Jesse James West's Temu supplement test gets a scientist's warning
Pre-workout powder, nicotine patches and strong coffee enter the experiment, while a viewer raises a question about testing products together.
Why this story? The video opened at a pace of 989,953 views a day, 6.9 times a normal first day on this channel (144,380).
I Tested "Legal" Chinese Stimulants
Video summary
Press to jump
- 0:26West examines and tries pre-workout powder and liquid L-carnitine bought from Temu.
- 1:14Dr. Mike Israetel warns against ingesting supplements with visible mold or impurities.
- 5:18Nicotine patches become the next workout test, with West assessing focus and calming effects.
- 10:08West tries beetroot powder mixed with baking soda during another training session.
- 14:28A strong-coffee test leads to a workout and a check of his heart-rate readings.
- 18:24West compares an authentic energy shot with a version purchased from Temu before training arms.
The warning comes early. Jesse James West finds strange clumps and black particles in supplements bought from Temu, then brings sports scientist Dr. Mike Israetel onto a video call.
"I would just completely rule out taking any supplements ever that have visible mold," Israetel tells him. That is advice about what to avoid, not confirmation of what the particles are.
West's "I Tested SCAM Temu Stimulants…" drew about 684,000 views in 12 hours, already well beyond the channel's usual full-day audience. After his school-sports visits, this upload brings the experiment back to his own workouts, with a different product or combination on each day.
The opening combination goes badly. West trains after taking pre-workout powder and liquid L-carnitine, experiences stomach distress and heads for the restroom. Later, he receives a message saying the purported Cutler Nutrition supplement he bought is counterfeit, and assigns the combination his lowest rating.
The subsequent tests range from nicotine patches to beetroot powder mixed with baking soda, strong coffee and an energy-shot comparison. Israetel remains a sounding board, including when West's heart-rate response to the coffee is lower than expected. The description explicitly tells viewers not to recreate the experiment.
One substantive viewer objection concerns the setup rather than the spectacle: taking two products together makes it difficult to tell which caused a particular effect. That distinction matters most on the opening day, when West gives both products a shared verdict.
Published on Trari
Where next?
What viewers say
It's not fair to use two products at the same time. If only one of them is bad and the other is fine, you'll end up feeling bad either way, and you'll end up labeling the second product—the one that's fine—as bad too.
@osuzhdayu-maksimalnoSee it on YouTube
Public comments from the video's page on YouTube
- Channel
- Jesse James West
- Subscribers
- 11,400,000 ▲ 100,000 this week
- Channel views, last 7 days
- 24,424,690
- Channel views, pace per day
- 4,049,697 (on a normal day: 3,711,428)
- Video published
- October 25, 2026
- Video views so far
- 683,827 (less than a day online)
- Video views, pace per day
- 989,953
The numbers
The supplement experiment passed the channel's usual first-day views before it had been online a full day.
💡 Test your knowledge
Which sports scientist advises Jesse during the supplement experiment?
Dr. Mike Israetel joins West by video call to discuss the products and their potential risks.

