---
title: "13 Knows Quotes By Jack LaLanne"
description: "13 Knows quotes by Jack LaLanne. Plus more from Jack LaLanne and more Knows sayings from other authors."
image: "https://sms4smile.com/quotes/i/47b/jack-lalanne-2498_body_what-the-hell-do-doctors-know-about-exer_2457396.png"
---

> [What the hell do doctors know about exercise? Most of them know zero. You gotta push elderly people to failure like anybody…](https://sms4smile.com/quotes/jack-lalanne/what-the-hell-do-doctors-know-about-exercise-most-of-them-know-zero/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

[Image](https://sms4smile.com/quotes/i/47b/jack-lalanne-2498_body_what-the-hell-do-doctors-know-about-exer_2457396.png)

> [ Be an example of what you teach. \[As a personal trainer\], delve into your student's life, know everything about him. Be interested. ](https://sms4smile.com/quotes/jack-lalanne/be-an-example-of-what-you-teach-as-a-personal-trainer-delve-into-your/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

[Image](https://sms4smile.com/quotes/i/bff/jack-lalanne-2498_education_be-an-example-of-what-you-teach-as-a-per_2751846.png)

> [The spine is the lifeline. A lot of people should go to a chiropractor but they don't know it.](https://sms4smile.com/quotes/jack-lalanne/the-spine-is-the-lifeline-a-lot-of-people-should-go-to-a-chiropractor/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

[Image](https://sms4smile.com/quotes/i/ae1/jack-lalanne-2498_chiropractic_the-spine-is-the-lifeline-a-lot-of-peopl_2060717.png)

> [I don't think about wealth. I get one thing in my mind, "How can I help people...come on humans...do something, you know.…](https://sms4smile.com/quotes/jack-lalanne/i-don-t-think-about-wealth-i-get-one-thing-in-my-mind-how-can-i-help/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

[Image](https://sms4smile.com/quotes/i/d1b/jack-lalanne-2498_alive_i-don-t-think-about-wealth-i-get-one-thi_2108262.png)

> [Your muscles know nothing. It's your brain. Exercise is something you've got to do the rest of your life. It's a lifestyle.…](https://sms4smile.com/quotes/jack-lalanne/your-muscles-know-nothing-it-s-your-brain-exercise-is-something-you/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

[Image](https://sms4smile.com/quotes/i/a29/jack-lalanne-2498_brain_your-muscles-know-nothing-it-s-your-brai_534835.png)

> [Ask the guys who are doing serious triathlons if there are any limits to what can be done. The limit is right…](https://sms4smile.com/quotes/jack-lalanne/ask-the-guys-who-are-doing-serious-triathlons-if-there-are-any-limits/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

[Image](https://sms4smile.com/quotes/i/1a6/jack-lalanne-2498_asks_ask-the-guys-who-are-doing-serious-triat_1721975.png)

> [I believe so strongly in what I do and I practice what I preach! My Dad died at fifty - do I…](https://sms4smile.com/quotes/jack-lalanne/i-believe-so-strongly-in-what-i-do-and-i-practice-what-i-preach-my/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

[Image](https://sms4smile.com/quotes/i/7f7/jack-lalanne-2498_believe_i-believe-so-strongly-in-what-i-do-and-i_1328594.png)

> [We know today about nutrition and we know about exercise. There's no reason for anybody to be sick and tired, fat and…](https://sms4smile.com/quotes/jack-lalanne/we-know-today-about-nutrition-and-we-know-about-exercise-there-s-no/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

[Image](https://sms4smile.com/quotes/i/762/jack-lalanne-2498_body_we-know-today-about-nutrition-and-we-kno_452266.jpg)

> [Thoughts are things. Negativity is what kills you... It's tough to do, but you've got to work at living, you know? Most…](https://sms4smile.com/quotes/jack-lalanne/thoughts-are-things-negativity-is-what-kills-you-it-s-tough-to-do-but/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

[Image](https://sms4smile.com/quotes/i/288/jack-lalanne-2498_adversity_thoughts-are-things-negativity-is-what-k_46467.png)

> [I train like I'm training for the Olympics or for a Mr. America contest, the way I've always trained my whole life.…](https://sms4smile.com/quotes/jack-lalanne/i-train-like-i-m-training-for-the-olympics-or-for-a-mr-america/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

[Image](https://sms4smile.com/quotes/i/cf7/jack-lalanne-2498_america_i-train-like-i-m-training-for-the-olympi_1458620.png)

> [People don't realize how much of this stuff you get by the end of the day. High blood pressure is from all…](https://sms4smile.com/quotes/jack-lalanne/people-don-t-realize-how-much-of-this-stuff-you-get-by-the-end-of-the/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

[Image](https://sms4smile.com/quotes/i/1d8/jack-lalanne-2498_american-diet_people-don-t-realize-how-much-of-this-st_566705.jpg)

> [It's a bunch of bull! If God, or nature, or whatever you want to call it didn't want you to mix carbohydrates,…](https://sms4smile.com/quotes/jack-lalanne/it-s-a-bunch-of-bull-if-god-or-nature-or-whatever-you-want-to-call-it/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

[Image](https://sms4smile.com/quotes/i/862/jack-lalanne-2498_book_it-s-a-bunch-of-bull-if-god-or-nature-or_2002033.png)

> [How do you know what's really organic? Today, there's all these impurities in the water and the air. The water for the…](https://sms4smile.com/quotes/jack-lalanne/how-do-you-know-what-s-really-organic-today-there-s-all-these/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

[Image](https://sms4smile.com/quotes/i/ddd/jack-lalanne-2498_air_how-do-you-know-what-s-really-organic-to_659403.png)

## Other authors on Knows

## More by Jack LaLanne

> [You've got to exercise. Your health account, your bank account, they're the same thing. The more you put in, the more you can take…](https://sms4smile.com/quotes/jack-lalanne/you-ve-got-to-exercise-your-health-account-your-bank-account-they-re/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

> [Forget about what you used to do. Don't make those same mistakes again. Everybody says, "Oh the good old days" - the good old…](https://sms4smile.com/quotes/jack-lalanne/forget-about-what-you-used-to-do-don-t-make-those-same-mistakes-again/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

> [Thoughts are things. Negativity is what kills you... It's tough to do, but you've got to work at living, you know? Most people work…](https://sms4smile.com/quotes/jack-lalanne/thoughts-are-things-negativity-is-what-kills-you-it-s-tough-to-do-but/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

> [The only way you can hurt your body is if you don't use it](https://sms4smile.com/quotes/jack-lalanne/the-only-way-you-can-hurt-your-body-is-if-you-don-t-use-it/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

> [There are so many health food nuts out there that eat nothing but natural foods but they don't exercise and they look terrible.](https://sms4smile.com/quotes/jack-lalanne/there-are-so-many-health-food-nuts-out-there-that-eat-nothing-but/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

> [Anything in life is possible, if you make it happen.](https://sms4smile.com/quotes/jack-lalanne/anything-in-life-is-possible-if-you-make-it-happen/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

> [The brain's preferred source of fuel is glucose/carbohydrates. And when you go on a low-carb/high-protein diet, your brain is using low-octane fuel. You'll be…](https://sms4smile.com/quotes/jack-lalanne/the-brain-s-preferred-source-of-fuel-is-glucose-carbohydrates-and/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

> [You can't separate the mind and body. It's impossible.](https://sms4smile.com/quotes/jack-lalanne/you-can-t-separate-the-mind-and-body-it-s-impossible/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

> [What you need to do is get that tape measure out, and start measuring that gut. Then you start working out and you start…](https://sms4smile.com/quotes/jack-lalanne/what-you-need-to-do-is-get-that-tape-measure-out-and-start-measuring/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

> [The most important thing in your life is your health and your body. You can have all the education and you can have millions…](https://sms4smile.com/quotes/jack-lalanne/the-most-important-thing-in-your-life-is-your-health-and-your-body/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

> [I only eat fish - no chicken, no turkey, just fish. I get all my protein from fish and egg whites.](https://sms4smile.com/quotes/jack-lalanne/i-only-eat-fish-no-chicken-no-turkey-just-fish-i-get-all-my-protein/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

> [That is the beautiful part about weights: even if you are 100 year old, you can lift something. Maybe it's only a half a…](https://sms4smile.com/quotes/jack-lalanne/that-is-the-beautiful-part-about-weights-even-if-you-are-100-year-old/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

> [I was going to be a singer. If I hadn't been in my profession, I was going to be an Opera singer. That's from…](https://sms4smile.com/quotes/jack-lalanne/i-was-going-to-be-a-singer-if-i-hadn-t-been-in-my-profession-i-was/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

> [Be young. Keep yourself young by having a good, sporty car like a Corvette. It keeps you on your toes. It keeps you young.…](https://sms4smile.com/quotes/jack-lalanne/be-young-keep-yourself-young-by-having-a-good-sporty-car-like-a/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

> [There is no fountain of youth, What you put into your body is what you get out of it. You would not feed your…](https://sms4smile.com/quotes/jack-lalanne/there-is-no-fountain-of-youth-what-you-put-into-your-body-is-what-you/)

[Jack LaLanne](https://sms4smile.com/quotes/author/jack-lalanne/)

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                        "text": "I believe so strongly in what I do and I practice what I preach! My Dad died at fifty - do I have to die at fifty? My Dad ate all the junk food, he wouldn't exercise - how can you tell your Dad anything? We know about nutrition and we know about exercise. There's no reason for anybody to be sick and tired, fat and out of shape - it's ridiculous!",
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                        "text": "We know today about nutrition and we know about exercise. There's no reason for anybody to be sick and tired, fat and out of shape -- it's ridiculous! This has got to be taught in the schools. It's got to be taught in kindergarten. That's when kids should first get the idea that the most important thing in your life is your health and your body.",
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                        "text": "Thoughts are things. Negativity is what kills you... It's tough to do, but you've got to work at living, you know? Most people work at dying, but anybody can die; the easiest thing on this earth is to die. But to live takes guts; it takes energy, vitality, it takes thought. . . . We have so many negative influences out there that are pulling us down. . . . You've got to be strong to overcome these adversities . . . that's why I never stop.",
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                        "text": "I train like I'm training for the Olympics or for a Mr. America contest, the way I've always trained my whole life. You see, life is a battlefield. Life is survival of the fittest... How many healthy people do you know? How many happy people do you know? Think about it. People work at dying, they don't work at living. My workout is my obligation to life. It's my tranquilizer. It's part of the way I tell the truth--and telling the truth is what's kept me going all these years.",
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                        "text": "People don't realize how much of this stuff you get by the end of the day. High blood pressure is from all this high-fat eating. Do you know how many calories are in butter and cheese and ice cream? Would you get your dog up in the morning for a cup of coffee and a donut? Probably millions of Americans got up this morning with a cup of coffee, a cigarette and a donut. No wonder they are sick and fouled up.",
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                        "text": "It's a bunch of bull! If God, or nature, or whatever you want to call it didn't want you to mix carbohydrates, starches and fats, you'd never have a grain, you'd never have a vegetable or a fruit, would you? What's in a grain? It's got carbohydrates, starches, fats, sugar. It's got everything in it. Why does nature do that? One guy says don't mix carbohydrates, and the other guy says don't mix protein with it; it's all a bunch of lard, something to sell a book. And the poor public is so confused, they don't know what to do.",
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                        "text": "How do you know what's really organic? Today, there's all these impurities in the water and the air. The water for the fruits and vegetables has junk in it. If you get enough vitamins and minerals out of normal food and whole grains, and you get enough proteins and exercise (that's the key) then nature builds up a tolerance to all of these things. It's survival of the fittest. You can't have everything perfect, that's impossible, but the fit survive.",
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