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 program is an intense, 30-day dietary detox that requires you to hyper-focus on whole, minimally-processed, easy-to-digest foods. Notably, you can't have sugar, alcohol, grains, beans, soy, dairy, processed snack foods, or additives (or “healthified” versions of processed snack foods) on the plan.

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 a con 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? ›

Whole30 has gained a reputation as an effective program for weight loss and overall health improvement. 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.

What diet is closest to Whole30? ›

The Whole30 and paleo diets are similarly structured around whole foods and offer comparable benefits, including weight loss. That said, they may also limit your nutrient intake and be difficult to sustain.

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.

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 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.

Is it normal to poop a lot on Whole30? ›

Whole30. If you're used to eating a traditional low-fiber American diet—meaning not many fruits, veggies, and whole grains and lots of sugar and processed carbs—switching to this veggie-heavy diet may trigger diarrhea, Upton said.

What is banned on Whole30? ›

On Whole30, you can eat meat, vegetables, fruit, tree nuts and seeds, and healthy fats. However, you must avoid sugar, grains, legumes, dairy, alcohol, and processed food additives. Although it would be difficult and very restrictive to maintain long term, the Whole30 is designed to be done only for 30 days.

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.

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.

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