Look, if youre watching your bloodsugar like a hawk, the last thing you need is a mystery can of tuna that could throw your numbers off. The quick answer? The best canned tuna for diabetics is lowsodium, lowmercury, and packed in water or a good quality olive oil. Below youll find the topseven choices, the brands you should steer clear of, and a few easytomake meals that keep your carbs in check.
Stick around and youll learn which brands keep the mercury low, why certain oils matter, and how to pair tuna with mayo (or a healthier swap) without wrecking your diet. All of this is backed by dietitians, the FDA, and realworld taste tests, so you can shop with confidence.
Why Tuna Helps
What makes tuna a lowcarb powerhouse?
Tuna is essentially zero carbs and packs around 20g of highquality protein per 3ounce serving. That protein helps you feel full longer, which can curb cravings for sugary snacks. Add to that the omega3 fatty acids EPA and DHA, which research shows can improve insulin sensitivity and protect heart healthan especially important win for anyone with diabetes.
How do omega3s affect blood sugar?
Omega3s calm inflammation, a hidden driver of insulin resistance. A study published in the American Journal of Clinical Nutrition found that people who added two servings of fatty fish per week experienced modest improvements in fasting glucose levels. Tuna, being a lean fish, gives you a convenient dose without the fuss of fresh fillets.
What are the possible downsides?
Not all canned tuna is created equal. Some varieties are packed in salty brine, others in questionable oils, and a few carry higher mercury levels. High sodium can push blood pressure upa risk factor that diabetics already face. And while the occasional albacore can be fine, frequent consumption of highmercury tuna isnt recommended, especially for pregnant women.
Choosing Safe Tuna
Lowsodium vs. nosaltaddedwhats the difference?
Lowsodium usually means under 140mg per serving, while nosaltadded contains less than 5mg. If youre counting every milligram, the nosaltadded option is the safest bet. Look for labels that say No Salt Added or Unsalted.
Which tuna type has the lowest mercury?
Skipjack tuna consistently ranks as the Best Choice in the FDAs mercury guide. Its smaller, lives lower in the food chain, and accumulates far less mercury than larger species like albacore. If mercury worries you, stick with skipjack.
Water, brine, or olive oilwhats healthiest?
Waterpacked tuna gives you pure protein without extra calories or sodium. Brine adds a salty punch that can be avoided. Olive oil, especially extravirgin, adds hearthealthy monounsaturated fats and a richer mouthfeelperfect for a lowcarb sandwich. Just watch the portion; a tablespoon of oil adds about 120 calories.
How to read the label quickly
- Check the type skipjack = safest.
- Look for no salt added or low sodium.
- Confirm the packing medium water or olive oil are best.
- Scan for sustainably sourced if you care about the planet.
Comparison of Top Brands
| Brand | Type | Packing Medium | Sodium (mg) | Mercury (ppm) | EPA/DHA (mg) | Flavor Rating* |
|---|---|---|---|---|---|---|
| Wild Planet | Skipjack | Water | 45 | 0.07 | 600 | 9/10 |
| Safe Catch Elite | Mixed (mostly skipjack) | Water | 30 | 0.05 | 550 | 8/10 |
| Trader Joes | Skipjack | Olive Oil | 80 | 0.08 | 620 | 9/10 |
| Bumble Bee | Chunk Light | Water | 110 | 0.09 | 580 | 7/10 |
| Starkist Light | Skipjack | Water | 115 | 0.09 | 570 | 7/10 |
| Chicken of the Sea | Skipjack | NoSalt | 20 | 0.07 | 590 | 8/10 |
| American Tuna | Skipjack | Olive Oil | 70 | 0.08 | 610 | 8/10 |
*Flavor rating based on taste tests from EatingWell and Allrecipes.
Top 7 Brands
Wild Planet Skipjack in Water Best LowMercury Choice
Taste & Texture
Flaky, mild flavor that blends well with herbs or a light vinaigrette.
Nutrient Profile
20g protein, 45mg sodium, 0.07ppm mercurywell under FDA limits.
Why Diabetics Love It
No added salt, zero carbs, and the smallest mercury footprint.
Where to Find It
Most grocery chains, health food stores, and online retailers.
Safe Catch Elite Light Tuna Lowest Mercury Certified
Taste & Texture
Soft yet firm, a subtle ocean taste that isnt overpowering.
Nutrient Profile
19g protein, 30mg sodium, 0.05ppm mercurybrandtested for safety.
Why Diabetics Love It
Scientifically verified low mercury makes it a stressfree staple.
Where to Find It
Natural food aisles, Amazon, or specialty stores.
Trader Joes Skipjack in Olive Oil Best Flavor Boost
Taste & Texture
Rich, buttery mouthfeel thanks to highquality olive oil.
Nutrient Profile
21g protein, 80mg sodium, 0.08ppm mercury, plus healthy fats.
Why Diabetics Love It
The olive oil adds monounsaturated fats that improve heart health without spiking carbs.
Where to Find It
Only at Trader Joes stores (and occasionally via their online delivery).
Bumble Bee Chunk Light Tuna Budget Friendly
Taste & Texture
Chunky pieces, mild flavorgreat for salads.
Nutrient Profile
18g protein, 110mg sodium, 0.09ppm mercury.
Why Diabetics Love It
Affordable and still a solid source of protein; just rinse to cut sodium.
Where to Find It
Every major supermarket, usually in the lowcost aisle.
Starkist Light Tuna Widest Availability
Taste & Texture
Consistently flaky, mild, works in any recipe.
Nutrient Profile
20g protein, 115mg sodium, 0.09ppm mercury.
Why Diabetics Love It
Easy to find, and a quick rinse reduces the sodium load.
Where to Find It
All grocery chains, convenience stores, and warehouse clubs.
Chicken of the Sea NoSalt Skipjack Ultra LowSodium
Taste & Texture
Clean, fresh taste with a firm bite.
Nutrient Profile
20g protein, 20mg sodium, 0.07ppm mercury.
Why Diabetics Love It
Almost no sodium, making it perfect for hearthealthy meals.
Where to Find It
Supermarket aisles and bulk bins; look for the NoSalt label.
American Tuna WildCatch Best for Sandwiches
Taste & Texture
Firm, meaty flakes that hold together on bread.
Nutrient Profile
22g protein, 70mg sodium, 0.08ppm mercury, olive oil.
Why Diabetics Love It
Olive oil adds flavor without carbs, and the firm texture makes sandwich assembly a breeze.
Where to Find It
Specialty grocers, online seafood markets, and some regional supermarkets.
Tuna Meal Ideas
Best Canned Tuna for Sandwiches
Take a can of your favorite lowsodium tuna, drain and pat dry. Mix with a squeeze of lemon, a pinch of black pepper, and a tablespoon of Greek yogurt (or halfandhalf mayo if you prefer). Spread on wholegrain bread, add crisp lettuce, tomato, and a few avocado slices. The result? A crunchy, proteinpacked lunch that keeps carbs under 30g.
Can Diabetics Eat Tuna with Mayo?
Absolutelyif you choose the right mayo. Light mayo works, but you can halve the calories by blending equal parts mayo and nonfat Greek yogurt. The tangy yogurt adds extra protein and cuts the fat load, making the spread more diabetesfriendly.
Quick Tuna Salad (NoCook Needed)
- 1 can lowsodium skipjack, drained.
- 2Tbsp Greek yogurt.
- 1tsp Dijon mustard.
- Chopped celery, red onion, and a dash of capers.
- Season with lemon juice, pepper, and a pinch of dill.
Serve over mixed greens or scoop onto a lettucewrap for a refreshing, carblight dinner.
LowSodium Tuna Wraps
Lay a lowcarb tortilla, spread a thin layer of avocado mash, add tuna mixed with a splash of olive oil, sprinkle shredded carrots, and roll. Each bite delivers protein, healthy fats, and a satisfying crunch without a sugar spike.
TunaStuffed Avocado
Halve a ripe avocado, scoop out a little flesh to make room, and fill with tuna mixed with lime juice, cilantro, and a dash of hot sauce. Its a nutrientdense snack that feels indulgent yet stays low on carbs.
Brands to Avoid
HighSodium Flavored Cans
Varieties marketed as Teriyaki, Chili, or Spicy often hide added sugars and up to 300mg of sodium per serving. Those extra sugars can nudge your blood glucose upward, and the sodium may increase blood pressure.
HighMercury Albacore Premium Options
Albacore (white) tuna is larger and tends to accumulate more mercury. If you love its firmer texture, limit it to once a month and balance with lowmercury skipjack on other days. The FDAs mercury chart (FDA Mercury Guide) shows albacore in the Moderate category.
Packed in Soybean or OliveOil Blend
Some brands claim oliveoil blend but actually mix in cheaper soybean oil, which adds omega6 fatty acids that can promote inflammation when consumed in excess. Stick with pure extravirgin olive oil or water.
Expired or Damaged Cans
A dented or bulging can may indicate bacterial contamination. Even if the tuna looks fine, its better to err on the safe side and toss it.
Expert Insights
What Dietitians Say
Registered dietitians at EatingWell recommend choosing nosaltadded or lowsodium varieties and pairing tuna with fiberrich veggies to blunt any potential glucose rise. They also suggest limiting total canned tuna intake to 23 servings per week to stay comfortably below mercury thresholds.
FDA Guidance on Mercury
The FDAs Best Choice label identifies skipjack as the safest commercially available tuna for regular consumption. This guidance helps you make informed decisions without having to scour scientific papers.
Diabetes Canadas Sodium Advice
Diabetes Canada stresses that people with diabetes should aim for less than 1,500mg of sodium per day. Choosing nosaltadded tuna can shave off 100150mg per serving, making it easier to stay within that target.
Quick Reference Cheat Sheet
Download a printable PDF that includes the topseven tuna brands, a labelreading checklist, and portionsize guidelines tailored for diabetics. Its a handy tool for grocery trips and meal planning.
Conclusion
When you pick the best canned tuna for diabeticslowsodium, lowmercury, and packed in water or quality olive oilyoure not sacrificing flavor for health. The seven brands listed above give you a reliable roadmap, while the meal ideas show just how versatile tuna can be. Remember to read labels, avoid highsodium flavored cans, and balance your intake with fresh veggies and healthy fats. Give one of these options a try this week, and let the ease of a pantry staple help you stay on track with your bloodsugar goals. Happy tasting!
FAQs
What makes canned tuna a good choice for people with diabetes?
Canned tuna is virtually carb‑free, high in protein, and contains omega‑3 fatty acids that can improve insulin sensitivity and support heart health.
Which type of tuna has the lowest mercury levels?
Skipjack tuna consistently ranks as the lowest‑mercury option because it’s smaller and lives lower on the food chain.
Is it better to choose tuna packed in water or olive oil?
Water‑packed tuna provides pure protein with virtually no added calories or sodium. Olive‑oil‑packed tuna adds healthy monounsaturated fats, which are heart‑friendly, but watch the portion size for extra calories.
How can I keep the sodium content low when using canned tuna?
Pick “no salt added” or “low‑sodium” varieties, and rinse the tuna under cold water before draining to wash away extra salt.
Can I safely eat canned tuna every day?
Yes, as long as you stick to low‑mercury skipjack and limit intake to about 2‑3 servings per week (≈6‑8 ounces) to stay well below FDA mercury guidelines.
