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Tuna vs. Oysters — In-Depth Nutrition Comparison

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What are the differences between Tuna and Oysters?

  • Tuna is higher in Vitamin A RAE, Vitamin B3, Vitamin B6, Vitamin B1, and Phosphorus, however, Oysters is richer in Zinc, Copper, Vitamin B12, Iron, and Manganese.
  • Oysters's daily need coverage for Zinc is 708% more.
  • Oysters contains 29 times less Vitamin A RAE than Tuna. Tuna contains 757µg of Vitamin A RAE, while Oysters contains 26µg.

We used Fish, tuna, fresh, bluefin, cooked, dry heat and Mollusks, oyster, eastern, wild, cooked, moist heat types in this article.

Infographic

Tuna vs Oysters infographic
Infographic link

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.
Tuna
Tuna
5
:
5
Oysters
Oysters
Contains more Magnesium +82.9%
Contains more Phosphorus +68%
Contains more Potassium +132.4%
Contains less Sodium -69.9%
Contains more Selenium +18.5%
Contains more Calcium +1060%
Contains more Iron +603.1%
Contains more Zinc +10107.8%
Contains more Copper +5088.2%
Contains more Manganese +2855%
Tuna
Calcium Iron Magnesium Phosphorus Potassium Sodium Zinc Copper Manganese Selenium 3% 50% 46% 140% 29% 7% 22% 37% 3% 256%
Oysters
Calcium Iron Magnesium Phosphorus Potassium Sodium Zinc Copper Manganese Selenium 35% 346% 25% 84% 13% 22% 2144% 1903% 78% 216%
Contains more Magnesium +82.9%
Contains more Phosphorus +68%
Contains more Potassium +132.4%
Contains less Sodium -69.9%
Contains more Selenium +18.5%
Contains more Calcium +1060%
Contains more Iron +603.1%
Contains more Zinc +10107.8%
Contains more Copper +5088.2%
Contains more Manganese +2855%

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.
Tuna
Tuna
6
:
5
Oysters
Oysters
Contains more Vitamin A +2763.6%
Contains more Vitamin B1 +672.2%
Contains more Vitamin B2 +70%
Contains more Vitamin B3 +469.7%
Contains more Vitamin B5 +206.5%
Contains more Vitamin B6 +760.7%
Contains more Folate +600%
Contains more Vitamin B12 +60.8%
Tuna
Vitamin A Vitamin E Vitamin D Vitamin C Vitamin B1 Vitamin B2 Vitamin B3 Vitamin B5 Vitamin B6 Folate Vitamin B12 Vitamin K 152% 0% 0% 0% 70% 71% 198% 83% 122% 2% 1361% 0%
Oysters
Vitamin A Vitamin E Vitamin D Vitamin C Vitamin B1 Vitamin B2 Vitamin B3 Vitamin B5 Vitamin B6 Folate Vitamin B12 Vitamin K 6% 34% 0% 0% 9% 42% 35% 27% 15% 11% 2188% 5%
Contains more Vitamin A +2763.6%
Contains more Vitamin B1 +672.2%
Contains more Vitamin B2 +70%
Contains more Vitamin B3 +469.7%
Contains more Vitamin B5 +206.5%
Contains more Vitamin B6 +760.7%
Contains more Folate +600%
Contains more Vitamin B12 +60.8%

Macronutrient Comparison

Macronutrient breakdown side-by-side comparison
Tuna
Tuna
3
:
2
Oysters
Oysters
Contains more Protein +161.9%
Contains more Fats +83.6%
Contains more Other +210.5%
Contains more Carbs +∞%
Contains more Water +32.3%
Tuna
30% 6% 59% 5%
Protein: 29.91 g
Fats: 6.28 g
Carbs: 0 g
Water: 59.09 g
Other: 4.72 g
Oysters
11% 3% 5% 78%
Protein: 11.42 g
Fats: 3.42 g
Carbs: 5.45 g
Water: 78.19 g
Other: 1.52 g
Contains more Protein +161.9%
Contains more Fats +83.6%
Contains more Other +210.5%
Contains more Carbs +∞%
Contains more Water +32.3%

Fat Type Comparison

Fat type breakdown side-by-side comparison
Tuna
Tuna
2
:
1
Oysters
Oysters
Contains more Monounsaturated Fat +305.7%
Contains more Polyunsaturated fat +74.6%
Contains less Saturated Fat -41.2%
Tuna
29% 37% 33%
Saturated Fat: 1.612 g
Monounsaturated Fat: 2.053 g
Polyunsaturated fat: 1.844 g
Oysters
38% 20% 42%
Saturated Fat: 0.948 g
Monounsaturated Fat: 0.506 g
Polyunsaturated fat: 1.056 g
Contains more Monounsaturated Fat +305.7%
Contains more Polyunsaturated fat +74.6%
Contains less Saturated Fat -41.2%

Comparison summary table

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

All nutrients comparison - raw data values

Nutrient Tuna Oysters Opinion
Net carbs 0g 5.45g Oysters
Protein 29.91g 11.42g Tuna
Fats 6.28g 3.42g Tuna
Carbs 0g 5.45g Oysters
Calories 184kcal 102kcal Tuna
Starch 0.9g Oysters
Sugar 1.23g Tuna
Calcium 10mg 116mg Oysters
Iron 1.31mg 9.21mg Oysters
Magnesium 64mg 35mg Tuna
Phosphorus 326mg 194mg Tuna
Potassium 323mg 139mg Tuna
Sodium 50mg 166mg Tuna
Zinc 0.77mg 78.6mg Oysters
Copper 0.11mg 5.707mg Oysters
Manganese 0.02mg 0.591mg Oysters
Selenium 46.8µg 39.5µg Tuna
Vitamin A 2520IU 88IU Tuna
Vitamin A RAE 757µg 26µg Tuna
Vitamin E 1.7mg Oysters
Vitamin D 2IU Oysters
Vitamin B1 0.278mg 0.036mg Tuna
Vitamin B2 0.306mg 0.18mg Tuna
Vitamin B3 10.54mg 1.85mg Tuna
Vitamin B5 1.37mg 0.447mg Tuna
Vitamin B6 0.525mg 0.061mg Tuna
Folate 2µg 14µg Oysters
Vitamin B12 10.88µg 17.5µg Oysters
Vitamin K 2µg Oysters
Tryptophan 0.335mg 0.138mg Tuna
Threonine 1.311mg 0.046mg Tuna
Isoleucine 1.378mg 0.459mg Tuna
Leucine 2.431mg 0.716mg Tuna
Lysine 2.747mg 0.762mg Tuna
Methionine 0.885mg 0.257mg Tuna
Phenylalanine 1.168mg 0.413mg Tuna
Valine 1.541mg 0.523mg Tuna
Histidine 0.88mg 0.22mg Tuna
Cholesterol 49mg 79mg Tuna
Trans Fat 0.068g Tuna
Saturated Fat 1.612g 0.948g Oysters
Omega-3 - DHA 1.141g 0.271g Tuna
Omega-3 - EPA 0.363g 0.353g Tuna
Omega-3 - DPA 0.16g 0.02g Tuna
Monounsaturated Fat 2.053g 0.506g Tuna
Polyunsaturated fat 1.844g 1.056g Tuna
Omega-6 - Eicosadienoic acid 0.007g Oysters
Omega-6 - Linoleic acid 0.061g Oysters
Omega-6 - Gamma-linoleic acid 0.004g Oysters
Omega-3 - ALA 0.163g Oysters
Omega-3 - Eicosatrienoic acid 0.004g Oysters
Omega-6 - Dihomo-gamma-linoleic acid 0.007g Oysters

Which food is preferable for your diet?

ok
ok
is better in case of low diet
Tuna Oysters
Low Fats diet ok
Low Carbs diet ok
Low Calories diet ok
Low Glycemic Index diet Equal

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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
171%
Tuna
197%
Oysters
Minerals Daily Need Coverage Score
59%
Tuna
486%
Oysters

Comparison summary

Which food is lower in Sugar?
Tuna
Tuna is lower in Sugar (difference - 1.23g)
Which food contains less Sodium?
Tuna
Tuna contains less Sodium (difference - 116mg)
Which food is lower in Cholesterol?
Tuna
Tuna is lower in Cholesterol (difference - 30mg)
Which food is lower in Saturated Fat?
Oysters
Oysters is lower in Saturated Fat (difference - 0.664g)
Which food is cheaper?
Oysters
Oysters is cheaper (difference - $4)
Which food is lower in glycemic index?
?
The foods have equal glycemic indexes (0)
Which food is richer in minerals?
?
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.
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

The source of all the nutrient values on the page (excluding the main article the sources for which are presented separately if present) is the USDA's FoodCentral. The exact links to the foods presented on this page can be found below.

  1. Tuna - https://fdc.nal.usda.gov/fdc-app.html#/food-details/173707/nutrients
  2. Oysters - https://fdc.nal.usda.gov/fdc-app.html#/food-details/171980/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.