Here's What Happened When a Doctor Tried the Whole30 Challenge (2024)

It was rough.

By Katie Dupere
Here's What Happened When a Doctor Tried the Whole30 Challenge (1)

You’ve probably heard of — or tried — the Whole30 diet. The elimination diet seriously restricts your food intake for 30 days with the goal of identifying food sensitivities and poor nutritional choices. Even with so much buzz around the diet, there is still one major thing health professionals and the general public can’t seem to agree on: Is this diet actually any good for you? Enter: Doctor Mike’s Whole30 experiment.

Doctor Mike, the internet celebrity doctor who gained popularity for his combination of smarts and good looks, recently took on the Whole30 challenge and documented the results on YouTube. His experience and professional thoughts might make you rethink the diet.

Doctor Mike is known for not endorsing elimination diets, of which Whole30 definitely is. He says in the video that they can fuel eating disorders and possibly lead to nutritional deficiencies by cutting out food that likely isn’t the cause of any problems.

Whole30 has some intense restrictive rules: no added sugar, no grains, no legumes, no dairy, no alcohol, no MSG or sulfites, and no junk food.

“I can cut out bread. That’s no problem I’ve done that before when I was gluten-sensitive in the past,” Doctor Mike says in the video. “But the fact that I had to give up brown rice, quinoa, things that I eat as part of a healthy diet…Why would you eliminate some foods like black beans that can be so healthy to the majority of people?”

The doctor is clearly not impressed — and that’s not the end of his problems with Whole30.

"Why would you eliminate some foods like black beans that can be so healthy to the majority of people?"

Doctor Mike happened to take on the challenge during Thanksgiving and the beginning of the Christmas holiday season, which made the rules even more difficult to follow. At Thanksgiving, Doctor Mike reports he could only eat turkey and peas. That’s it.

Aside from the elimination struggles, Doctor Mike also began to struggle in the gym. He says he noticed his bench starting to go down almost immediately.

“Normally when I’m working out, I’m benching 225 to 255 — 255 was becoming a huge challenge for me,” Doctor Mike says in the video. “When I stepped on to the basketball court, after one game, I felt like I was exhausted.”

Doctor Mike says this sluggish performance was probably due to underrating his usual caloric intake, which is something that just naturally happened on the diet.

“When you do an elimination diet like Whole30, it’s very easy to under eat calories,” Doctor Mike says. “This is probably why a lot of people lose weight.”

Once he hit day 30, he started to reintroduce foods to note their potential negative impacts, which is the main point of the diet. But Doctor Mike says this is one of the things he dislikes most about Whole30, saying the time frame of adding back in foods is not enough to properly track their individual impact on the body.

“It’s not really scientific,” he says. “If you put in legumes on the first day, then two days later add in sugars, then two days after that grains, it’s not scientific. If we’re doing a proper elimination challenge in the medical setting, we do a 90-day elimination.”

Doctor Mike also reports his digestive system, took a hit during Whole30, leading to bloating and dirreahea. After reintroducing foods, he reports his body returned back to normal.

Overall, Doctor Mike wasn’t impressed with Whole30, though he did admit there was something reward to following such restrictive rules successfully. While the competitive crowd might agree, the doctor says Whole30 is probably not a good idea.

“At the end of the day, nutritional advice should be individualized," he says. "It’s a very restrictive diet, and it can cause some serious problems. There’s definitely some research showing that there’s some crossover with eating disorders. Most of the time, [Whole30] is unnecessary.”

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Here's What Happened When a Doctor Tried the Whole30 Challenge (2024)

FAQs

Here's What Happened When a Doctor Tried the Whole30 Challenge? ›

After reintroducing foods, he reports his body returned back to normal. Overall, Doctor Mike wasn't impressed with Whole30, though he did admit there was something reward to following such restrictive rules successfully. While the competitive crowd might agree, the doctor says Whole30 is probably not a good idea.

What do doctors think about the Whole30 diet? ›

Since there is no clinical research on Whole30, it remains to be seen whether this diet will hold up in the long-term. Talk with your doctor before starting the Whole30 diet or any other diet — your doctor can recommend the best eating plan for you, based on your health needs.

What is the hardest day on Whole30? ›

On Days 10 and 11, you are statistically the most likely to quit your Whole30. (That's why they're “the hardest days.”)

Has anyone lost weight on Whole30? ›

That said, plenty of people who try the Whole30 diet do end up losing some weight. “The benefit of Whole30 is that it encourages eating whole foods, which are foods in their most natural state,” says Sara Haas, RDN, a nutrition expert with formal training in the culinary arts.

What are the long-term consequences of the Whole30 diet? ›

Some downsides include Whole30 side effects like digestive problems, worsened food cravings, and reduced nutrient intake. The diet restricts certain foods and food groups, which, if followed long-term, can result in nutrient deficiencies.

What is the dark side of Whole30? ›

The Whole30 diet is cutting dairy, alcohol, legumes, added sugars, and processed foods for 30 days. Potential risks include constipation and an inability to keep off weight lost while following it. The diet may also be expensive to follow, as it can involve buying a lot of meat and fresh produce.

Why do I feel so bad on Whole30? ›

The Whole30 creators even say it's normal to dream about food during the program, since you're deprived. And, most people find that they have intense cravings for sugar for weeks after the program. They feel completely out-of-control around it because they've been so deprived.

Why am I gaining weight on Whole30? ›

Although Whole30 encourages consuming whole, unprocessed foods, portion control still matters. Overeating even healthy foods can lead to a caloric surplus, hindering weight loss progress.

Does Whole30 reset your metabolism? ›

“As well, you're not supposed to weigh yourself or take any measurements during the 30 days.” The idea behind this approach is to reset your metabolism and digestive tract. According to some research studies, elimination diets like Whole30 can be an effective tool to help some people with gastrointestinal issues.

What is the one bite rule on Whole30? ›

I encourage you to read the whole post (and the experience that prompted it), but I'll summarize it here: If you get one bite into a less healthy treat and realize it's not worth it, stop eating.

What are the withdrawal symptoms of Whole30? ›

Normal. Sorry.
  • Headaches (dull)
  • Lethargy.
  • Sleepiness.
  • Crankiness.
  • Brain fog.
  • Cravings.
  • General malaise.
  • Breakouts.

Who should avoid the Whole30 diet? ›

Eating meat is a big part of this diet, so if you're a vegetarian or on a vegan diet, you might also want to avoid the Whole30 diet. It also restricts important nutrients you'd get from grains and legumes. This makes it hard for you to get the right amount of calcium and vitamin D.

Does Whole30 cause ketosis? ›

No. The Whole30 diet doesn't have a carb limit, so it's not meant to put you in ketosis. However, it tends to be lower in carbohydrates than a standard American diet (SAD) since it cuts out grains, traditional baked foods, and processed items, which are major sources of carbs.

Does Whole30 heal your gut? ›

The Whole30 is an excellent way to help heal your gut since the foundation of the program is pure whole foods. In addition, there are several gut healing foods and supplements known for their ability to improve digestive health that you may wish to consider.

Can you have coffee on Whole30? ›

Here's their official stance on coffee: “Yes, you can have your coffee. You're welcome. You can drink it black, add unsweetened compatible nutpods, coconut milk, almond milk, or add cinnamon or vanilla beans to the brew.

Why am I so tired on Whole30? ›

If your energy isn't high or steady, your workouts are dragging, or your focus is meandering, it might be you're just not eating enough. Specifically, enough carbohydrate. It's really common for people to under-eat on the Whole30, and it tends to catch up with them towards the end of the second week (or in the third).

What does Whole30 do to your body? ›

The most commonly reported benefits include: Reduced sugar cravings. Better digestion. Improved energy.

What diet is closest to Whole30? ›

The Whole 30 and Paleo Diet are very similar. The Whole 30 is more restrictive than the paleo diet. For example, no sugar is allowed in the Whole 30 but only refined sugar is cut out of the Paleo diet. The Whole 30 is meant to be consumed for 30 days, whereas the Paleo diet is designed to be a long-term diet.

Is Whole30 anti-inflammatory? ›

Well, while most plans urge us to cut calories or carbs, Whole30 simply guides us to cut inflammation. The best part: You don't have to go hungry to cut inflammation. Instead, you simply steer clear of foods that contain potential irritants, enjoying all the delicious anti-inflammatory fare you need to feel full.

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