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A Scientific look at ‘Lean in 15’



September 28 , 2016 | Posted by Dave Cripps |

A Scientific look at ‘Lean in 15’

Joe Wicks aka ‘the body coach’ has risen to crazy fame…

Notably through his book ‘Lean in 15’


Now while he does remind me of a modern day Jamie ‘pukka’ Oliver

And yes, his name does sound like that of an EastEnders character

Frequently his book and opinions often come up…


I as a coach often hear these both from people like you

And also through other strength and conditioning coaches, and personal trainers


Often the guy gets slated (as anyone who rises to success does)

But equally gets praised for creating a great method you can utilise to shed the pounds


But based on JW’s philosophy on nutrition and training

AND, comparing that to what we know from science and real life coaching…


Should YOU believe the hype?


  1. Healthy fats – ‘get em in!’


JW promotes the consumption of lots of ‘healthy’ fats

Cool, science shows fat intake can reduce appetite and limit you lure to raid the biscuit cupboard


However, fat is fat, healthy or not…

It’s the most calorie dense nutrient you can consume

This means it doesn’t matter if you overeat on 500 calories of avocados or lard, you will still gain body fat


Conclusion, yep you probably should get more fat in your daily nutrition…


But a lack of awareness on how easy it is to over eat on healthy fats and therefore not loose fat is dangerous


  1. I.T em up!


I’ll be honest, this one does my Wick in


The concept of high intensity interval training is based on science, sweet!


However, consider these studies trained people using training methods which are super intense….

Waaaayyyy, more intense than the aerobics type burpee protocol JW use’s

Consequently, this isn’t H.I.T, therefore you can’t say it does what H.I.T can


That said, it is still a time effective way of training

Which for many could still yield greater energy expenditure than a mundane jog in the ego filled commercial gym



The nutrition approach in general is sound and works on a practical level, that a huge plus, just watch your fat intake

its not H.I.T, but if you have tight nutrition, and are willing to do a few of these each week, you could create an energy deficit to lose some fat

I would not promote it though as the fitness gains people also usually want are really inferior, it would soon loose effectiveness once you become more trained, as the exercises are likely to irritate areas like the lower back, particularly if you’re untrained


BUT, I take my hat off to the man!

There’s no success without reason, and his audience is very different to the type of person we attract and coach (those wanting small changes in their body, l and to bypass the work actually required to great change)


Speak shortly


Dave ‘what could I call my book?’ Cripps