What Is the Whole30 Diet? (2024)

If you’re looking to start a diet plan, you may have heard of the Whole30 diet. It’s a 30-day challenge to stop eating unhealthy foods. It’s a restrictive plan that encourages mindful eating.Talk to your doctor before you try it to make sure it’s safe for you.

How Does the Whole30 Diet Work?

When you start the Whole30 diet, there's a set of rules and recommendations to follow. The goal is to help you stop eating foods that might be allergens or cause inflammation in your body. Unlike other diets, you’ll be looking more at whole foods and where they came from instead of their calories.

When you start this diet, you won’t be able to eat a lot of different foods, which means you might have to cut out some of your favorites. The diet recommends you avoid grains, dairy, sugar, most legumes, and alcohol.

Once you’ve cut out these items for 30 days, you can start having them again. This diet is supposed to give your body a reset. That way, you can pay attention to symptoms or reactions you might have to certain foods.

This diet may work if you’re struggling with poor gut health or irregular bowel problems. It has also helped people lose weight, among other benefits.

The Whole30 diet is meant to jumpstart your body on a healthier path. The focus on fruits and vegetables has been linked to less obesity and heart disease.

Recommended Foods

Since the Whole30 diet is restrictive, there are some things you're allowed to eat and some you should avoid.

Foods you’ll eat while on the Whole30 diet include:

  • Meat
  • Seafood
  • Eggs
  • Vegetables
  • Fruits
  • Juices
  • Some legumes, like green beans, sugar snap peas, and snow peas

When buying foods for your 30-day challenge, you should pay attention to where the food is coming from. The diet recommends buying organic and free-range foods when available. You won’t be able to use frozen or canned versions.

Foods that you’ll need to avoid on the Whole30 diet include:

  • Dairy
  • Grains
  • Junk foods
  • Sodas or other drinks with refined sugar in them
  • Foods with added sugars
  • Baked goods and dessert

You’ll need to pay attention to the ingredients of your foods. Buying pre-made foods isn’t recommended. That’s due to the processed ingredients found in most of these meals.

Sticking to the Diet

Since the Whole30 diet is more of a food challenge than a long-term change, there are some hurdles. The Whole30 diet has strict rules. The overall goal is to restrict your eating. So, if you “cheat” on a day of your challenge, they recommend you start again from day one.

You’re supposed to be breaking food habits and cravings. But that can be tough to do on your first try. Just because the diet’s rules are restrictive doesn’t mean you should be hard on yourself.

Don’t look at the diet as a one-time challenge, but more of a lifestyle change. That way, you’ll be able to take it easy on yourself if you give in to your cravings.

This mindset might also prevent you from having too much of your favorite non-Whole30 foods once the 30 days are up. There are benefits to restricting and reintroducing foods to your body. But you shouldn’t look at the diet as a failure if you don’t get through the entire 30 days perfectly.

Who Should Avoid the Whole30 Diet?

When you restrict foods from your diet, you lose important nutrients. The Whole30 diet isn’t the best option for everyone. Before you try it, ask your doctor if it’s right for you.

Avoid it if you have a history of eating disorders. There’s a very controlling goal behind this diet, which might not be good for your mental or physical health.

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 calciumand vitamin D.

The Whole30 diet could make your blood sugar levels fluctuate. It can also cause inflammation in your gut, and hurt your health. If you have diabetes or irritable bowel syndrome, you might want to avoid the Whole30 diet.

How Does the Paleo Diet Compare?

The paleo diet also focuses on cutting out processed foods, grains, and legumes.

The Whole30 diet is meant to help you get to the paleo diet. It doesn’t want you to reintroduce all the processed foods, grains, and legumes you used to eat. Instead, during this phase, you should try to limit the three foods.

The difference between the two diets is that Whole30 wants you to see how the foods you used to eat make you feel after the 30 days are up. If they make you feel bad, you might continue to cut them out. That could lead to you adopting the paleo diet.

What Is the Whole30 Diet? (2024)

FAQs

Is there scientific evidence for Whole30? ›

You likely won't see any long-term health benefits from dieting for 30 days. Many people gain back weight they've lost during the 30-day period as they return to their normal eating habits. In addition, there is no evidence-based research to support any of the health claims made by the Whole30 diet.

What is Whole30 diet summary? ›

The Whole30 diet is a strict 30-day elimination diet that many people turn to for weight loss or help with digestive concerns. The program encourages you to cut out alcohol, sugar, grains, legumes, dairy, and additives from your diet for 30 days. It is advertised as a total lifestyle change, rather than a simple diet.

What do doctors say about 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. The Whole30 diet could make your blood sugar levels fluctuate. It can also cause inflammation in your gut, and hurt your health.

What is the success rate of the Whole30? ›

We've proven the program truly can reset your health, habits, and relationship with food, and the vast majority (88%, according to a 2016 survey of nearly 8,000 Whole30'ers) report the Whole30 really did change their life as promised. But like anything, the Whole30 isn't perfect.

What are the criticism 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.

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.

Do you actually lose weight on Whole30? ›

Many individuals have reported successful weight loss outcomes while following the Whole30 guidelines. One key aspect of the Whole30 program is the elimination of processed foods and added sugars. By removing these from your diet, you are reducing your intake of “empty calories” and highly processed ingredients.

Are potatoes whole 30? ›

Are Potatoes Whole30? Yes! As of January 2021, all varieties of potatoes are included in the Whole30 diet. Yet, the catch is that fries and chips are not included in the diet as they are not considered to be “real” or whole foods.

What are the risks of the Whole30 diet? ›

Potential for constipation: The Whole30 Diet calls for completely cutting out grains, including whole grains and most legumes, which “could potentially cause constipation,” says Dr. Jampolis. Additionally, you won't be getting all of the other health-protective plant benefits offered by those whole grains and legumes.

What are the don'ts on the Whole30 diet? ›

To accurately identify any specific food sensitivities, you must commit to the complete elimination of these groups for 30 straight days.
  • Added sugar (real or artificial) ...
  • Alcohol (wine, beer, cider, liquor, etc.) ...
  • Grains (wheat, oats, rice, corn, quinoa, etc.) ...
  • Legumes (beans, lentils, soy, and peanuts)

What foods are banned on the Whole30 diet? ›

For 30 days, say goodbye to grains, legumes (including soy and peanuts), dairy products, added sugars (including artificial sweeteners and natural sweeteners like honey or maple syrup), alcohol, and any processed foods or additives.

How long can you stay on the Whole30 diet? ›

Finally, don't just take our word for it—believe in the hundreds of medical professionals (including Dr. Matt Mechtenberg) who say the Whole30 is both safe and healthy, even beyond the initial 30-day period. So in summary, yes, you could do the Whole30 every day for the rest of your life. But we don't think you should.

What is the one bite rule on Whole30? ›

Here's the rule in a nutshell: If you think your less healthy treat is going to be so delicious, so incredible, so worth it, and then you take your first bite and discover it's not… STOP EATING.

Has anyone gained weight on Whole30? ›

Many people will lose weight on a diet like Whole30, but weight loss isn't the only goal. The diet can also help if you are at risk for diabetes, and help with conditions such as irritable bowel syndrome. But after a 30-day wonder diet like Whole30, it's likely weight will return if you don't follow a few rules.

Is almond milk allowed on Whole30? ›

It's got only four ingredients: water, organic almonds, organic acacia gum, and sea salt. You've seen this in literally every grocery store, and now you know: Yes, you can drink it while doing Whole30. Silk's unsweetened vanilla carton is fair game, too.

Why is Whole30 not sustainable? ›

It's not sustainable

You need to be in a calorie deficit to lose weight and the restrictive nature of Whole30 means this is likely to happen, however it is not sustainable in the long term, and unless the healthy changes you make on this diet become a habit, you may put the weight back on.

Is Whole30 considered clean eating? ›

The foods you are encouraged and allowed to eat during the 30 day program are all whole, real foods. So, the Whole30 program also fits with clean eating principles. It is just also more strict in that it eliminates many additional foods.

Do you go into ketosis on Whole30? ›

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.

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