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Halibut vs. Turbot — Health Impact and Nutrition Comparison

Article author photo Victoria Mazmanyan by Victoria Mazmanyan | Last updated on June 16, 2025
Education: General Medicine at YSMU
Halibut
vs
Turbot

Summary

Halibut is larger in size and usually more accessible due to its lower price. It is generally denser in nutrients and higher in calories.

Halibut is higher in fats, being particularly rich in monounsaturated fats, but lower in cholesterol. Trout, on the other hand, is richer in protein.

Turbot provides about 9 times more folate or vitamin B9, 3 times more vitamin B12, and 2 times more vitamin B5. However, halibut tends to be richer in fat-soluble vitamins A, D, E, and K, and is twice as high in vitamin B6.

Trout has 6 times more calcium and 2 times more magnesium, while halibut provides 2 times more iron and zinc. 

 

Introduction

While halibut and turbot are two types of white flatfish, some qualities set them apart. In this article, we will focus on these qualities and discuss their impact on health, as supported by scientific evidence.

Taste and Use

Halibut is a larger fish with a mild flavor and a firm texture. Trout is smaller, tends to have a more delicate but rich taste, and a softer texture.

Halibut is more accessible and lower in price, while turbot tends to be considered a more refined and expensive option.

Nutrition

The nutritional infographics are presented for 100g servings of Greenland halibut and European turbot, both cooked by dry heat.

On our website, you can also find information about the nutritional values of these fish when cooked by other methods and in various serving sizes, if you're interested.

Macronutrients and Calories

Halibut is generally denser in nutrients, consisting of 62% nutrients and 38% water, while turbot is made up of 70% nutrients and 30% water.

Macronutrient Comparison

Macronutrient breakdown side-by-side comparison
18% 18% 62% 2%
Protein: 18.42 g
Fats: 17.74 g
Carbs: 0 g
Water: 61.88 g
Other: 1.96 g
Turbot
3
21% 4% 70% 5%
Protein: 20.58 g
Fats: 3.78 g
Carbs: 0 g
Water: 70.45 g
Other: 5.19 g
Contains more FatsFats +369.3%
Contains more ProteinProtein +11.7%
Contains more WaterWater +13.8%
Contains more OtherOther +164.8%
~equal in Carbs ~0g

Calories

Halibut is significantly higher in calories due to a higher fat content. A 100g serving of halibut and turbot contains 239 and 122 calories, respectively. This means that halibut provides 117 more calories per 100g serving.

Protein

While both fish are good sources of protein, turbot is richer in this nutrient, containing 20.6g of protein per 100g serving, whereas the same amount of halibut provides 18.4g.

Turbot is naturally richer in all essential amino acids.

Fats

Halibut is a fattier fish, containing 14g more fat per 100g serving compared to turbot. A 100g serving of halibut provides 17.7g of fats, while the same serving of turbot has 3.8g of fats.

The fat found in halibut is composed of 69% monounsaturated fats, 20% saturated fats, and 11% polyunsaturated fatty acids. Half of the saturated acid in halibut is palmitic acid. Of the monounsaturated fats, there are mostly omega-7 and omega-9 fatty acids, such as palmitoleic acid, oleic acid, and erucic acid.

Exact information about the fatty acid composition of turbot is scarce.

Halibut is surprisingly slightly lower in cholesterol compared to turbot.

Fat Type Comparison

Fat type breakdown side-by-side comparison
20% 69% 11%
Saturated fat: Sat. Fat 3.102 g
Monounsaturated fat: Mono. Fat 10.742 g
Polyunsaturated fat: Poly. Fat 1.753 g
Turbot
1
Contains more Mono. FatMonounsaturated fat +∞%
Contains more Poly. FatPolyunsaturated fat +∞%

Carbohydrates

Like most fish, halibut and turbot contain no carbohydrates.

Vitamins

Turbot provides about 9 times more folate or vitamin B9, 3 times more vitamin B12, and 2 times more vitamin B5. It is also richer in vitamin B3 and contains vitamin C, which halibut lacks.

On the other hand, halibut is twice as rich in vitamin B6 and tends to provide more fat-soluble vitamins A, D, E, and K.

Vitamin Comparison

Vitamin comparison score is based on the number of vitamins by which one or the other food is richer. The "coverage" charts below show how much of the daily needs can be covered by 300 grams of the food.
Vitamin C Vit. C Vitamin A Vit. A Vitamin E Vit. E Vitamin D Vit. D Vitamin B1 Vit. B1 Vitamin B2 Vit. B2 Vitamin B3 Vit. B3 Vitamin B5 Vit. B5 Vitamin B6 Vit. B6 Vitamin B12 Vit. B12 Vitamin K Vit. K Folate Folate Choline Choline 0% 6% 0% 0% 18% 24% 36% 17% 112% 120% 0% 0.75% 0%
Turbot
5
Vitamin C Vit. C Vitamin A Vit. A Vitamin E Vit. E Vitamin D Vit. D Vitamin B1 Vit. B1 Vitamin B2 Vit. B2 Vitamin B3 Vit. B3 Vitamin B5 Vit. B5 Vitamin B6 Vit. B6 Vitamin B12 Vit. B12 Vitamin K Vit. K Folate Folate Choline Choline 5.7% 4% 0% 0% 19% 22% 50% 39% 56% 318% 0% 6.8% 0%
Contains more Vitamin AVitamin A +50%
Contains more Vitamin B6Vitamin B6 +100.4%
Contains more Vitamin CVitamin C +∞%
Contains more Vitamin B3Vitamin B3 +39.3%
Contains more Vitamin B5Vitamin B5 +128.5%
Contains more Vitamin B12Vitamin B12 +164.6%
Contains more FolateFolate +800%
~equal in Vitamin E ~mg
~equal in Vitamin D ~µg
~equal in Vitamin B1 ~0.076mg
~equal in Vitamin B2 ~0.097mg
~equal in Vitamin K ~µg
~equal in Choline ~mg

Minerals 

The two types of fish have different mineral compositions. Halibut contains 2 times more iron and zinc and is somewhat higher in phosphorus and potassium. 

In contrast, trout is 6 times richer in calcium, 2 times richer in magnesium, and overall richer in manganese and copper.

When comparing turbot and halibut cooked with the same method, unsalted halibut tends to contain less sodium than unsalted turbot.

Mineral Comparison

Mineral comparison score is based on the number of minerals by which one or the other food is richer. The "coverage" charts below show how much of the daily needs can be covered by 300 grams of the food.
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 24% 1.2% 30% 32% 13% 14% 90% 13% 2% 255%
Turbot
4
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 46% 6.9% 27% 17% 16% 7.6% 71% 25% 2.9% 255%
Contains more PotassiumPotassium +12.8%
Contains more IronIron +84.8%
Contains more ZincZinc +82.1%
Contains more PhosphorusPhosphorus +27.3%
Contains less SodiumSodium -46.4%
Contains more MagnesiumMagnesium +97%
Contains more CalciumCalcium +475%
Contains more CopperCopper +23.7%
Contains more ManganeseManganese +46.7%
~equal in Selenium ~46.8µg

Glycemic Index

The glycemic index value of fish, such as halibut and turbot, is considered to be 0 as they contain no carbohydrates.

Insulin Index

The insulin index is a helpful tool for foods with no carbohydrates, as it provides insight into the effects of the given food on insulin levels. The insulin index value of white fish, such as turbot and halibut, is 59 (1).

Health Impact

Research on the effects of fish on health primarily focuses on either fatty fish or lean white fish. Halibut and trout are both lean white fish; however, their difference lies in their fat content - halibut is considerably higher in fats. 

Cardiovascular Health

Research consistently shows that fish consumption is associated with a lower risk of cardiovascular disease. However, these findings are more consistent with the intake of fatty fish. The American Heart Association recommends eating fish twice a week (2, 3).

While fish intake can reduce the risk of cardiovascular disease, fried fish may have the opposite effect, being associated with an increased risk of cardiovascular events (4).

Diabetes

While some studies have found an inverse association between fish consumption and the risk of developing type 2 diabetes, high-quality meta-analyses have found no connection between the two (5, 6, 7).

Mercury Content

 According to our findings, halibut and turbot contain approximately the same level of mercury (8, 9). 

For pregnant or breastfeeding women, the FDA recommends eating only one serving of halibut a week due to its mercury content (10).  

Article author photo Victoria Mazmanyan
Education: General Medicine at YSMU
Last updated: June 16, 2025

Infographic

Halibut vs Turbot infographic
Infographic link

All nutrients comparison - raw data values

Nutrient Halibut Turbot DV% diff.
Vitamin B12 0.96µg 2.54µg 66%
Monounsaturated fat 10.742g 27%
Fats 17.74g 3.78g 21%
Vitamin B6 0.485mg 0.242mg 19%
Saturated fat 3.102g 14%
Polyunsaturated fat 1.753g 12%
Magnesium 33mg 65mg 8%
Vitamin B5 0.288mg 0.658mg 7%
Phosphorus 210mg 165mg 6%
Calories 239kcal 122kcal 6%
Vitamin B3 1.923mg 2.679mg 5%
Iron 0.85mg 0.46mg 5%
Sodium 103mg 192mg 4%
Protein 18.42g 20.58g 4%
Zinc 0.51mg 0.28mg 2%
Vitamin C 0mg 1.7mg 2%
Calcium 4mg 23mg 2%
Folate 1µg 9µg 2%
Copper 0.038mg 0.047mg 1%
Potassium 344mg 305mg 1%
Cholesterol 59mg 62mg 1%
Vitamin A 18µg 12µg 1%
Selenium 46.8µg 46.8µg 0%
Manganese 0.015mg 0.022mg 0%
Vitamin B1 0.073mg 0.076mg 0%
Vitamin B2 0.103mg 0.097mg 0%
Tryptophan 0.206mg 0.23mg 0%
Threonine 0.808mg 0.902mg 0%
Isoleucine 0.849mg 0.948mg 0%
Leucine 1.497mg 1.672mg 0%
Lysine 1.692mg 1.89mg 0%
Methionine 0.545mg 0.609mg 0%
Phenylalanine 0.719mg 0.803mg 0%
Valine 0.949mg 1.06mg 0%
Histidine 0.542mg 0.606mg 0%
Omega-3 - EPA 0.674g N/A
Omega-3 - DHA 0.504g N/A
Omega-3 - DPA 0.114g N/A

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References

All the values for which the sources are not specified explicitly are taken from FDA’s Food Central. The exact link to the food presented on this page can be found below.

  1. Halibut - https://fdc.nal.usda.gov/fdc-app.html#/food-details/174232/nutrients
  2. Turbot - https://fdc.nal.usda.gov/fdc-app.html#/food-details/174245/nutrients

All the Daily Values are presented for males aged 31-50, for 2000-calorie diets.

Data provided by FoodStruct.com should be considered and used as information only. Please consult your physician before beginning any diet.