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Jordan Feigenbaum, MD, MS (@jordan_barbellmedicine), Instagram profile photo
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Jordan Feigenbaum, MD, MS

Doctor
@jordan_barbellmedicine
Doctor, Coach, Lifter. @barbell_medicine 📍San Diego Pre-order our book, Signal: 👇🏻
  • Healthcare
  • Following 444
  • Followers 61.7K
  • Engagement 2.25%
  • Avg comments 97

About Jordan Feigenbaum, MD, MS

Jordan Feigenbaum, MD, MS (@jordan_barbellmedicine) is a Doctor creator on Instagram, also filed under Healthcare. The account has 61,652 followers and 1,153 published posts. Recent posts average 1,333 likes and 97 comments, an engagement rate of 2.25%.

With 61.7K followers, Jordan Feigenbaum, MD, MS is a micro creator by the common 10,000 to 100,000 definition. Set against 444 accounts followed, the audience works out to about 139 followers per account Jordan Feigenbaum, MD, MS follows. Jordan Feigenbaum, MD, MS uses an Instagram professional account. Flinque files Jordan Feigenbaum, MD, MS under Doctor, with Healthcare as a secondary category.

The Instagram bio for Jordan Feigenbaum, MD, MS runs to 11 words across 4 lines. The bio mentions @barbell_medicine. The latest activity Flinque has on record for Jordan Feigenbaum, MD, MS dates from May 2026.

Story Highlights

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1,153 Posts

Of the 10 most recent posts shown for Jordan Feigenbaum, MD, MS, 9 are carousels and 1 is a video. That mix leans toward carousels. Jordan Feigenbaum, MD, MS has built a substantial archive of 1,153 posts. Against the audience, that is roughly 53 followers for each post published. Jordan Feigenbaum, MD, MS also keeps 7 story highlights on the profile. All 10 carry captions, averaging 73 words each. The captions are written mainly in English. Words that recur across them include data, been, muscle, actually and told.

CNN called this morning because the Enhanced Games start tomorrow and MK-677 is everywhere. Merck shelved it in 2011 because it tripled the heart failure rate and didn’t otherwise work. Here’s what the trials actually show.

Edit: I was told there were a few people using it at the games, but that appears to have been bad info since there’s a short list of approved agents. Still, the info on MK-677 stands!
Women have 1/10th the testosterone of men. Same relative muscle and strength gains. Swipe.
The WHO said to avoid sweeteners, but their own controlled trial data disagrees. Do the swipey thing and send to a friend who thinks “regular soda is better than diet”.
Tepid take: the muscle wasting concern on GLP-1s is probably overblown.

88% of people on semaglutide aren’t hitting protein targets, averaging 33 grams a day, and yet the muscle loss picture is more favorable than the headlines suggest.

A more controversial take, which is fairly defensible, is that GLP1s produce better body composition than diet alone if matched for weight loss. I suspect RT is would wipe out any advantage, as it’s a real sledgehammer effect-wise.

I would recommend consuming more protein for most individuals on GLP1s. A protein supplement may be helpful depending on preferences. If going that route, look for 3rd party testing, cGMP compliance, and < 120 Cals per serving.

We have articles about GLP1s, protein, and muscle loss on our site if you want to read more.
If you’ve ever been told lifting is bad for your back or you’re too fragile to lift, this one’s for you.

The MRI finding, the bent-over position, the weight on the bar. The story sounds airtight, but the data says otherwise.

What did your doctor or PT tell you about lifting and your back? Drop it below.
Fewer than 1 in 20 women in this age group meet resistance training guidelines under the strictest definition. The market’s response has been to make the prescription more specialized, more proprietary, and harder to start.

Swipe through for what the trial data actually shows.
Rest is the wrong prescription for tendinopathy, and the tissue pays for it on the first run back. Tendons heal through loading and typically get worse through rest.

Check our tendinopathy guide on the site!
A man with obesity is nine times more likely to be testosterone deficient than a man at a healthy body weight. The mechanism has a name, it’s been in the research literature for years, and it has nothing to do with aging, generational decline, or whatever your favorite influencer is blaming on microplastics this week. It’s a body composition story.

The mechanism is reversible. The clinic just has to be willing to look for it.

Episode 3 of our Signal book launch series drops tomorrow, and the pre-sale page is now live. The book ships in June.

What questions do you have about testosterone?
ESPN reported that Darryn Peterson was told high-dose creatine caused his full-body cramps before his freshman season at Kansas.

The story doesn’t make sense. Peterson described his “baseline level was already high” and creatine “made the levels unsafe.” That’s likely to be serum creatinine, the kidney function marker on a standard metabolic panel, not creatine itself. They’re not the same thing, and there’s no clinical mechanism connecting elevated serum creatinine to exercise-associated cramping.
The studies we actually have show creatine supplementation reduces cramping frequency.

Swipe for the full breakdown.

What questions do you have about creatine?

Check out our article on creatine for the full review.
Dr. Gabrielle Lyon’s argument starts with something true. Muscle drives insulin sensitivity and is central to the adaptations that reduce metabolic risk. Her conclusion, that obesity is primarily a disease of too little muscle, is where the data runs out.

People who can train should. Resistance training improves muscle function and produces real benefits across the board. None of that is in dispute. The important muscle-specific benefit is improved muscle function, not the mass itself.

What the data doesn’t support is prioritizing muscle gain above fat loss in someone carrying excess visceral fat. Visceral adiposity independently predicts heart disease, diabetes, and all-cause mortality after full adjustment. Building muscle doesn’t move that risk the way losing the fat does.

This thread breaks it down and we talk about this in our new article on sarcopenia, which is now live on our website.

Jordan Feigenbaum, MD, MS's engagement

Jordan Feigenbaum, MD, MS's engagement rate on Instagram is 2.25%, between 1% and 3%, or 1 to 3 likes and comments per 100 followers. On a typical post that comes to about 1 like or comment for every 44 followers. An average post collects 1,333 likes and 97 comments, close to 14 likes for each comment.

Engagement rate

2.25%

Avg likes
1.3K
Avg comments
97
Interactions : followers
1 : 44

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Research Jordan Feigenbaum, MD, MS further

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Frequently asked questions

These answers about Jordan Feigenbaum, MD, MS are generated from the Instagram profile data Flinque holds for the account.

Who is Jordan Feigenbaum, MD, MS?

Jordan Feigenbaum, MD, MS (@jordan_barbellmedicine) is a Doctor creator on Instagram, also filed under Healthcare. Jordan Feigenbaum, MD, MS uses an Instagram professional account. The Instagram bio for Jordan Feigenbaum, MD, MS runs to 11 words across 4 lines.

How many followers does Jordan Feigenbaum, MD, MS have?

Jordan Feigenbaum, MD, MS has 61,652 followers on Instagram (61.7K). Set against 444 accounts followed, the audience works out to about 139 followers per account Jordan Feigenbaum, MD, MS follows. Jordan Feigenbaum, MD, MS has built a substantial archive of 1,153 posts.

What is Jordan Feigenbaum, MD, MS's engagement rate?

Jordan Feigenbaum, MD, MS's engagement rate on Instagram is 2.25%, between 1% and 3%, or 1 to 3 likes and comments per 100 followers. On a typical post that comes to about 1 like or comment for every 44 followers. An average post collects 1,333 likes and 97 comments, close to 14 likes for each comment.

What does Jordan Feigenbaum, MD, MS post about on Instagram?

Flinque files Jordan Feigenbaum, MD, MS under Doctor, with Healthcare as a secondary category. Of the 10 most recent posts shown for Jordan Feigenbaum, MD, MS, 9 are carousels and 1 is a video. The 10 recent Instagram captions Flinque holds for Jordan Feigenbaum, MD, MS repeatedly use the words data, been, muscle, actually and told. Jordan Feigenbaum, MD, MS writes those captions mainly in English. Jordan Feigenbaum, MD, MS keeps 7 story highlights, which open with a free Flinque account.

How do I contact Jordan Feigenbaum, MD, MS for a collaboration?

Jordan Feigenbaum, MD, MS's contact details are not published on Flinque's public profile. The Instagram bio links to 5 external sites, and a free Flinque account opens those links. Brands with a free Flinque account can shortlist Jordan Feigenbaum, MD, MS and use Flinque's outreach tools wherever a contact route is on file.

Jordan Feigenbaum, MD, MS's own Instagram profile is the one outbound link Flinque publishes for the account, and the 5 bio links open after signing up.

Public profile data sourced from Instagram. Flinque is not affiliated with Jordan Feigenbaum, MD, MS.

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