Exercise Scientist Critiques Chris Pratt's INSANE Transformation

Dr. Mike Israetel Reacts to the best and worst Hollywood workouts and celebrity training, and evaluates how effective they are, based on current science!

0:00 Meet the Trainer
4:00 Exercises and Technique
9:35 Chris Pratt Training
11:01 Diet
19:32 Dr Mike Ratings

[nicorellius]

It's quite refreshing to see Mike praise a Hollywood trainer, rather than shred them to pieces. Both versions are damn hilarious too!

[AndyMcDermottFitness]

Duffy just shared this with me, actually! Yes, he's one of the best humans around. Fun day of shooting, although the camera crew made me do a bazillion reps...😂 Thanks for the hilarious video too, and for all the legit work you're doing to inspire and help people feel/look/do better. I'm always learning and really glad to have found your channel. Thank you!

[Ixuyu]

Congrats on 800k, I’ve learned so much from this channel. You have helped me break through the stagnant intermediate stage.

[xjudgexdreddx]

A point you mentioned that really rang true for me was the one about getting back in shape after having already been fit previously. I’m currently 14 weeks back into strength building after a 4-year hiatus from the gym. I was an aspiring powerlifter with a training total of about 1400 lbs. Life happened and I fell into a horrible depression. I was so scared of returning to the gym and having to start from square one to regain all the strength that had previously taken me YEARS to attain. After getting some encouragement from my 16yo son who has gotten into fitness himself, I brushed off the cobwebs and got right back into lifting. I’m not yet where I once was, but my strength as well as my muscles have been returning remarkably fast, and I feel as good as ever!

Dr. Israetel might I suggest doing a video on the topic of returning to strength training/bodybuilding after a period of inactivity? I feel like it might encourage others who find themselves in a similar situation that I was in.

Anyway, I love your channel. I appreciate your academic approach to the subject, as well as your humor. I’ve learned a great deal from you since I started watching.

[matthewschneider]

I've lost 40lbs, two pants sizes, gone from an extra large-to large-to medium now back to a large for shoulders and chest in 4 months since discovering this channel. Changed my life, dude. Listen to this guy.

[TravisFabel]

JAMES "DUFFY" GAVER is a former Marine sniper and ex-Navy SEAL turned celebrity personal trainer. His A-list clients include Ashton Kutcher, Brad Pitt, Scarlett Johansson, Adam Sandler, Channing Tatum, Chris Hemsworth, and Chris Pratt to name a few. He has worked in the film industry for many years.

[nathanhexem]

Legit can relate to Chris Pratts initial weight loss. Was 295 in February of this year and trying to get in much better shape. Currently 240 and working to get to 220 before going into recomp. Thank you for the constant videos and congrats on 800k

[AugmentedDictatorGames]

"I'm straight aren't I?" 😂😂😂

[armin]

Turns out celebrity workouts can be great when men's health isn't involved

[valerieodonnell]

I just started working out with a trainer because I don’t know what I’m doing. Your videos confirm that my trainer knows what he’s talking about because everything he tells me about proper form lines up with what you say. He’s not Duffy, but I’m not a hollywood celebrity either, so I’m sure he’s good enough for me.

[orbbb]

If you were to line up all the trainers you've had on this series, Duffy is the one I would look at and say "you're who I want training me" based solely on looks. It's no surprise he is also the best at actually training people. Great video as always!

[TheKateamka]

I know I’m a women and this content might not be made for me, but I really appreciate your honesty on trainers like this. I also love that you’re educated in physical fitness and give real advise on muscle growth! I’m going to share your content with my boyfriend as we are both getting into body building. Also your content is entertaining, so it makes it really fun to learn!

[kylekelly]

Dr Mike I just want to thank you! I’ve adopted your training and my gains have exploded! I’ve been focusing on technique instead of weight and I am looking good!

[silvialimeme]

I am currently rewatching this video. Seing Dr. Mike getting exasperated is funny but seeing him gushing over quality training is just chef's kiss. As someone who workouts at home and has been lost trying so many fitness influencers workouts is refreshing to see that the basics are the way to go.

[adamp]

Started lowering the weight on bench, going nice and slow on the eccentric, stopped bouncing whatsoever off my chest, and I’ve noticed the best chest gains of my life @29 in terms of size. Sure I’m no longer repping out 275 and I’m only repping 225-240, but it just feels so good and my chest is looking great

[CanadianOffroadx]

17:50
Saving my gym life.
Started working out when i got to highschool(15)
Now im 27
Havent worked out like I used to for about 6-7 years.
I decided to take 2 months off and within 1 month, ive got my body back, muscle locking is leaving and my mobility & strength is going very well within just 7 weeks of training! Thank you Dr Mike! Youre a blast to watch. Im 6ft 1, I was 250lbs about 1.5-2 years ago. Im currently sitting around 190.

[visionx]

😂😂 Duffy has training figured out, but Pratt doesn't. Those pull-ups and pushups had me wheezing.

[justinbarnett]

As a kid who read all these muscle and fitness magazines and tried to figure out what worked and what didn’t, I can’t imagine the information overload online about what workouts you should do.
This is why I’m glad I came across Dr Mike’s channel. I love when anyone exposes frauds but he gives props when the exercise is correct.

[grizleeh]

As a patriotic Welshman I feel obligated to call you out here Mike, that is not a Midlands accent, it’s a Welsh accent! Cymru am byth🏴󠁧󠁢󠁷󠁬󠁳󠁿

[rubixcubesolve]

Dr. Mike with 1m subscribers still taking the time to responds to comments. What a G