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What Counts for 30 Plants? A Guide to Boosting Your Gut Health

4 min read

According to the American Gut Project, participants who ate 30 or more different types of plants per week had the most diverse and healthy gut microbiomes. This finding sparked the popular dietary goal, but many wonder exactly what counts toward that magic number.

Quick Summary

This guide explains the '30 plants a week' dietary goal, clarifying which foods contribute, including fruits, vegetables, whole grains, and herbs. It explores the gut health benefits associated with a diverse plant intake and offers practical strategies for incorporating more variety into your meals.

Key Points

  • Variety is Key: The '30 plants a week' goal emphasizes consuming a diversity of plant foods, not just quantity, for optimal gut health.

  • Diverse Food Groups Count: The total includes fruits, vegetables, whole grains, legumes, nuts, seeds, herbs, and spices.

  • Different Colors are Different Points: Different colored bell peppers or types of tomatoes can be counted as separate plants.

  • Extras Add Up: Items like coffee, tea, extra virgin olive oil, and dark chocolate also contribute small fractions of points.

  • Think Incrementally: Achieve the goal by making small additions throughout the week, such as adding mixed nuts to a snack or using more spices in cooking.

  • Research-Backed Approach: The concept is supported by findings from the American Gut Project, which showed a link between dietary diversity and gut microbiome diversity.

In This Article

Understanding the '30 Plants' Goal

The concept of eating 30 different plants each week emerged from groundbreaking research into the human gut microbiome. The study revealed that a wider variety of plant-based foods correlated with a more diverse range of gut microbes, which are essential for overall health, digestion, and immunity. The goal isn't just about volume, but about consuming a wide spectrum of plant compounds, like polyphenols and fibers, that feed different beneficial bacteria in your gut. Achieving this target doesn't mean becoming vegetarian or vegan, but rather focusing on adding variety to your existing diet. You'll quickly find that many common pantry staples and seasonings contribute to your weekly tally.

What Exactly Counts as a 'Plant Point'?

Not all plant-based foods are counted equally, and some widely available options are surprisingly part of the list. Here’s a detailed breakdown of what contributes to your weekly 30:

  • Fruits and Vegetables (1 point each): Different types of fruits and vegetables are the foundation of this goal. Notably, different colors of the same vegetable often count as separate points. For example, red, green, and yellow bell peppers can contribute three separate points. Similarly, different types of tomatoes, such as cherry versus beefsteak, count as distinct plants. This category includes fresh, frozen, and tinned varieties, making it accessible year-round. Even seemingly savory options like avocado and olives count.
  • Whole Grains (1 point each): It’s crucial to choose whole grains over refined ones, as the processing of white flour or white rice strips them of vital fiber. Whole grain varieties like oats, brown rice, quinoa, and barley all count as individual points. Choosing whole grain bread or pasta is an easy swap to add a point.
  • Legumes (1 point each): This includes all types of beans, lentils, and peas, whether dried, canned, or fresh. A mixed bean salad or a hearty lentil soup can quickly add several points to your count. Examples include chickpeas, kidney beans, black beans, and edamame.
  • Nuts and Seeds (1 point each): Incorporating a variety of nuts and seeds is a simple way to increase your plant diversity. A handful of mixed nuts or a sprinkle of mixed seeds on your breakfast provides multiple points in a single serving. Examples include almonds, walnuts, chia seeds, and pumpkin seeds.
  • Herbs and Spices (¼ point each): Due to the smaller quantities consumed, each unique herb or spice contributes a quarter of a point. This means that seasoning a meal with basil, oregano, thyme, and black pepper adds a full point. Both fresh and dried versions count, so your spice rack is an excellent resource for boosting your weekly score.
  • Plant-Based 'Extras' (¼ point each): Even some everyday indulgences and staples add points. Coffee, tea, and extra virgin olive oil each count for a quarter of a point. Minimally processed dark chocolate (70% cocoa or higher) also counts in moderation.

Practical Strategies for a Diverse Plant Diet

Reaching 30 plants may sound intimidating, but it's much more achievable than it seems. The key is to think about adding variety rather than consuming large quantities of any single plant. Here are some actionable tips:

  • Upgrade your snacks: Instead of a single fruit, opt for mixed fruit. Swap single-nut snacks for a bag of mixed nuts and seeds. These simple changes can instantly add multiple points. Try having an apple with almond butter, then a handful of walnuts later in the week.
  • Make salads and stir-fries your friend: These dishes are perfect for incorporating a wide variety of vegetables and herbs. Start with a mixed leaf base, add colorful vegetables like peppers and carrots, and top with seeds for extra crunch.
  • Boost your breakfasts: Add a variety of toppings to your morning oatmeal or yogurt. Think mixed berries, chia seeds, flax seeds, and a sprinkle of cinnamon for an easy 3-4 points. Overnight oats with mixed seeds and different fruits is another excellent option.
  • Cook in batches: Prepare a large batch of a vegetable-heavy soup or chili using a variety of beans, lentils, and canned tomatoes. This is a simple way to get multiple points in a single meal that can be enjoyed for several days.
  • Think vertically and add flavor: Herbs and spices offer a high return for a small effort. Sprinkle fresh or dried herbs on finished dishes. Marinate with a variety of spices. This is where your pantry can truly shine as a health powerhouse.
  • Remember the rainbow: Different colored fruits and vegetables often have different nutrients and plant compounds. Actively choose a colorful mix when shopping to maximize your intake. Don't forget that mushrooms and seaweeds also contribute to your plant count.

Comparison: Refined Grains vs. Whole Grains

Feature Refined Grains (White Rice, White Bread) Whole Grains (Brown Rice, Oats, Quinoa)
Plant Points 0 1 per type
Processing Stripped of bran and germ Grain remains intact
Key Nutrients Lower in fiber and nutrients High in fiber, vitamins, and minerals
Gut Health Impact Minimal, less food for gut bacteria Supports diverse gut microbiome
Usage Common in many processed foods Requires conscious choice for gut benefits

Conclusion

The '30 plants a week' challenge is not a restrictive diet but an exciting pathway to a more varied and nutritious way of eating. By understanding what counts as a 'plant point' and incorporating diverse foods from different categories—from familiar fruits and vegetables to whole grains, legumes, nuts, seeds, and even herbs and spices—you can significantly improve the diversity of your gut microbiome. This simple, research-backed strategy offers a compelling shift from counting calories to celebrating culinary variety, with significant benefits for your long-term health and well-being. So, go ahead and explore new flavors; your gut will thank you for it. For more research into the science behind gut health, explore the work of the ZOE project, which built upon the findings of the American Gut Project.

Frequently Asked Questions

The '30 plants a week' challenge is a dietary goal focusing on eating at least 30 different types of plant-based foods weekly. It's based on research linking dietary diversity to a more diverse and healthy gut microbiome.

Yes, for the purpose of the 30 plants challenge, different colors of the same vegetable, such as red, yellow, and green bell peppers, count as separate plants because they contain different plant compounds.

Each unique herb and spice counts as a quarter (¼) of a plant point due to the smaller quantities typically consumed. Using four different herbs or spices in a meal would add one full point.

Yes, whole or minimally processed frozen, tinned, and dried fruits and vegetables are all counted towards the weekly total. They are a convenient and affordable way to add variety.

For most items, portion size is not the primary factor, as the goal is dietary diversity, not volume. However, some sources suggest a minimum amount, such as a tablespoon for herbs and spices, to count.

Yes, minimally processed versions of these items count towards the total. Coffee, tea, and extra virgin olive oil count for a quarter of a point each, as does dark chocolate that is at least 70% cocoa.

Only whole grains, which have not been stripped of their fiber-rich outer layers, count. Examples include oats, brown rice, quinoa, and barley. Refined grains like white bread or white rice do not count.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.