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ATHLEAN-X is an American fitness brand that offers science-based workout programs and sports supplements developed by Jeff Cavaliere, a certified strength and conditioning specialist and licensed physical therapist. The brand targets people who want to train with a structured, evidence-informed approach, whether at home or in a gym.

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At a glance

About Athleanx

Main category
Workout programs and supplements
Founder
Jeff Cavaliere MSPT, CSCS
Target audience
Adults seeking science-based fitness training
Training formats
Home and gym workouts
Protein per serving
30g
Protein flavours available
12
Certification
NSF Certified (protein supplements)
Customer service phone
888-428-4532
ATHLEAN-X positions itself in the mid-to-premium segment of the online fitness market, appealing to adults who are serious about improving their physique and athletic performance without relying on guesswork. The brand's philosophy centres on applying sports science principles that are typically used with professional athletes to everyday training. Jeff Cavaliere, who previously served as Head Physical Therapist and Assistant Strength Coach for the New York Mets, is the face and driving force behind the programs and supplements. The typical customer is someone who has tried generic fitness advice before and is now looking for a more structured, credible alternative backed by professional expertise.
June 2026

Active promotions

Ready to use with your order at Athleanx.

Bundle deal: save up to 22 percent on premium protein orders, with free shipping included on qualifying supplement purchases.
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Free digital resource available for new visitors, such as the Biceps Black Book, offered as a downloadable gift upon signing up.
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Recent

Athleanx in the news

Recent updates and background about Athleanx, summarised in our own words.

Summaries by Image Review based on publicly available sources and our own editing. External links may contain affiliate links.

Frequently asked questions

What others ask about Athleanx

Answers to the most common questions, based on search behaviour and our own research.

Is ATHLEAN-X a reliable fitness brand?

ATHLEAN-X was built by Jeff Cavaliere, who has professional credentials as a licensed physical therapist and certified strength and conditioning specialist, and worked with the New York Mets. The brand has accumulated over 11 million followers and shares a large number of before-and-after results from real customers on its website.

What kind of workout programs does ATHLEAN-X offer?

The brand offers structured training plans focused on goals such as muscle building, fat loss, and athletic conditioning. Programs are designed for both home and gym training, and most workouts are said to take 30 minutes or less.

Are the supplements from ATHLEAN-X independently tested?

The protein powders sold by ATHLEAN-X carry NSF Certification, which is an independent quality and safety standard commonly used in professional sports. The brand states it uses clinically dosed formulas rather than proprietary blends.

Can I save money on supplements at ATHLEAN-X?

ATHLEAN-X offers product bundles and stacks, with savings of up to 22 percent and free shipping available on certain protein orders. The website also features a quiz to help customers find the right program or supplement combination.

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