Meet Mark

Let me introduce myself. My name is Mark Sisson. I’m 63 years young. I live and work in Malibu, California. In a past life I was a professional marathoner and triathlete. Now my life goal is to help 100 million people get healthy. I started this blog in 2006 to empower people to take full responsibility for their own health and enjoyment of life by investigating, discussing, and critically rethinking everything we’ve assumed to be true about health and wellness...

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The views expressed on this site are my opinions. My words or any contributions from my staff should not be taken as a substitute for qualified medical expertise.

While I’m a “health guy” with a biology degree and many years of fitness, health and nutrition experience to my credit, my views are just that – my views. I hope you’ll find the blog to be helpful, challenging, engaging and compelling.

If you wish to reprint/republish a post, please contact me first.

Declaration of bias: I own a successful nutritional supplement company,, which I founded in 1996, and I am very much in favor of prudent supplementation. (My line is small. No endless array of worthless herbal products and weight loss gimmicks). I earn a living from the sales of the products advertised on this website.

Affiliate link disclosure: I use affiliate links on Mark’s Daily Apple. This means that in some cases when I link to or some other online retailer I get a commission for referred sales. Meaning, if you click one of these affiliate links and make a purchase the retailer gives me a cut of it. For what it’s worth, I never write articles and insert affiliate links for the sole reason of earning a commission. If I link to an online retailer it’s because I legitimately believe their product can benefit readers. And if I earn a few buck in the process all the better. Earned commissions go toward supporting this site. So, while not all outbound product links are affiliate links go ahead and assume that they are.

Comment Board Policy

1. Imagine you’re George Clooney. Take a moment to admire your grooming and wit. Okay, now imagine someone walks up to you and asks, “What’s your name?” You say, “I’m George Clooney.” Or maybe you say, “I’m the Clooninator!” You don’t say “I’m George of George Clooney Sells Movies Blog” and you certainly don’t say, “I’m Clooney Weight Loss Plan”. So while spam is technically meat, it ain’t anywhere near Primal. Please nickname yourself something your friends would call you.

2. I reserve the right to edit and delete any comments for any reason.

3. Please play nice. I’m all for a good, heated debate, but if you resort to ad hominem attacks or profanity you will be deleted and banned.

4. I do my best to answer any and all comments and emails from readers, but the site and Primal Blueprint movement has grown to the point where this isn’t a practical possibility. Keep sending me your questions but know that if the blog post is more than 30 days old I probably won’t be answering any new comment questions.

Privacy Policy

Mark’s Daily Apple believes that your privacy is very important. Read the following to learn all about our privacy policy.

Our policy applies to all personal information given and received, including all information from your past use of any of our products and services. We define personal information as anything that would identify you: your address, your phone and email contact information, your name, your preferences, and other information that is not generally available to the public. Of course, this policy applies to Mark’s Daily Apple and no other companies or entities.

Mark’s Daily Apple does gather personal information about you when you register, use any of our products and services, or visit any of our pages or pages of our partners. We may combine information about you with information from other associates and partners.

When you become a member, we may request and collect information about you such as your name, contact information, birth date, gender, location, occupation, and preferences. For purchases and some services we may ask for relevant financial information. Once you join, we know you – you are not anonymous. We collect information about your interactions with us and our partners. We do this automatically. Also, your browser gives us your IP address and cookie information.

As you browse, advertising cookies will be placed on your computer so that we can understand what you are interested in. Our display advertising partner, AdRoll, then enables us to present you with retargeting advertising on other sites based on your previous interaction with The techniques our partners employ do not collect personal information such as your name, email address, postal address or telephone number.  You can visit this page to opt out of AdRoll and their partners’ targeted advertising.

What we do with this information: We do this to personalize your experience – nothing more, nothing less. This information allows us to fulfill your requests for our products and services, talk to you, improve our service to you, and provide strictly anonymous reporting to other clients.

Children under 13 must have a parent or guardian approve registry with Mark’s Daily Apple. We will not contact children under 13 for personal information, sales promotions, or marketing purposes.

We don’t rent, sell, give or share any of your personal information unless it’s to provide a service or product you request or is regulated by confidential requirements. We value our relationship with you and we value your privacy. Your information is never made available without your explicit consent.

Mark’s Daily Apple may need to set a cookie on your computer. Other companies that are not affiliated with Mark’s Daily Apple do not have access to our cookies.

You can edit your profile, preferences and settings at any time.

We reserve the right to talk to you about matters related to your use of products and services associated with Mark’s Daily Apple, including but not limited to announcements, service and administrative updates, and health information.

You are always free to terminate your membership with Mark’s Daily Apple.

We provide complete physical, electronic and procedural security steps that comply with all federal government regulations in order to protect your information. We do not share your information with employees without their demonstrated, reasonable need to access your information in order to perform their jobs related to providing you with products and services that you request.

From time to time, we may modify our policy. We will always inform you of any changes by contacting you via the email address you have given us.

If you have any questions, please feel free to ask us by shooting us a line using the contact form.

Views expressed on this website are just that – views. Opinions and information presented on this site are not intended to replace the advice of your primary health care provider. Please enjoy responsibly!

Pictures, images, graphics, and whatnot: All graphics and images are property of Mark’s Daily Apple unless otherwise noted. We always try to give credit where credit is due (thanks to all our Flickr pals!). If you find a picture on our site and you’d rather it not be here (because you own it, not because you think it’s ugly), just let us know and we’ll be happy to do a switcheroo.

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