Dietitian’s Costco Grocery List for 20lb Weight Loss & Maintenance 2026

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Dietitian’s Weekly Grocery Hacks for Sustainable Weight Loss

Building sustainable habits, like a consistent weekly grocery shop and strategic ingredient prepping, can be key to achieving and maintaining weight loss. Hailey Gorski, a registered dietitian, demonstrates this through her own experience losing 20 pounds in 2016 and keeping it off.

The Power of a Sunday Grocery Run

Gorski prioritizes a weekly grocery shopping trip, typically on Sundays, to stock her kitchen with the essentials for nutritious meals. Her approach focuses on proteins, fresh produce, healthy fats, and high-fiber carbohydrates.

Gorski’s Weekly Grocery List

  • Proteins: Greek yogurt, cottage cheese, hummus or tzatziki, turkey slices, ground beef, rotisserie chicken
  • Produce: Arugula, spinach, frozen berries, mushrooms, broccoli, red onion, asparagus
  • Fiber: Chia seeds, high-fiber pasta, high-fiber wraps

Ingredient Prepping for Easy Meals

Although Gorski doesn’t engage in full meal prepping, she focuses on “ingredient prepping” to streamline meal creation. A key component is roasting a medley of vegetables – such as broccoli, asparagus, and mushrooms – with avocado oil, salt, pepper, garlic powder, and onion powder. These roasted vegetables are then readily available to add to salads, wraps, or pasta sauces throughout the week.

Strategic Storage for Success

To minimize barriers to healthy eating, Gorski emphasizes visible storage. Placing prepped ingredients in clear containers in the fridge or pantry encourages their use. She similarly pre-cuts vegetables like celery, cucumber, and carrots for easy snacking with a high-protein dip like cottage cheese.

Default Meals for Decision Fatigue

Gorski advocates for establishing “default meals” – go-to recipes that require minimal thought or effort. This strategy helps prevent decision fatigue and reduces the likelihood of opting for less healthy, convenient foods. She emphasizes the importance of having these default meals for clients as well.

Costco as a Resource

Gorski frequently shops at Costco to take advantage of bulk purchases of her staple ingredients, making healthy eating more affordable, and accessible.

This approach to grocery shopping and meal preparation emphasizes sustainability and ease, making it more likely to be maintained over the long term.

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