this really bothered me
95% of people aren’t making this dead-simple dietary change.
Arnold Schwarzenegger <[email protected]>
Share
Arnold's Pump Club promotes the importance of adding fiber to one's diet, citing a large study that found eating more fiber reduces the risk of various diseases. They highlight that most Americans do not get enough fiber, but suggest simple additions to one's routine can help close the gap. The brand also mentions developing something to help with the fiber gap.
What the raw message shows
From the headers
- Sent with
-
Beehiiv See it in the headers
Across Arnold's Pump Club's email
- Sends
- About 6 a week
- DMARC
-
Not enforced
Failures are monitored but still delivered.
The copy
599 words · about 3 min to read
The Most Powerful Dietary Intervention in Nutritional Science Has Been Sitting There (And Ignored By 95% Of People)
Most nutrition advice asks you to subtract something. Cut carbs, drop calories, eliminate this food, avoid that one. What if the most powerful thing you could do was just add more of one thing to your diet?
In one of the largest studies we’ve ever seen (and we’ve covered thousands), scientists found that eating more fiber meaningfully reduced your risk of heart disease, stroke, type 2 diabetes, and colorectal cancer.
Researchers analyzed 185 prospective studies and 58 clinical trials representing approximately 135 million person-years of data, which is about as close to definitive as nutrition science ever gets. Compared to people eating the least fiber, those eating the most saw 15 to 30 percent lower rates of all-cause and cardiovascular mortality.
At a minimum, you want about 25 grams per day. Unfortunately, the average American currently eats around 15 grams. Even more staggering, data suggests that 95 percent of Americans don't get enough fiber.
You don't need a dramatic diet overhaul to close the gap. A cup of lentils and a whole avocado are both loaded with fiber. Add an apple and a handful of almonds to your current routine, and you're getting more than the average person. Pick one high-fiber food you actually enjoy and start there, and the rest gets easier.
Or, if you need help, we developed something special to help close the fiber gap.
A Note From Arnold: We Did Something About The Fiber Gap
I've spent 60 years in fitness. I've watched this industry sell people everything from exotic superfoods and random ingredients with names nobody can pronounce, to supplements that change every three years when the trend shifts.
How many of you have wasted money on detox teas, testosterone boosters, or fat loss supplements?
Meanwhile, the most powerful dietary intervention in nutritional science has been sitting there the whole time, with too much data to ignore.
Fiber matters. It's real health, longevity, gut health, and heart protection. But it's boring. No one posts about it.
That bothered me. So we decided to do something about it. And that's why we spent the last two years building Fiber+. It’s the first and only supplement we’ve ever developed. It’s that important.
When we partnered with Momentous to create Fiber+, I told them I only wanted to do this if we did it right. Not a basic powder in a new container. Not a product that moves things through your gut and calls it a day.
For that, you need resistant starch. It's something we first wrote about in this newsletter years ago, not long after we started, and I immediately asked Adam to look into it more.
Resistant starch is the ingredient that most fiber products are missing. It directly feeds your good gut bacteria. They eat it. I'm not the science guy, but Adam says it drives the kind of inflammation reduction and metabolic improvements that show up in your cholesterol, blood sugar, and energy.
Fiber+ actually uses three distinct fiber sources. Psyllium for immediate results you can feel — the sludge, as I call it. Resistant starch (Solnul™) to transform your microbiome. Rice bran hull for long-term protection. No artificial sweeteners. No artificial flavors. No orange flavor. 6 grams of fiber per serving.
If you're already taking probiotics, keep taking them. But understand what you're missing without fiber: you're importing healthy bacteria and giving them nothing to eat. Think of it as soil for everything already working inside you. You wouldn't plant flowers without soil.
The words as text: what a screen reader can follow, and all there is when images don't load.
What the headers say
Read from the message's own headers, as it arrived.
- Came from
-
o215.ptr4268.schwarzenegger.com
· 149.72.150.178
Beehiiv's sending servers
- SPF
- Pass for em2589.schwarzenegger.com
- DKIM
-
- Pass signed by schwarzenegger.com
- DMARC
-
Pass for schwarzenegger.com
Policy: none, so failures would still be delivered
- Unsubscribe
-
One-click
Meets the Gmail and Yahoo rule for bulk senders.
- Complaints
-
Feedback loop set up
Mailbox providers can report spam complaints straight back to the sender.
Show all 25 headers Hide the headers
As received, minus the delivery side: the archive's own addresses show as [recipient], its mail servers as [receiver], signatures are left out and unsubscribe links trimmed to their host.
Route
- Received
- from o215.ptr4268.schwarzenegger.com (149.72.150.178) by [receiver] (cloudflare) id 2iPsWXzexo2A for <[recipient]>; Tue, 08 Sep 2026 23:15:58 +0000
- Received
- by recvd-668757f9cc-ll24p with SMTP id recvd-668757f9cc-ll24p-1-6AA0972E-F5 2026-09-08 23:15:58.764318524 +0000 UTC m=+3644575.172942959
- Received
- from MzM1OTE2ODY (unknown) by geopod-ismtpd-24 (SG) with HTTP id 2MqMt2_uQY6uY1DIzNkJ1w Tue, 08 Sep 2026 23:15:58.744 +0000 (UTC)
Authentication
- Received-SPF Authentication result
- pass ([receiver]: domain of [recipient]@em2589.schwarzenegger.com designates 149.72.150.178 as permitted sender) receiver=[receiver]; client-ip=149.72.150.178; envelope-from="[recipient]@em2589.schwarzenegger.com"; helo=o215.ptr4268.schwarzenegger.com;
- Authentication-Results Authentication result
- [receiver]; dkim=pass header.d=schwarzenegger.com header.s=5b7 header.b=Vz1PZIUX; dmarc=pass header.from=schwarzenegger.com policy.dmarc=none; spf=none ([receiver]: no SPF records found for [email protected]) smtp.helo=o215.ptr4268.schwarzenegger.com; spf=pass ([receiver]: domain of [recipient]@em2589.schwarzenegger.com designates 149.72.150.178 as permitted sender) smtp.mailfrom=[recipient]@em2589.schwarzenegger.com; arc=none smtp.remote-ip=149.72.150.178
Platform
- x-beehiiv-ids Identifies Beehiiv
- {"account_name":"https://arnoldspumpclub.schwarzenegger.com/","category":"automation_step","email_generated_at":1788909358,"user_id":"69cc9605-b59a-4e5a-a91e-91120246acec"}
- x-beehiiv-type Identifies Beehiiv
- automation_step
- x-list-id
- 69cc9605-b59a-4e5a-a91e-91120246acec
- x-list-owner
- <mailto:[email protected]>
- x-newsletter-id
- https://arnoldspumpclub.schwarzenegger.com/
- x-newsletter-signup
- https://arnoldspumpclub.schwarzenegger.com/subscribe
- X-SG-EID
- u001.kVOnjYVX26cmN5P1FyRANU9qxnDjz4plGa1J/M0FL/Fs13BqdjiGaGncoCTugHsMJjhn4QeO3SXBMs6NftogIQlE7DJWKnY34usJ7ePPpfCZhlO6RPAnuKkZAP4hj0OwpipUBJinATijy9VtGdu7DfRuK0VtZhlzl8mj2X3dWBmmPky+26GAq3ctDilnunnXXSIOj6GP2t1FlsDVp0sNariKQ2JxiyqEa0Y+TFAA8BvyUL8qJtchOxWDe4Zavz/zjkRxFW2wu9ZEMbPoXeQbLQ==
- X-SG-ID
- u001.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
- X-Entity-ID
- u001.YYUjHoyTMCS5hdY+xrwXDg==
Unsubscribe and feedback
- Feedback-ID
- automation_step:69cc9605-b59a-4e5a-a91e-91120246acec:c30e8088a6065bb
- List-Unsubscribe
- <mailto:…@unsub.beehiiv.com>, <https://arnoldspumpclub.schwarzenegger.com/…>
- List-Unsubscribe-Post
- List-Unsubscribe=One-Click
Message
- Content-Type
- multipart/alternative; boundary=2d80332123a1de2cb74d9c1232714e5874de591b3fade6d61fd82268dba1
- Date
- Tue, 08 Sep 2026 23:15:58 +0000 (UTC)
- From
- Arnold Schwarzenegger <[email protected]>
- Mime-Version
- 1.0
- Message-ID
- <2MqMt2_uQY6uY1DIzNkJ1w@geopod-ismtpd-24>
- Subject
- this really bothered me
- Reply-To
- Arnold Schwarzenegger <[email protected]>
- sId
- 69cc9605-b59a-4e5a-a91e-91120246acec
More from Arnold's Pump Club
All 46 emailsSimilar campaigns from other brands
Different brands running the same play. Compare any of them side by side.
Archived for reference and commentary. Arnold's Pump Club, its logos and content are the property of their respective owners; Inbox Archive claims no affiliation and has disabled all links. If you own this content and would like it removed, get in touch.