I'm a dietitian sharing my top 10 high-fiber Costco finds for the Mediterranean diet.

The trend of "fibermaxxing" has taken off on TikTok, and as a dietitian, it's an approach I wholeheartedly support.

Many people in the US fall short of their daily fiber needs, and the aim of fibermaxxing is to meet or exceed these recommended levels.

Fiber is essential for a balanced diet, aiding digestion, enhancing feelings of fullness, benefiting gut health, and potentially lowering the risk of various chronic illnesses.

In my quest to boost fiber intake, I adhere to the Mediterranean diet, a flexible and nutritious dietary pattern that emphasizes whole grains and fresh produce while restricting processed foods.

Costco is a preferred spot for me to gather bulk, fiber-rich essentials that align perfectly with my dietary habits.

Here are some of my top picks that help me achieve my fiber objectives without compromising on taste or convenience.

Bulk-buy frozen riced cauliflower to elevate smoothies and grains.

Frozen riced cauliflower is an adaptable substitute for rice, low in carbs and high in fiber. Purchasing it in bulk from Costco, I enhance my smoothies with a fiber boost that's practically tasteless.

It also works wonders in grain dishes, contributing additional volume and antioxidants while being virtually indistinguishable.

Good Foods avocado mash makes sandwiches more nutritious.

Rich in fiber, avocados shine in Good Foods' ready-to-eat mash, conveniently available in bulk at Costco. Each portion offers 4 grams of dietary fiber.

I swap out mayo for this smooth mash on sandwiches, enriching my meals with heart-healthy fats and additional fiber.

Savor SunGold kiwis, skin included, for a fiber punch.

Sweet and refreshing, SunGold kiwis provide approximately 2 grams of fiber each.

Enjoy them on their own or sliced over Greek yogurt for a zesty fiber treat. The skin is thin and consumable, making them easy to eat like an apple.

Kirkland Signature dried plums are a fiber-filled snack choice.

Well-known for their high fiber content, prunes are sweet and versatile. Snack on Kirkland Signature Sunsweet dried plums directly or enhance them with nut butter for a protein-rich twist.

Blend them into smoothies or chop them into salads for extra sweetness and texture.

Opt for long-lasting frozen berry blends.

Frozen fruits, such as those in the Kirkland Signature triple-berry blend, are as nutritious as fresh ones and often more cost-effective. This mix includes raspberries, blueberries, and blackberries.

Rich in antioxidants, these berries enhance breakfast bowls, smoothies, or are simply enjoyed as a snack. They offer a sweet fiber boost without the pressure of consuming fresh fruit quickly.

Convenient Actual Veggies black-bean burgers for fiber-rich meals.

Unlike traditional beef burgers, these plant-based patties are a fiber-rich option, providing 6 grams per serving.

They are perfect for easy meal nights—just heat a patty, serve it on a whole-grain bun with veggies, avocado mash, and a side salad.

Catalina Crunch cereal: a fiber-packed breakfast or snack.

Hitting fibermaxx goals is easier with high-fiber cereals like Catalina Crunch. Despite its protein-focused marketing, it boasts 9 grams of fiber per serving, far surpassing traditional cinnamon-toast cereals.

Use it to top yogurt, mix with other cereals, or enjoy it solo for a crunchy snack.

Incorporate chia seeds into a myriad of meals.

Tiny but mighty, chia seeds offer around 10 grams of fiber per serving.

Sprinkle them on yogurt, blend into smoothies, or create chia pudding for a nutritious snack. They're also a fantastic source of omega-3s, beneficial for heart health.

Organic mushrooms enhance meals with fiber and depth.

Adding a meaty texture, mushrooms boost fiber and offer an earthy taste in various recipes, particularly in meat-centric dishes like beef tacos or Bolognese.

By replacing half the meat with mushrooms, you save costs and increase fiber, along with a dose of antioxidants.

Kodiak Power Cakes mix for fiber-rich, protein-packed breakfasts.

Fans of pancakes and waffles will appreciate the Kodiak Power Cakes mix. It delivers impressive protein and fiber levels—15 grams and 5 grams per serving, respectively.

Unlike other pancake mixes, which usually have minimal fiber, this one stands out. Top with chia seeds and berries for an extra fiber boost.