products

Since everyone is DM'ing me about my peptides "source", this is it: https://t.co/feX9CCNNYz (code BGL10 saves) Why? Clean labs, good certificates, catalog of injectables/nasal sprays/patches/capsules, etc.

By Ben Greenfield
Yoga Benefits Mental Health Regardless of Time
SocialMay 5, 2026

Yoga Benefits Mental Health Regardless of Time

For depression, anxiety, stress, sleep, quality of life, etc., is it better to do yoga in the morning or in the evening? New research indicates it doesn’t actually really matter: https://t.co/wAbMSheMci https://t.co/bsy56wQEyq

By Ben Greenfield
Eat 0.18‑0.25 G Protein per Pound per Meal
SocialMay 5, 2026

Eat 0.18‑0.25 G Protein per Pound per Meal

How much protein per meal should you eat for maximizing muscle protein synthesis, based on your body weight? .18-.25g/lb. More here: https://t.co/KqtDMSO4iI

By Ben Greenfield
Mixing Exercise Types Cuts Early Death Risk 19%
SocialMay 4, 2026

Mixing Exercise Types Cuts Early Death Risk 19%

This new 2026 BMJ Medicine study of over 100,000 people followed for over 30 years suggests that varying your exercise routine (doing a mix of strength, cardio, sports, etc.) is linked to a 19% lower risk of premature death compared...

By Ben Greenfield
Creatine Boosts Complex Cognitive Tasks, Not Daily Alertness
SocialMay 4, 2026

Creatine Boosts Complex Cognitive Tasks, Not Daily Alertness

Yes, creatine helps with sleep deprivation issues, but mainly for performance of complex central executive tasks - probably not gonna keep you “awake” during your normal rote daily activities: https://t.co/6XoKTvZXbu https://t.co/g4rbS3XiHh

By Ben Greenfield
You Can Achieve More, Faster than You Think
SocialMay 3, 2026

You Can Achieve More, Faster than You Think

"People underestimate themselves and overestimate how long things take. You can do far more than you think, far better, and far faster." via @farnamstreet

By Ben Greenfield
GLP‑1 Drugs Cause Less Muscle Loss than Assumed
SocialApr 30, 2026

GLP‑1 Drugs Cause Less Muscle Loss than Assumed

Do GLP-1 drugs really cause muscle loss? Turns out perhaps less than what we thought… here’s what you need to know, from: https://t.co/VwrRxnoblW https://t.co/M2RaE1f3EG

By Ben Greenfield
Preserve Muscle and Strength While Cutting Calories
SocialApr 30, 2026

Preserve Muscle and Strength While Cutting Calories

Can You Build Muscle While Losing Fat? How to Keep Strength and Lean Mass When In a Caloric Deficit https://t.co/XuusPPYBgC

By Ben Greenfield
Hotel Rooms Trap CO₂, Harming Cognition—Ask for Open Windows
SocialApr 27, 2026

Hotel Rooms Trap CO₂, Harming Cognition—Ask for Open Windows

How bad is air quality in hotel rooms? The ever-informed @tferriss recently reported (at https://t.co/gWO0WYpm6s) "James Nestor, author of Breath: The New Science of a Lost Art, travels with a portable CO₂ monitor called an Aranet4 and has been recording levels...

By Ben Greenfield
Raw Peptides Degrade Instantly, Never Achieve Effect
SocialApr 26, 2026

Raw Peptides Degrade Instantly, Never Achieve Effect

Hi @MartinShkreli - if as you say at https://t.co/qJh2vgV0Wm that "raw peptides have a half-life measured in seconds or minutes, meaning your body destroys them almost instantly after you inject them. They never get a chance to do anything."...

By Ben Greenfield
Tiny Steps Disarm Fear, Reveal Its Illusion
SocialApr 26, 2026

Tiny Steps Disarm Fear, Reveal Its Illusion

"One way to beat fear is with steps so small they don't scare you. As you get closer to fear, you realize there was never anything there to be afraid of." via @farnamstreet (or my take.... just take the bigger scary steps...

By Ben Greenfield
Continuous Glucose Monitors Aid Weight Loss in Non‑Diabetics
SocialApr 24, 2026

Continuous Glucose Monitors Aid Weight Loss in Non‑Diabetics

The effects of wearing a continuous glucose monitor are generally studied in participants with diabetes, but this new study on non-diabetics shows great promise for CGM’s when it comes to successful weight loss: https://t.co/cvlYi7bdo5 https://t.co/1LLnf2FAWp

By Ben Greenfield
Study Confirms CBN Improves Sleep Quality
SocialApr 23, 2026

Study Confirms CBN Improves Sleep Quality

CBN (not CBD) strikes again with a study backing up what other research has shown: it’s *fantastic* for sleep quality (but I only use it when traveling, so I maintain sensitivity) - https://t.co/kP6dD1d129 https://t.co/1OYsI2gfZ5

By Ben Greenfield
Bitter Foods Linked to Better Blood Sugar Control
SocialApr 22, 2026

Bitter Foods Linked to Better Blood Sugar Control

Eating more bitter foods (including dark chocolate and broccoli, which I never thought bitter but…whatever…) might be associated with better blood sugar outcomes: https://t.co/fKgAK7GsLw. Here’s my go-to bitters capsule “pre-carb”: @GetKion https://t.co/5qCmeOjebh https://t.co/pCTeB5YT1W

By Ben Greenfield
Doctor’s Insider Tips to Ease NAD IV Experience
SocialApr 21, 2026

Doctor’s Insider Tips to Ease NAD IV Experience

Feel “weird” during an NAD IV? Here are the insider tips from a top doctor, @joseph_purita, to make things smoother:

By Ben Greenfield
Vaccinated Donor Plasma Contains No Spike Proteins or mRNA
SocialApr 20, 2026

Vaccinated Donor Plasma Contains No Spike Proteins or mRNA

One of the top questions I get about young plasma exchange (YPE): “What if the donor was vaccinated? Does that mean I’m getting spike proteins or mRNA injected into me?” Short answer: No. Here’s the breakdown... https://t.co/JDoAi2yPmR

By Ben Greenfield
Sinclair's 1g NMN: Myth Vs. Cellular Reality
SocialApr 18, 2026

Sinclair's 1g NMN: Myth Vs. Cellular Reality

David Sinclair is one of the smartest longevity researchers on the planet. I interviewed him here: https://t.co/dZCOAD5PLU and recently @tombilyeu released an interview with him here: https://t.co/F2pHBy9xuw... ...in which @davidsinclair says he takes 1g of NMN every morning. But some people say...

By Ben Greenfield
FDA Reverses Ban on 12 Peptides for Review
SocialApr 15, 2026

FDA Reverses Ban on 12 Peptides for Review

So... @SecKennedy just announced that 12 peptides the Biden FDA shoved into "Category 2" — effectively banning them from regulated compounding pharmacies and driving people to the black market - are being pulled back for legitimate scientific review. Here's what each one...

By Ben Greenfield
Coaches Craft Personalized Plans Using Your Data, Schedule, Demands
SocialApr 14, 2026

Coaches Craft Personalized Plans Using Your Data, Schedule, Demands

https://t.co/dPuUxiaqfE The coaches I have personally trained at TRIUMPH Coaching don’t hand out generic plans. They build around your data, your schedule, and your actual demands: https://t.co/Mmwq3Iqn6o

By Ben Greenfield
Skip Meals Around Sleep to Improve Metabolism
SocialApr 13, 2026

Skip Meals Around Sleep to Improve Metabolism

If you are struggling with the symptoms of metabolic issues, such as blood glucose fluctuations, high body fat percentage/inability to lose weight, low heart rate variability, high heart rate, etc., then it’s pretty likely you would benefit from not eating...

By Ben Greenfield
Remember Impermanence, Slow Down, Truly Live
SocialApr 12, 2026

Remember Impermanence, Slow Down, Truly Live

Entrepreneur Andrew Anabi on cherishing life, via @farnamstreet : “The best way to cherish life is to remind yourself of life's impermanence. It is to remember that every time you see someone that is one less time you see them. It...

By Ben Greenfield
Seeking Experiences with GTWY Peptide From Β‑Lactolin
SocialApr 11, 2026

Seeking Experiences with GTWY Peptide From Β‑Lactolin

New smart drug peptide alert… (Possibly): who has experience with GTWY peptide isolated from β-lactolin? Research here: https://t.co/Sg7twStXvr

By Ben Greenfield
Space Protein Even in Deficit to Preserve Muscle
SocialApr 10, 2026

Space Protein Even in Deficit to Preserve Muscle

Even when in a calorie deficit, for maintaining/building muscle and maximizing muscle protein synthesis, spreading protein intake throughout the entire day (or “pulsing” with compounds like leucine or essential amino acids) is a very good strategy (at around 0.5-0.55 g/kg):...

By Ben Greenfield
Muscle‑building Carbs: Less than You Think, Context Matters
SocialApr 9, 2026

Muscle‑building Carbs: Less than You Think, Context Matters

You need to turn *this many* carbs to maximize muscle growth…the answer is a little nuanced (e.g., Do you train fasted? Do you train high volume? Do you train multiple times in a day?)… But still less carbs than you...

By Ben Greenfield
Runners Carry Genes That Guard Against Soft‑Tissue Injuries
SocialApr 8, 2026

Runners Carry Genes That Guard Against Soft‑Tissue Injuries

Born to run? Competitive runners have better genes for resistance to injury: "Collagen Gene Polymorphisms Previously Associated with Resistance to Soft-Tissue Injury Are More Common in Competitive Runners Than Nonathletes." https://t.co/LRVb5hkLFx https://t.co/GroBFhSk2T

By Ben Greenfield
Coconut Water Matches Sports Drinks for Rehydration
SocialApr 7, 2026

Coconut Water Matches Sports Drinks for Rehydration

This just in: coconut water (despite having lower sodium) is just as good as common branded “sports electrolyte drinks” for rehydration: https://t.co/amq8BEvGp0 https://t.co/rPXZZeyq9Y

By Ben Greenfield
Vegetarian and Vegan Diets Linked to Higher Hip Fracture Risk
SocialApr 6, 2026

Vegetarian and Vegan Diets Linked to Higher Hip Fracture Risk

Could a plant-based diet make your bones weaker? In this meta-analysis that looked at 529,672 participants (average ages of 46–63; 57% women, 43% men), both vegetarian diets and vegan diets were associated with a HIGHER risk of hip fracture: https://t.co/3u18PxPmrk...

By Ben Greenfield
Peptual Peptides Pass Tests Despite Contamination Claims
SocialApr 6, 2026

Peptual Peptides Pass Tests Despite Contamination Claims

If you read this “peptides are contaminated” article carefully, you will notice that this source that I recommend (Peptual) purchased by reporter via @thegarybrecka website tested just fine… https://t.co/Cq8I6D8QZz

By Ben Greenfield