Is Eating Only Bananas Healthy?

Dear Davey,

I watched a YouTube video about a woman who eats only bananas. She said that the diet has improved her life and that she’s lost a lot of fat. Is this diet really something that I should try?


banana-man-eat-400x400Hey Shane,

Eating only bananas isn’t a great idea. Why? Because bananas lack important nutrients that your body needs. Bananas have almost no vitamin A, no calcium, no vitamin d, no vitamin b-12, almost no iron and just a gram of protein. They also lack significant quantities of the essential fats that your body needs.

The banana diet is actually an offshoot of a more popular diet that was designed by Dr. Douglas Graham. It’s called the 80/10/10 diet. In a nutshell, this diet says that at least 80% of your calories should come from carbohydrates. Another 10% can come from each protein and fats. The diet is raw and vegan, meaning that all food sources are plant-based and uncooked. As such, the diet is big on fruits and vegetables. There’s no meat or even grains as part of this diet.

As with any diet, there are pros and cons.

In terms of cons, it is very difficult to keep vast quantities of ripe fruits and vegetables in your home. When we buy produce from the grocery store, it usually isn’t ripe – so the timing can be a challenge. Also, because the diet is very strict, it’s difficult to maintain at social gatherings and restaurants. Like any raw diet, sustainability and proper education can be a challenge.

In terms of pros, look no further than the many 80/10/10 enthusiasts. For fans, this diet is life-changing. Practitioners note having tremendous amounts of energy, body fat loss, improved sleep and better productivity.

My recommendation is this: Diets are very personal.

You know who you are and what you’re able to do. The right diet for me might not be the right diet for you. Eating entirely fruits and vegetables isn’t something that floats my boat, but it doesn’t necessarily mean that this diet isn’t a possibility for the next person. And just because a diet is difficult to maintain doesn’t necessarily mean that it’s impossible for you. For most people, I recommend a very realistic diet of lean meats, nuts, beans, whole grains, fruits and generous amounts of vegetables. In fact, you can read all about it in my Insanely Easy Guide to Eating Smarter.

But none of that means that the 80/10/10 diet is necessarily a bad choice for you. Diets are personal.


About Davey Wavey

Davey Wavey is a certified personal trainer and YouTube sensation with more than 250 million video views. For Davey's fitness tips and secrets, sign up for his free monthly newsletter - or download any of his affordable and effective workout programs.


  1. Steve Blower says:

    Hi Davey,
    I live in London and just got back from a few days touring in Texas.
    What astonished me is how incredibly difficult it was to eat insanely smart at breakfast in hotels.
    Virtually everything had sugar in it, and fat, and when I saw how many waffles people were putting away, it did explain why so many of them have dysfunctional overweight bodies, to be truthful.
    I did go with the assumption that scrambled eggs were actually made out of eggs.
    And was insanely excited one day to find fresh blueberries lurking unloved near the waffle maker one day.
    But that was about it.
    How do you do it, when you are on the road?
    They even add sugar to peanut butter, for goodness sake!!!!

  2. Jean Carlos says:

    Ei pessoal, os melhores resultados que eu já tive foi com a Red hot fino (apenas google it) Sem dúvida a dieta mais útil que eu já tentaram.

  3. hi davey i livein london…………………………………………………………………………………..they add suger to peenutt butt 4 godnesssssss snake!

  4. WAIT IS THIS FROM FREAKING SHANE DAWSON!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

  5. im a 7 year old boy on my mums cumputer,

  6. love u davey