Was Jack LaLanne Right?

Was Jack LaLanne Right?

Exercise and Your Health

What can we learn from Jack LaLanne and how we prevent macular degeneration?

Jack LaLanne, the pioneer of diet and exercise died this week.  He was 96 years old.  He was a chiropractor, fitness and diet expert, bodybuilder, weightlifter and was best known for his fitness television show aired from 1951 to 1985.

Eating Healthy and Staying Fit

Jack was an exercise fanatic, working out 2 hours every morning, followed by a rather regimented two meals a day consisting of hard-boiled egg whites, broth, oatmeal, soy and fruit.  He ate lots of fish and did not drink coffee.

Long before diet and exercise were popular, LaLanne promoted the benefits of leading a healthy life and did so by leading by example.

Jack LaLanne’s European Health Spas eventually became Bally Total Fitness.  He is responsible for the “power of juice” coined to promote what is now the Power Juicer.

What Does This Mean? You can’t help but associate Jack LaLanne with exercise, nutrition and longevity.

Was it the exercise, good nutrition or both that led to his longevity?  You might be right if you think so.

But we don’t really know that.

It could be that the LaLanne family has a great “longevity” gene and that Jack might have lived just as long had he never exercised, smoked and drank.  We don’t really know that either.  (It seems as though his mother did live to near 90 and his brother lived to be 97.)

As in Mr. LaLanne’s case, there are many variables that could have caused his longevity.

The same is true with diet and eyesight…particularly macular degeneration.  We don’t really know if diet, or vitamins, really have an impact on our vision.  There are too many variables for us to know for sure.

Part of the job of good science is to create a hypothesis.  Does variable ‘x’ cause a particular result?  For instance, does lutein help macular degeneration?  Will Omega-3 fatty acids save our sight?

Testing the hypothesis is even harder.  Ideally you want to keep all variables the same, except for the one variation that you are testing.  In a perfect world, you’d be doing all your testing on clones.  All have the same exact DNA and the only variable would be the change in diet…feeding them only fatty acids or lutein.

For now, the best we can do is to perform our testing on huge numbers of people.  As with the LaLanne family, there are too many variables that could effect the same outcome.

The AREDS II study will be completed in a few years.  It is a large study designed to determine if certain supplements such as lutein and omega 3 fatty acids are beneficial to our health and sight.

For now, you have to make your own choices based upon little credible evidence.  Read carefully, there is lots of misleading stuff out there.  As with Mr. LaLanne, don’t get swayed by emotion.  Your doctors can give you some guidance, but look for proof.

In the end, you have you have to make up your own mind.  For me, I do believe diet and exercise are beneficial and will only help you maximize your genetic potential.

Enhanced by Zemanta
  • teresa weber
    Posted at 19:20h, 26 January Reply

    Love this info!

  • Elena
    Posted at 11:08h, 04 October Reply

    Thanks for writing this article.
    I tend to agree with your judgement that healthy diet and exercise can help one maximize their genetic potential.
    I belong in a group of people who presented an out of the blue RD. That is, no one in my family had it. My parents -both over 70y.o.- enjoy a good eyesight. My siblings the same. One of my siblings is twice as myopic as me and yet she did not have RD (we’re 1 year apart, so no age difference here).
    So it would seem there is no genetic predisposition for RD in my case. And yet it happened. (I am not into boxing, I didn’t lift a heavier than usual weight, it was just another day doing my usual routine.)
    So, I want to believe that in my case, my genes are good. And that healthy diet and exercise can help me. I have started taking daily omega3 supplement and lutein just to add to my diet. Hoping for the best.

    • Randall V. Wong, M.D.
      Posted at 19:03h, 14 October Reply

      Dear Elena,

      Not sure there is a true genetic component to retinal detachments. While there are few syndromes which are clearly genetic and do predispose these families to retinal detachments, I don’t feel you fall into this category.

      I wouldn’t dissect this too much, it may drive you crazy!

      Thanks so much for your participation! It’s so valuable to other readers!


  • Elena
    Posted at 01:12h, 15 October Reply


    You are so right! I am probably dissecting this too much but that’s who I am I guess. 😀
    It is a mystery why it happened in my case (since it was not genetic or brought by an accident) and maybe others feel similarly.

    But if there was no genetic predisposition (as you would say at least in my case), then there is no guarantee that the retina is “diseased”, right? I mean, it seems people (doctors) believe that if you had RD once, it will happen again. But it doesn’t have to be the case if your retina is re-attached (after surgery) and is healthy otherwise (as it happens in once-off “freak accidents”/incidences like mine).

    Would you agree with this statement?

    Thanks a lot for taking my questions. I’d be very happy if our exchanges are of help to others as well.

Post A Comment