Nutrition Sources To Be Wary Of

It's a challenge knowing what nutrition news to believe on the internet. So, if you have a burning nutrition or health question you can now find reliable answers using my evidence-based search engine. Check it out below.

The internet is a cesspool of contradictory nutrition advice. Some of this terrible information is delivered in such a way that makes it seem legitimate and can fool even the most intelligent among us. I created this guide as a resource to help cut through the hype you see in media headlines and on your Facebook feed. If you see an article/book/talk/product from one of the sources below please proceed with caution as it may be a load of rubbish (especially if it's from The Food Babe). 

To land a spot on this list, a significant portion of the dietary information provided by the source must be scientifically erroneous or misleading. Some of these sources fall into the category of "quacks, frauds, and charlatans" and while others produce content of variable quality and are in the "questionable" category. The common pitfalls I've seen in these sources can be grouped into these general categories:

  1. Cherry-picking sources that agree with their beliefs while ignoring those that don't (i.e., not interpreting data within the full context of what is known about a given topic).

  2. Unevenly evaluating evidence (i.e., praising low-quality studies that support their position while discrediting higher-quality studies that refute it).

  3. Over-extrapolating study results (i.e., stating that findings from an animal trial apply directly to humans).

  4. Citing invalid or uncredible sources.

Overall, the theme of this list are those who have consistently misconstrued one or more aspects of nutritional science. In my opinion, the sources below meet one or more of these criteria. 

Some of you are bound to see people on here that you consider to be good resources or may even like. Their appearance on this list does not mean everything they have ever published is erroneous, simply that they have also published too much unsound material to be considered a general reliable nutrition information source as defined in my Good Nutrition Sources post.

How to Fact Check a Source

By no means is this a comprehensive list as new dubious sources pop up frequently. If you are attempting to determine the reliability of a source that is not listed, here are a few options to try. Try taking the name of the person or organization in question and search it in Alternatively, try searching the terms in Google followed by one of these phrases/words: “debunked”, “critique”, “fact check”, “quack”, or “fraud”. You may be able to get some useful articles using this second method. Don’t be afraid to try and find out if they have any reliable credentials as well. Do they have relevant degrees or respected certifications in the field of nutrition such as those listed on the Good Sources page? If not, you may want to view what they’re saying with some skepticism until you can confirm it with a more reliable source. 

For a list of reliable nutrition sources you can use, head on over to this page or try using the search engine. This list is fluid and will be edited as new unreliable sources emerge. If you have one you think should be on here, drop it in the comments section. 

Note: I don’t link directly to any of these sources. Instead, I’ve linked to resources demonstrating why they are on this list. 


If there’s one thing gurus love to do, it’s to write multiple diet and health books. Far too many to list here - so please don’t waste your money on diet books written by the people listed above. Here is a brief list of popular diet books to skip.

21 Day Sugar Detox - Diane Sanfilippo
Always Hungry - David Ludwig
Cholesterol Clarity - Jimmy Moore
Dr. Atkins Diet Revolution - Robert Atkins
Dr. Kellyann's Bone Broth Diet - Kellyann Petrucci
Eat Bacon, Don't Jog: Get Strong, Get Lean, No Bullshit - Grant Petersen
Eat Right for Your Type - Peter D'Adamo
Fat Chance - Robert Lustig
Good Calories, Bad Calories - Gary Taubes
Grain Brain - David Perlmutter
I Quit Sugar for Life - Sarah Wilson
It Starts With Food - Dallas and Melissa Hartwig
Keto Clarity - Jimmy Moore
Knockout - Suzanne Somers (and all of her other books)
Low Carb, High Fat Food Revolution - Andreas Eenfeldt
Optimum Healing - Tom O'Bryan
The 4-Hour Body - Tim Ferriss
The Big Fat Surprise - Nina Teicholz
The Bulletproof Diet - Dave Asprey
The Calorie Myth - Jonathan Bailor
The Case Against Sugar - Gary Taubes (another critique here)
The China Study - T. Colin Campbell and Thomas M. Campbell
The Food Babe Way - Vani Hari
The Genotype Diet - Peter D'Adamo
The Obesity Code - Jason Fung
The Optimum Nutrition Bible - Patrick Holford
The Paleo Solution - Robb Wolf
The Plant Paradox - Steven R. Gundry
The Real Meal Revolution - Tim Noakes and Jonno Proudfoot
The Whole30 - Dallas and Melissa Hartwig
The Wild Diet - Abel James
The ZONE Diet - Barry Sears
Wheat Belly - William Davis
Why We Get Fat - Gary Taubes

Facebook Groups

In addition to the sources above, here are some other pages not to follow (or unfollow).

Collective Evolution
Gary Taubes Fan Club
Modern Alternative Mama
Natural Cures Not Medicine
Nutrition WOD
Prevention Magazine
The Mind Unleashed


None (so far)

YouTube Channels

Any from the above-mentioned websites/organizations/people



Because the titles "nutritionist" and "nutrition consultant" are unregulated in most states, they have been adopted by many individuals who lack recognized credentials and are unqualified. In addition, a small percentage of licensed practitioners are engaged in unscientific nutrition practices. The best way to avoid bad nutrition advice is to identify and avoid those who give it. I recommend steering clear of:

  • Anyone who says that everyone needs vitamin supplements to be sure they get enough. Most people can get all the vitamins they need by eating sensibly.

  • Anyone who suggests that most diseases are caused by faulty nutrition. Although some diseases are diet-related, most are not.

  • Anyone who suggests that large doses of vitamins are effective against a large number of diseases and conditions. That is simply untrue.

  • Anyone who suggests hair analysis as a basis for determining the body's nutritional state or for recommending vitamins and minerals. Hair analysis is not reliable for this purpose.

  • Anyone who claims that a wide variety of symptoms and diseases are caused by "hidden food allergies"

  • Anyone who uses a computer-scored "nutrient deficiency test" as the basis for prescribing vitamins. There are valid ways that computers can be used for dietary analysis. But those used for recommending vitamins are programmed to recommend them for everyone.

  • Be wary of those who sells vitamins in their offices. Unscientific practitioners often do sell unneeded supplements — usually at a considerable profit.

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