Tuesday, January 13, 2026

9 Top Costco Foods to Support Your Weight Loss Journey This New Year

Costco’s Top Picks for Protein-Packed Weight Loss

As the New Year kicks off, many individuals are setting resolutions to lose weight and lead healthier lifestyles. For those on this journey, Costco is an excellent go-to for stocking up on groceries that are both nutritious and budget-friendly. With a plethora of fresh produce, meats, and ready-to-eat meals, the warehouse giant can help keep you on track without emptying your wallet.

Tara Collingwood, MS, RDN, CSSD, LD/N, ACSM-CPT, a board-certified sports dietitian and co-author of the Flat Belly Cookbook for Dummies, emphasizes the importance of choosing foods high in protein and fiber. She notes, “Protein keeps you full longer, reduces overeating later in the day, and preserves lean muscle during weight loss.” Additionally, fibrous foods like berries, oats, and vegetables slow digestion and help regulate blood sugar and appetite. To inspire your shopping list, here are 9 top health-conscious picks from Costco that can support your weight loss goals:

1. Kirkland Signature Organic Greek Nonfat Yogurt

This protein-rich dairy option is perfect for breakfast or as a snack. Collingwood recommends it for its ability to keep you satisfied and support muscle maintenance.

2. Safe Catch Ahi Tuna

Canned and convenient, this low-mercury tuna is an excellent source of protein and can easily elevate salads or grain bowls.

3. Wild Planet Wild Pacific Sardines

Packed with protein and omega-3 fatty acids, these sardines are ideal for those looking to improve satiety and support heart health.

4. Nurri Protein Milkshakes

Ideal for on-the-go nutrition, these shakes offer a quick and convenient protein boost to help curb cravings between meals.

5. RX Bars

Made with real ingredients, these protein bars provide a satisfying balance of protein and fiber, keeping hunger at bay without the worry of processed fillers.

6. Frozen Organic Berries

Rich in fiber and free from added sugars, these berries are versatile additions to smoothies and oatmeal.

7. Rolled Oats

A high-fiber whole grain option for breakfast, rolled oats help keep hunger levels down, making them a breakfast staple.

8. Frozen Salmon or Chicken Breasts

Lean sources of protein, these frozen options make weeknight cooking simple and nutritious. Kirkland Signature or Trident Seafoods are both great choices.

9. Kirkland Signature Chunk Chicken Breast

This convenient canned protein option is low in fat and perfect for quick meals, helping keep your diet balanced and satisfying.

Final Thoughts

With the right choices, your journey to weight loss doesn’t have to feel overwhelming. Whether you’re planning meals for the week or looking for quick snack options, Costco’s selection of high-protein, high-fiber foods can help you stay full and satisfied all while keeping you on track with your health goals for the year ahead. Happy shopping!


Leah Groth, a seasoned shopping editor and journalist, continues to guide readers towards healthy trends and deals. For more tips on smart shopping, read more about Leah’s insights here.

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