T

seafood

Tuna

9/ 10Excellent
Controversy: 5.0

Rated by 11 diets

10 approve0 caution1 avoid

The diets react (see scores below)

Approves10
Disapproves1
Is Tuna Healthy?

Yes — Tuna is broadly considered healthy. 10 out of 11 diets approve it.

Nutrition Facts
Per 100g

Diet Ratings

KetoApproved

Tuna is an excellent keto protein source with 0g net carbs and high protein (20-25g per 100g). Canned tuna in water or oil is convenient and macro-friendly. One of the most reliable keto proteins.

VeganAvoid

Tuna is a marine fish. Consuming it violates the core vegan principle of excluding all animal flesh. No ambiguity.

PaleoApproved

Tuna is unprocessed seafood rich in protein and omega-3 fatty acids, available to coastal hunter-gatherers. Contains no grains, legumes, or problematic additives when fresh or frozen without added ingredients.

MediterraneanApproved

Tuna is a fatty fish rich in omega-3 fatty acids, a cornerstone of the Mediterranean diet. The diet recommends fish and seafood 2-3 times weekly, and tuna is an excellent source of protein and heart-healthy fats. Tuna is a traditional Mediterranean ingredient, particularly in Mediterranean regions with fishing traditions.

CarnivoreApproved

Fatty fish, excellent source of animal protein, omega-3 fatty acids, and micronutrients including selenium and B vitamins. Pure animal product, minimally processed when fresh or canned in water/oil.

Whole30Approved

Tuna is seafood, which is explicitly allowed on Whole30. It is a whole, unprocessed protein source. (Note: canned tuna should be checked for added ingredients like soy or sugar.)

Low-FODMAPApproved

Tuna is a protein-based fish with negligible FODMAP content. Contains no significant fructans, GOS, lactose, excess fructose, or polyols. Safe at standard serving sizes during elimination phase.

DASHApproved

Tuna is a lean fish rich in omega-3 fatty acids, protein, and B vitamins. DASH emphasizes fish 2-3 times per week. Fresh or water-packed tuna is low in sodium. Canned tuna in oil or salt should be rinsed or chosen low-sodium.

ZoneApproved

Tuna is an excellent lean protein source with ~25-26g protein per 3 oz serving, minimal carbs (~0g), and low fat (~1g for canned in water, ~5g for fresh). It is an ideal Zone protein block building material. Additionally, tuna provides omega-3 fatty acids, which align with Sears' anti-inflammatory focus. One of the most favorable protein choices for Zone.

Tuna is a fatty fish rich in omega-3 fatty acids (EPA and DHA) with strong anti-inflammatory properties. Reduces inflammatory markers (CRP, IL-6) in research. High in selenium and B vitamins. Aligns with anti-inflammatory emphasis on fatty fish.

GLP-1 FriendlyApproved

Tuna is high in protein (25-30g per 3oz), low in fat (especially canned in water), and nutrient-dense with omega-3 fatty acids. Easy to digest and portion-friendly. Canned tuna in water is convenient and shelf-stable. Fresh tuna is equally excellent. Supports muscle preservation and satiety.

Controversy Index

Score range: 19/10. Higher controversy = more disagreement between diets.

Consensus5.0Divisive

Diet-Specific Tips for Tuna

Keto 9/10
  • 0g net carbs
  • 20-25g protein per 100g
  • Moderate fat (varies by preparation)
  • Omega-3 fatty acids
  • Convenient and shelf-stable
Paleo 9/10
  • Unprocessed seafood
  • High protein and omega-3s
  • No grains or legumes
  • Ancestrally available to coastal populations
Mediterranean 8/10
  • Fatty fish (omega-3 rich)
  • Seafood (encouraged 2-3x weekly)
  • Traditional Mediterranean ingredient
  • Heart-healthy fats
Carnivore 9/10
  • animal-derived
  • seafood
  • high protein
  • omega-3 rich
  • micronutrient-dense
Whole30 9/10
  • Seafood
  • Whole protein
  • No excluded ingredients
Low-FODMAP 9/10
  • protein-based food
  • minimal carbohydrates
  • no FODMAP-containing compounds
DASH 8/10
  • lean fish (DASH core food)
  • omega-3 fatty acids
  • high protein
  • low sodium (fresh or water-packed)
  • rich in B vitamins
Zone 9/10
  • Lean protein source (~25g per 3 oz)
  • Zero carbohydrate content
  • Low fat profile
  • Omega-3 fatty acids support anti-inflammatory goals
  • omega-3 fatty acids (EPA, DHA)
  • reduces inflammatory markers
  • selenium
  • B vitamins
  • lean protein
  • very high protein density
  • low fat (water-packed)
  • omega-3 content
  • easy digestibility
  • convenient, shelf-stable option