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Roe

Seafood

Roe

Roe is the eggs of fish and marine animals, prized as a concentrated source of omega-3s, vitamin B12, and protein.

Roe refers to the fully ripe internal egg masses in the ovaries, or the released external egg masses of fish and certain marine animals, widely consumed as a nutrient-dense delicacy.

omega-3 rich protein-dense seafood

Typical serving · 30g

Common varieties · salmon roe (ikura), sturgeon caviar, flying fish roe (tobiko), capelin roe (masago), shad roe +1 more

70health

Overall context score across nutrition, safety, and diet fit

At a glance

Quick facts

Simple indicators based on nutrition, processing, and diet fit.

High proteinLow carbLow glycemicDiabetes-friendly

The story

What makes it unique

Roe is a nutrient-dense food characterized by a high protein and fat profile, specifically rich in omega-3 fatty acids (DHA and EPA). It digests moderately fast due to its lipid content but provides strong satiety from its protein density. Often consumed cured or salted, which significantly increases sodium content and alters its processing classification.

Varieties: salmon roe (ikura) · sturgeon caviar · flying fish roe (tobiko) · capelin roe (masago) · shad roe · mullet roe

#roe#fisheggs#omega3#seafood#lowcarb#highprotein#keto#vitaminb12#caviar#sushi#nutrientdense

Per 100g

Nutrition breakdown

Macro balance and key metrics at a glance.

Energy

220kcal

Density 2.20 kcal/g

Protein

24g

Carbs

1.5g

Fat

14g

Fiber

0g

Sugar

0 g

Sodium

800 mg

Potassium

200 mg

Glycemic index

0

Glycemic load

0

Water content

60%

Standout compounds

Nutrient highlights

  • Omega-3 (DHA/EPA)

    high

    Supports brain health and reduces inflammation

  • Vitamin B12

    high

    Essential for nerve function and red blood cell formation

  • Selenium

    moderate

    Acts as an antioxidant and supports thyroid function

  • Vitamin D

    moderate

    Promotes calcium absorption and bone health

  • Choline

    high

    Important for liver function and brain development

Wellness map

Health scores & processing

Weight loss
60
Satiety
75
Blood sugar
95
Gut health
50
Heart health
65
Fitness
80
Processing
50

NOVA processing scale

1
Min
2
3
4
Ultra

moderately processed · Whole food

Most commercial roe is cured with salt or brine, classifying it as a processed culinary ingredient, though fresh roe is minimally processed (Nova 1).

Diet compatibility

  • Weight loss
  • Muscle gain
  • Diabetes
  • Gut health
  • Low carb
  • High protein
  • Heart health

Relative standing

Food rankings

Qualitative ranks compared to similar whole foods.

  • Satietygood
  • Blood sugarexcellent
  • Nutrient densityexcellent
  • Fitness fuelgood
  • Processing qualitymoderate

Eat with confidence

Food safety profile

Roe is generally safe but can contain moderate levels of heavy metals like mercury depending on the fish species. Unpasteurized roe poses a slight listeria risk for immunocompromised individuals.

80safety

Evidence confidence 85%

  • Pesticideslow
  • Antibioticslow
  • Heavy metalsmoderate
  • Contaminationlow

Watch for

  • mercury
  • microplastics
  • listeria

Safer choices

Pasteurized roe or roe sourced from smaller, short-lived fish like capelin.

Prep tips

Keep refrigerated and consume before expiration; avoid washing cured roe as it removes flavor and alters texture, but rinse fresh roe gently in cold water if needed.

Heavy metal accumulation varies by species and water source; farm-raised roe may have different contaminant profiles than wild-caught.

Deep dive

Health analysis

How this food may fit different goals and preparation choices.

  1. Weight loss

    High calorie and fat density makes it easy to overconsume; best used as a garnish rather than a main dish for weight loss.

  2. Blood sugar

    Virtually zero carbohydrates result in no glycemic impact, making it highly suitable for blood sugar management.

  3. Fitness & energy

    Provides high-quality protein and anti-inflammatory omega-3s that support muscle recovery, though it lacks fast-acting carbs for immediate fuel.

  4. Gut health

    Lacks dietary fiber, so it does not directly support bowel regularity, though its healthy fats may help reduce gut inflammation.

  5. Processing quality

    Typically cured with high amounts of salt, which degrades its minimally processed status and adds significant sodium.

  6. Food safety

    Risk of heavy metals like mercury exists depending on the fish species, and unpasteurized roe carries a minor listeria risk.

  7. Common mistakes

    Assuming all roe is equal; caviar and tobiko are often heavily salted, whereas fresh shad roe is much lower in sodium.

  8. Best preparation

    Consumed raw or lightly cooked as a garnish, sushi topping, or spread to maximize omega-3 retention without adding extra sodium.

Practical guide

Best use cases

When and how this food fits real eating patterns.

  • Keto garnish

    Adds healthy fats and umami flavor to low-carb meals without adding carbs.

  • Nutrient-dense topping

    Used in small amounts to boost B12 and omega-3 intake on salads or sushi.

  • Post-workout recovery

    Provides high-quality protein and anti-inflammatory fats to aid muscle repair.

Balance sheet

Pros & cons

Upsides

  • Exceptional source of omega-3 fatty acids
  • Very high in vitamin B12 and choline
  • Zero carbohydrates with no glycemic impact
  • Rich in high-quality complete protein
  • Contains beneficial trace minerals like selenium and iodine

Trade-offs

  • Very high in sodium when cured or salted
  • Calorie and fat dense for a small serving volume
  • Contains high amounts of dietary cholesterol
  • Risk of heavy metal contamination depending on fish species
  • Expensive and often considered an acquired taste

Fit check

Who is it for?

Great match

  • keto and low-carb diets
  • nutrient density maximization
  • omega-3 supplementation
  • post-workout recovery

Consider alternatives

  • low-sodium diets
  • strict calorie counting
  • budget-friendly meal prep

Side by side

How it compares

Open the full head-to-head analysis for nutrition, safety, and practical tradeoffs.

  • Roe

    This food

    Roe

    VS95% alike
    Caviar

    Compare with

    Caviar

    Caviar is specifically sturgeon roe and offers a similar nutrient profile, but both are high in sodium and omega-3s.

    Caviar and other roe are nutritionally identical, both offering high omega-3s and B12, though both are high in sodium.

    Roe vs Caviar
  • Roe

    This food

    Roe

    VS80% alike
    Salmon

    Compare with

    Salmon

    Salmon provides more protein and volume for fewer calories, while roe offers a more concentrated dose of omega-3s and B12 per gram.

    Salmon provides more filling protein for fewer calories, while roe delivers a more concentrated punch of omega-3s and B12.

    Roe vs Salmon
  • Roe

    This food

    Roe

    VS75% alike
    Sardines

    Compare with

    Sardines

    Sardines are a more budget-friendly and filling source of omega-3s, whereas roe is a more concentrated, luxury source of the same nutrients.

    Sardines are a more budget-friendly and filling source of omega-3s, while roe is a concentrated, luxury garnish.

    Roe vs Sardines
  • Roe

    This food

    Roe

    VS70% alike
    Shrimp

    Compare with

    Shrimp

    Shrimp is much lower in calories and fat, making it better for weight loss, while roe provides significantly more omega-3 fats and vitamin B12.

    Shrimp is much lower in calories and better for weight loss, while roe provides significantly more omega-3s and B12.

    Roe vs Shrimp
  • Roe

    This food

    Roe

    VS65% alike
    Chicken Eggs

    Compare with

    Chicken Eggs

    Chicken eggs offer more versatile protein and satiety for fewer calories, while fish roe provides far more omega-3 DHA and B12.

    Chicken eggs offer more versatile protein and satiety for fewer calories, while fish roe provides far more omega-3 DHA.

    Roe vs Chicken Eggs
  • Roe

    This food

    Roe

    VS60% alike
    Oysters

    Compare with

    Oysters

    Oysters are a low-calorie source of zinc and B12, whereas roe is a high-fat, calorie-dense source of omega-3s.

    Oysters are a low-calorie source of zinc and B12, whereas roe is a high-fat, calorie-dense source of omega-3s.

    Roe vs Oysters
  • Roe

    This food

    Roe

    VS75% alike
    Anchovies

    Compare with

    Anchovies

    Both are salty, cured seafoods rich in omega-3s, but anchovies provide more protein per calorie and are less expensive.

    Both are salty, cured seafoods rich in omega-3s, but anchovies provide more protein per calorie and are less expensive.

    Roe vs Anchovies
  • Roe

    This food

    Roe

    VS55% alike
    Tuna

    Compare with

    Tuna

    Tuna is a lean protein powerhouse for muscle gain and weight loss, while roe is a high-fat delicacy better suited for keto and nutrient density.

    Tuna is a lean protein powerhouse for muscle gain and weight loss, while roe is a high-fat delicacy better suited for keto.

    Roe vs Tuna
  • Roe

    This food

    Roe

    VS70% alike
    Mackerel

    Compare with

    Mackerel

    Mackerel provides a similar omega-3 profile in a more filling, protein-rich fillet, whereas roe delivers those fats in a concentrated garnish.

    Mackerel provides a similar omega-3 profile in a more filling, protein-rich fillet, whereas roe delivers those fats in a concentrated garnish.

    Roe vs Mackerel
  • Roe

    This food

    Roe

    VS50% alike
    Cod Liver

    Compare with

    Cod Liver

    Both are exceptionally high in vitamin D and omega-3s, but cod liver is extremely high in vitamin A, which poses toxicity risks in large amounts, making roe safer for regular consumption.

    Both are high in vitamin D and omega-3s, but cod liver has toxic levels of vitamin A in large doses, making roe the safer choice.

    Roe vs Cod Liver

Common questions

FAQ

Answers aligned with how people search for this food.

  • Is roe good for weight loss?

    Roe is high in calories and fat for its volume, making it less ideal for weight loss unless used sparingly as a flavor garnish.

  • Can diabetics eat fish roe?

    Yes, roe contains almost zero carbohydrates and will not spike blood sugar, though cured versions should be eaten in moderation due to sodium.

  • Is roe high in cholesterol?

    Yes, roe is high in dietary cholesterol, but for most people, dietary cholesterol has a minimal impact on blood cholesterol compared to saturated fat.

  • Does fish roe have omega-3?

    Absolutely, roe is an excellent source of DHA and EPA omega-3 fatty acids, which support brain and heart health.

  • Why is roe so salty?

    Most commercial roe is cured in brine or salt to preserve it and enhance flavor, which significantly increases its sodium content.

  • Can you eat roe on a keto diet?

    Yes, roe is very low in carbs and high in fat and protein, making it a great fit for ketogenic diets.

  • Is caviar the same as roe?

    All caviar is roe, but not all roe is caviar; true caviar comes specifically from sturgeon, while roe can come from any fish.

  • What are the health benefits of salmon roe?

    Salmon roe is packed with omega-3s, vitamin D, and vitamin B12, supporting cardiovascular health and neurological function.

Transparency

Data confidence

Estimated confidence for nutrition data, interpretation, safety notes, and comparisons.

90

Nutrition data

85

Health analysis

80

Food safety

85

Comparisons