Seafood is high in protein and big on taste. Find out how to make fish and shellfish part of your diabetes diet.
Updated on April 10, 2023
Salmon is a great choice for a diet friendly to type 2 diabetes and heart health.
Most people think of type 2 diabetes as a blood sugar issue, but it’s so much more than that. Insulin resistance — the hallmark of type 2 diabetes — can create problems for your cardiovascular health. In fact, people with type 2 diabetes are twice as likely to have heart disease or a stroke as their peers without diabetes, according to the Centers for Disease Control and Prevention (CDC).
“That’s why I recommend dietary approaches that benefit overall health and cardiovascular health,” says Jill Weisenberger, RD, a certified diabetes care and education specialist in Newport News, Virginia, and author of The Beginner’s Guide to What to Eat with Type 2 Diabetes.
RELATED: 7 Healthy Meal Tips for Type 2 Diabetes
And fish is a worthy consideration in your heart-healthy diet and lifestyle plan. Not only is fish a great source of protein and healthy fat, it contains plenty of important vitamins and minerals, notes the Washington State Department of Health.
How Often Should You Eat Fish Per Week?
The American Heart Association (AHA) recommends eating two servings of fish per week, where one serving equals 3.5 ounces (oz) of cooked fish, or about ¾ cup of flaked fish. The AHA emphasizes eating fatty fish like salmon, mackerel, trout, and sardines, because these choices are especially high in omega-3 fatty acids (more on these shortly). Limit fish like shark, swordfish, and tilefish, as these have a higher risk of mercury contamination, advises the U.S. Food and Drug Administration.
The American Diabetes Association (ADA) echoes these recommendations for people with diabetes. The ADA also notes that it’s best to grill, broil, or bake fish, as breaded and fried fish packs extra carbs and calories.
The best part about fish? You don’t have to do a lot to seafood to make it taste good.
So get to know your local seafood purveyor and make seafood part of your type 2 diabetes diet.
Salmon for Heart-Healthy Omega-3s
Salmon is a great choice of fish for type 2 diabetes because it’s high in omega-3 fatty acids, the “healthy” fats that can help reduce your risk of common diabetes-related complications like heart disease, heart failure, and stroke, according to the AHA. In fact, an analysis of four international studies found that eating at least two servings of fish per week is associated with a lower risk of heart attack, stroke, and death among people with heart disease.
As with most fish, you have a number of options for healthy cooking with diabetes, including baking, broiling, stewing, and roasting, per the AHA. Weisenberger suggests coating cooked salmon with this heart-healthy dressing: 1 tablespoon (tbsp) olive oil, 1½ tbsp lemon juice, 2 crushed garlic cloves, and a handful of fresh chopped basil. “Every single ingredient is heart-healthy and perfect for people with type 2 diabetes,” Weisenberger says. Add a salad, roasted vegetables like broccoli or asparagus, and a whole-grain like brown rice for a balanced meal, she adds.
Tilapia for Tons of Protein and Little Fat
Tilapia is a low-calorie, high-protein fish that has a very mild flavor, Weisenberger says. One small fillet that’s been steamed or poached contains 137 calories and 28.5 grams (g) of protein, according to the U.S. Department of Agriculture’s (USDA) nutrition database. Tilapia is also fairly easy to find as both a fresh and frozen fillet, and it’s even easier to prepare. Tilapia fillets are often thin, so they cook quickly (be careful not to overcook them, however, because they’ll start to fall apart).
Try this diabetes-friendly tilapia dish from Weisenberger: Sauté onions, peppers, or whatever vegetables you have on hand. Then add canned tomatoes, tomato sauce (look for low-sodium options), and Italian seasonings. Raise the heat to a low boil and place the tilapia on top. Cover and cook for a few minutes, or until the fish is cooked through. “I’d serve it with brown rice, barley, or quinoa,” Weisenberger says.
RELATED: What Are the Best and Worst Sources of Fat?
Cod for a Versatile, Low-Calorie Meal
Like tilapia, cod is a low-calorie, high-protein white fish (148 calories and 32.6 g protein per small steamed or poached fillet, as the USDA notes). “[Cod] has very little saturated fat and a nice amount of omega-3s,” Weisenberger says. But unlike tilapia, cod makes a slightly firmer fillet that can withstand more aggressive cooking methods, such as grilling, as well as bolder seasoning. Weisenberger loves using cod for fish tacos or even seafood gumbo (tilapia is too thin for this).
Another great way to prepare cod is to cut it in chunks, add your favorite veggies, herbs, spices, and a drizzle of olive oil. Wrap each portion in aluminum foil and bake. “This is a great way to give each family member their own personalized meal,” Weisenberger says. “I might choose onions and broccoli, and you might choose mushrooms and asparagus.”
Trout for Heart-Healthy Fatty Acids
If you know someone who fishes, hope that you get treated to a fresh trout or bass. “Fattier fish like trout contain higher amounts of omega-3 fatty acids,” says Julie Stefanski, RD, CDCES, who is based in York, Pennsylvania. The AHA backs that up, noting trout is one of many types of fish that offer these heart-healthy omega-3s.
Try baking or broiling trout with sodium-free seasoning or a little citrus juice. The challenge for people who are just learning to cook seafood is to not oversalt, especially because you want to aim for less than the AHA-approved 2,300 milligrams (mg) of salt a day, or 1,500 mg for most adults. Every fish variety has unique flavors, so it should be easy to make meals salt-free with just a touch of flavorful herbs.
Shrimp for Calorie Control and a Hearty Helping of Protein
Shrimp is very low in calories and high in protein, Weisenberger says. A 4-oz serving contains 120 calories and 23 g of protein, according to the USDA. It does contain relatively high amounts of cholesterol (170 mg) compared with other kinds of seafood, so people with diabetes who are also trying to avoid high cholesterol might want to skip it. While research is ongoing, a review and meta-analysis published in 2015 noted that while elevated total dietary cholesterol can increase the risk for heart disease, shrimp can be a healthy option when paired with lean or plant-based protein sources.
Other Shellfish for Portion Control
The challenge of having to work to get the meat out of succulent shellfish such as crab and lobster shells makes it hard to overindulge on shellfish in your diabetes diet. Plus, crab and lobster are “naturally low in fat and calories,” Stefanski says. One cup of steamed crab packs only 97 calories and nearly 1 g of fat, per estimates from the USDA. Meanwhile, 1 cup of steamed lobster provides 128 calories and 1.2 g of fat. But if you add melted butter, both fat and calories can skyrocket. “Instead, try incorporating shellfish into plant-based meals such as salads and stir-fries with tons of colorful veggies,” Stefanski says. Try a bay leaf seasoning in the cooking water for extra zest rather than salting the cooking liquid, and don’t let diabetes keep you from getting creative — use cooked seafood in recipes from cold salads to pasta, rice dishes, and soups.
RELATED: 12 Foods to Limit or Avoid in a Type 2 Diabetes Diet
Canned Tuna and Salmon for Your Budget
Fresh or frozen seafood is a delicious addition to a diabetes diet, but it can be pricey for some people. Meanwhile, canned tuna and canned salmon are more affordable shelf-stable staples you can keep in your pantry. And they do count as part of your fish-eating goal for the week. “Most people don’t include enough fish in their diets, but with this easy option, they may reach the goal of two to three servings of fish per week,” Stefanski says. Pick fish canned in water rather than packed in oil to reduce calories and fat. (And keep in mind the FDA’s recommendations on limiting mercury in the fish you eat.) For an easy, filling meal, mix one can of tuna with a bit of avocado, a touch of mayo if desired, and lemon pepper seasoning, Stefanski says. Then, spread the mixture over whole-wheat toast.
Sardines for Flavor and Nutrients
“Sardines really do deserve an ‘A’ on their nutritional report card,” Stefanski says. Not only are sardines high in omega-3s, but they contain some calcium and vitamin D, she says. Per the USDA, 1 oz of canned sardines in oil offers 108 mg of calcium and 1.36 mcg of vitamin D. Those attributes make them an excellent food to include as part of your diabetes diet and your bone health program, as long as you read labels to find brands low in salt. Canned sardines are relatively affordable, and they are flavorful on their own or added to other dishes. If you’re adventurous, try grilling fresh sardines.
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Resources
- Diabetes and Your Heart. Centers for Disease Control and Prevention. June 20, 2022.
- Health Benefits of Fish. Washington State Department of Health.
- Fish and Omega-3 Fatty Acids. American Heart Association. November 1, 2021.
- Advice About Eating Fish. U.S. Food and Drug Administration. September 28, 2022.
- What Superstar Foods Are Good for Diabetes? American Diabetes Association.
- Picking Healthy Proteins. American Heart Association. November 1, 2021.
- Mohan D, Mente A, Dehghan M, et al. Associations of Fish Consumption With Risk of Cardiovascular Disease and Mortality Among Individuals With or Without Vascular Disease From 58 Countries. JAMA Internal Medicine. March 8, 2021.
- Tilapia, Steamed or Poached. U.S. Department of Agriculture. October 30, 2020.
- Cod, Steamed or Poached. U.S. Department of Agriculture. October 30, 2020.
- How Much Sodium Should I Eat per Day? American Heart Association. November 1, 2021.
- Shrimp. U.S. Department of Agriculture. April 1, 2019.
- Carson JAS, Lichtenstein AH, Anderson CAM, et al. Dietary Cholesterol and Cardiovascular Risk: A Science Advisory From the American Heart Association Circulation. January 21, 2020.
- Crab, Hard Shell, Steamed. U.S. Department of Agriculture. October 30, 2020.
- Lobster, Steamed or Boiled. U.S. Department of Agriculture. October 30, 2020.
- Sardines, Canned in Oil. U.S. Department of Agriculture. October 30, 2020.
Lynn Grieger, RDN, CDCES
Medical Reviewer
Lynn Grieger is a registered dietitian-nutritionist, certified diabetes care and education specialist, certified personal trainer, and certified health and wellness coach. She completed requirements to become a registered dietitian at Valparaiso University in 1987 and completed a dietetic internship at Ingalls Memorial Hospital in Harvey, Illinois, in 1988.
Lynn brings her expertise in nutrition, exercise, and behavior change to her work in helping people reach their individual health and fitness goals. In addition to writing for Everyday Health, she has also written for websites and publications like Food and Health Communications, Today's Dietitian, iVillage.com, and Rodale Press. She has a passion for healthy, nutrient-dense, great-tasting food and for being outdoors as much as possible — she can often be found running or hiking, and has completed a marathon in every state.
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Author
Margaret O'Malley is an executive editor at Everyday Health. A veteran digital writer, editor, and content strategist, she oversees food, diet, nutrition, fitness, and lifestyle content on Everyday Health, and for our partner sites, like Mayo Clinic Healthy Living and Mayo Clinic Diet. For almost 8 years, Margaret served as Everyday Health's launch editor and content strategist, conceiving and launching dozens of unique health sites, tools, apps, and books. Prior to joining Everyday Health, she launched and managed content channels, sites, and print publications for The Knot, iVillage, and Forbes.
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