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Grouper fish vs. Mahimahi — Health Impact and Nutrition Comparison

Article author photo Ani Harutyunyan by Ani Harutyunyan | Last updated on February 08, 2023
Medically reviewed by Igor Bussel Article author photo Igor Bussel
Grouper fish
vs
Mahimahi

Summary

Grouper and mahi mahi have many differences in nutritional content. Grouper is higher in protein, fat, vitamin B1, and calories. Mahi mahi contains more cholesterol, vitamin A, and fewer calories. Two species promote heart health.

Introduction

Grouper and mahi mahi are two of the most famous fishes in the world. In this article, we will compare these species, focusing on their nutritional composition and health impact and showing their actual differences.

Actual differences

Grouper (1) is a freshwater fish from the Serranidae family. This fish is usually widespread in the Gulf of Mexico and the coasts of South America. Grouper has a mild, a bit sweet taste. Grouper has a broader range of cooking methods: it is usually consumed in baked, broiled, fried, grilled, or steamed forms.

Mahi mahi (2), a predatory fish with striking yellow or green coloring, is primarily found in Hawaii. In contrast to grouper, mahi mahi has a flavor that is not fishy. Typically, it is fried with spices, herbs, and lemon. The fish is found in the Caribbean Sea and the Gulf of Mexico. However, it is offered and accessible everywhere.

Nutrition

Here we will discuss the macronutrient, mineral, and vitamin composition of grouper and mahi mahi. Both of them do not provide any amounts of carbs.

Macronutrient Comparison

Macronutrient breakdown side-by-side comparison
25% 73%
Protein: 24.84 g
Fats: 1.3 g
Carbs: 0 g
Water: 73.36 g
Other: 0.5 g
24% 71% 4%
Protein: 23.72 g
Fats: 0.9 g
Carbs: 0 g
Water: 71.22 g
Other: 4.16 g
Contains more FatsFats +44.4%
Contains more OtherOther +732%
~equal in Protein ~23.72g
~equal in Carbs ~0g
~equal in Water ~71.22g

Protein

Mahi mahi is higher in protein than grouper. It provides 23.7g of protein per 100g, while the same amount of grouper has 19.4g.

Both contain many essential amino acids, such as lysine, histidine, and phenylalanine.

Fat

Grouper is higher in fats than mahi mahi. It is richer in both saturated and unsaturated fats. Grouper is an excellent source of omega-3 fatty acids.

Surprisingly, mahi mahi is 57mg higher in cholesterol than grouper.

Fat Type Comparison

Fat type breakdown side-by-side comparison
31% 28% 42%
Saturated Fat: Sat. Fat 0.299 g
Monounsaturated Fat: Mono. Fat 0.268 g
Polyunsaturated fat: Poly. Fat 0.403 g
40% 26% 35%
Saturated Fat: Sat. Fat 0.241 g
Monounsaturated Fat: Mono. Fat 0.155 g
Polyunsaturated fat: Poly. Fat 0.211 g
Contains more Mono. FatMonounsaturated Fat +72.9%
Contains more Poly. FatPolyunsaturated fat +91%
Contains less Sat. FatSaturated Fat -19.4%

Calories

Grouper and mahi mahi are classified as low-calorie foods. Due to its higher protein composition, mahi mahi provides more calories than grouper. It has 17 more calories per 100g serving.

Minerals

The winner in this section is mahi mahi.

Grouper provides more calcium and less sodium than mahi mahi. Mahi mahi contains more iron, phosphorus, and potassium. Mahi mahi is rich in mercury, while grouper is low in it.

Check the mineral comparison chart below for a visual representation of the distribution of minerals.

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 26% 6.3% 42% 43% 15% 14% 61% 6.9% 1.6% 255%
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 27% 5.7% 47% 54% 18% 16% 78% 15% 2.5% 255%
Contains less SodiumSodium -53.1%
Contains more PotassiumPotassium +12.2%
Contains more IronIron +27.2%
Contains more CopperCopper +17.8%
Contains more ZincZinc +15.7%
Contains more PhosphorusPhosphorus +28%
Contains more ManganeseManganese +58.3%
~equal in Magnesium ~38mg
~equal in Calcium ~19mg
~equal in Selenium ~46.8µg

Vitamins

In general, mahi mahi has a higher vitamin content. Grouper is richer in vitamins B1 and folate. Mahi mahi contains higher amounts of vitamin B12.

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% 9.9% 0% 0% 20% 1.4% 7.1% 52% 81% 86% 0% 7.5% 0%
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% 12% 0% 0% 5.8% 20% 139% 52% 107% 86% 0% 4.5% 0%
Contains more Vitamin B1Vitamin B1 +252.2%
Contains more FolateFolate +66.7%
Contains more Vitamin AVitamin A +26.1%
Contains more Vitamin B2Vitamin B2 +1316.7%
Contains more Vitamin B3Vitamin B3 +1849.9%
Contains more Vitamin B6Vitamin B6 +32%
~equal in Vitamin C ~0mg
~equal in Vitamin E ~mg
~equal in Vitamin D ~µg
~equal in Vitamin B5 ~0.865mg
~equal in Vitamin B12 ~0.69µg
~equal in Vitamin K ~µg
~equal in Choline ~mg

Health impact

Cardiovascular health

Grouper and mahi mahi consumption is connected to lower cardiovascular disease risk (3). This is due to omega-3 and omega-6 fatty acid composition. These two compounds are long-chain essential fatty acids that are not produced in the human organism. Hence we must get them with the food we eat. Research shows that the risk of heart disease increases when there is no balance between omega-6 and omega-3 fatty acid concentrations in the blood flow (4). Mahi mahi and grouper boost omega-3 levels in the bloodstream of those with higher omega-6 levels (5) (6).

Health risks

Mahi mahi and grouper are considered foods with moderate quantities of mercury. While this mineral is not harmful to healthy middle-aged persons, it can harm kids, teenagers, and pregnant women. (7). To minimize mercury poisoning, limit your fish intake.

Article author photo Ani Harutyunyan
Education: General Medicine at YSMU
Last updated: February 08, 2023
Medically reviewed by Igor Bussel

Infographic

Grouper fish vs Mahimahi infographic
Infographic link

Comparison summary table

Pay attention to the rightmost column. It displays the amounts side by side, giving a clearer understanding of the difference.
Grouper fish Mahimahi
Rich in minerals ok
Lower in Saturated Fat ok
Lower in Cholesterol ok
Lower in Sodium ok
Lower in Sugar Equal
Lower in Glycemic Index Equal
Lower in price Equal
Rich in vitamins Equal

All nutrients comparison - raw data values

Nutrient Grouper fish Mahimahi Opinion
Calories 118kcal 109kcal Grouper fish
Protein 24.84g 23.72g Grouper fish
Fats 1.3g 0.9g Grouper fish
Cholesterol 47mg 94mg Grouper fish
Magnesium 37mg 38mg Mahimahi
Calcium 21mg 19mg Grouper fish
Potassium 475mg 533mg Mahimahi
Iron 1.14mg 1.45mg Mahimahi
Copper 0.045mg 0.053mg Mahimahi
Zinc 0.51mg 0.59mg Mahimahi
Phosphorus 143mg 183mg Mahimahi
Sodium 53mg 113mg Grouper fish
Vitamin A 165IU 208IU Mahimahi
Vitamin A 50µg 62µg Mahimahi
Manganese 0.012mg 0.019mg Mahimahi
Selenium 46.8µg 46.8µg
Vitamin B1 0.081mg 0.023mg Grouper fish
Vitamin B2 0.006mg 0.085mg Mahimahi
Vitamin B3 0.381mg 7.429mg Mahimahi
Vitamin B5 0.87mg 0.865mg Grouper fish
Vitamin B6 0.35mg 0.462mg Mahimahi
Vitamin B12 0.69µg 0.69µg
Folate 10µg 6µg Grouper fish
Saturated Fat 0.299g 0.241g Mahimahi
Monounsaturated Fat 0.268g 0.155g Grouper fish
Polyunsaturated fat 0.403g 0.211g Grouper fish
Tryptophan 0.278mg 0.266mg Grouper fish
Threonine 1.089mg 1.04mg Grouper fish
Isoleucine 1.145mg 1.093mg Grouper fish
Leucine 2.019mg 1.928mg Grouper fish
Lysine 2.282mg 2.178mg Grouper fish
Methionine 0.735mg 0.702mg Grouper fish
Phenylalanine 0.97mg 0.926mg Grouper fish
Valine 1.28mg 1.222mg Grouper fish
Histidine 0.731mg 0.698mg Grouper fish
Omega-3 - EPA 0.035g 0.026g Grouper fish
Omega-3 - DHA 0.213g 0.113g Grouper fish
Omega-3 - DPA 0.017g 0.012g Grouper fish

Which food is preferable for your diet?

ok
ok
is better in case of low diet
Grouper fish Mahimahi
Low Calories diet ok
Low Fats diet ok
Low Carbs diet Equal
Low Glycemic Index diet Equal

People also compare

Vitamins & Minerals Daily Need Coverage Score

The summary scores indicate the extent to which this food can fulfill your daily vitamin and mineral requirements if you consume 3 servings, consisting of 100 grams of each (an approximation of 3 serving sizes).
Vitamins Daily Need Coverage Score
20%
Grouper fish
33%
Mahimahi
Minerals Daily Need Coverage Score
47%
Grouper fish
52%
Mahimahi

Comparison summary

Which food is richer in minerals?
Mahimahi
Mahimahi is relatively richer in minerals
Which food is lower in Saturated Fat?
Mahimahi
Mahimahi is lower in Saturated Fat (difference - 0.058g)
Which food is lower in Cholesterol?
Grouper fish
Grouper fish is lower in Cholesterol (difference - 47mg)
Which food contains less Sodium?
Grouper fish
Grouper fish contains less Sodium (difference - 60mg)
Which food contains less Sugar?
?
The foods are relatively equal in Sugar ( g)
Which food is lower in glycemic index?
?
The foods have equal glycemic indexes (0)
Which food is cheaper?
?
The foods are relatively equal in price ($)
Which food is richer in vitamins?
?
It cannot be stated which food is richer in vitamins. See the charts below for detailed information. See the charts below for detailed information. See the charts below for detailed information.

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. Grouper fish - https://fdc.nal.usda.gov/fdc-app.html#/food-details/171963/nutrients
  2. Mahimahi - https://fdc.nal.usda.gov/fdc-app.html#/food-details/171992/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.