Health Benefits of Oysters

Health Benefits of Oysters

Oysters are one of the most popular seafood, but you have understood this food. So let’s refer to the article below to see how the benefits of oysters for health are!

1. Characteristics of Oysters

Oysters, also known as oysters, are mollusks in the bivalve mollusk group, related to oysters and clams.

The size of the oyster is relatively large, but the gray inside of the oyster seems to be smaller than its hard shell. In some cases, it was also discovered that oysters can reach a weight of up to 1.4kg and a width of 18cm as in Plymouth port (England).

According to the Guinness Book of Records, the largest oyster in the world today weighed 3.6kg with a length of 30.5 and a width of 14cm in the Chesapeake Bay ( Virginia, USA) in 1999.

Each female oyster can lay more than 3 million eggs, spawning most around April – October every year. In addition, some oysters, such as the species Ostrea edulis and Ostrea lurida, are hermaphrodites, meaning their genitalia contain both sperm and eggs. All oyster species have a lifespan of up to 30 years.

Choosing Oysters for a meal, or a party is an extremely quality choice, although the price is a bit high, the value it brings is great. You can also take advantage of discount vouchers, coupons when you go to seafood restaurants to save money.

2. Nutritional Value of Oysters

In the diet, every 100g of fresh oyster meat includes nutrients such as:

  • Energy: 51kcal
  • Water: 89.04g
  • Carbohydrates: 2.72g
  • Protein: 5.71g
  • Fat: 1.71g
  • Various vitamins: 0.85mg vitamin E, 0.925mg vitamin B3, 0.031mg vitamin B6,…
  • Many minerals: 59mg calcium, 4.61mg iron, 156mg potassium, 97mg phosphorus,…

It can be said that oysters contain many nutrients such as protein, healthy fats, vitamins, and minerals, but they do not contain many calories.

3. The Effect of Oysters

Supports Nervous System Health

Vitamin B12 found in oysters is an important nutrient for maintaining a healthy nervous system. It helps metabolism and blood cell formation easier, especially useful for the elderly.

In addition, oysters also contain selenium, which acts as a strong antioxidant, contributing to the prevention of cell damage caused by free radicals.

Boost Immune System Health

Oyster meat also contains several other minerals that are beneficial to the body’s immune system, such as:

  • Zinc: plays an important role in the immune system as well as metabolism and cell growth.
  • Vitamin D: also has the same effect as zinc and also helps in the growth and flexibility of the skeletal system.
  • Iron: is an essential mineral in the creation of hemoglobin and myoglobin so that the proteins carry oxygen around the body so that the body is healthy.

Support Weight Loss

Oysters are considered a rich source of protein (protein) and contain up to 9 essential amino acids for the body. Scientists have proven that a high-protein diet is more effective at creating satiety and promoting weight loss than a high-carb or low-fat diet.

In other words, foods rich in protein will stabilize hunger by increasing levels of hormones, to induce a feeling of fullness due to the presence of peptide YY and cholecystokinin (CCK).

Helps Control Blood Sugar

Consuming more protein in the body also helps control blood sugar levels, especially beneficial for people with diabetes.

For example, in a review of nine studies, a high-protein diet significantly reduced hemoglobin A1c levels in people with type 2 diabetes. Hemoglobin A1c is a marker of sugar status. in blood.

Moreover, in an analysis of 18 other studies, it was found that high protein consumption also significantly reduced mean cholesterol levels, which is considered a risk factor for heart disease in people with diabetes. type 2.

Supports Liver Health

Oysters are not only packed with vitamins but also contain an outstandingly powerful antioxidant compound called DHMBA (full name is 3.5-Dihydroxy-4-methoxybenzyl alcohol), which is beneficial for the liver and heart health.

DHMBA belongs to phenolic compounds, acts as a powerful antioxidant, 15 times more than Trolox (which is a synthetic form of vitamin E and is used to prevent oxidative stress).

Specifically, according to in vitro studies, it has been shown that: DHMBA can protect human liver cells from damage and destruction of liver cells due to the activity of oxidative stress. In addition, scientists also expect that adding DHMBA compounds will have more effects in the treatment and prevention of liver-related diseases shortly.

Support for Healthy Bones

Despite being low in calories, oysters contain many other minerals such as calcium, selenium, zinc, phosphorus, copper, and iron that all contribute to increased bone density and strength.

Good for the Brain

Thanks to the significant amount of vitamin B12 and omega-3, oysters become a portion of good food for brain development in children as well as improving brain function in adults.

Promotes Heart Health

Thanks to the anti-inflammatory properties of omega-3, oysters help reduce the risk of cardiovascular disease.

For example, in a study of 18,244 healthy men in China, it was found that the group of people who ate 200g of shellfish (including oysters) per week reduced the risk of dying from heart disease by about 59% compared to the group of people who ate less (only ate 50g) per week.

In addition, the results of other epidemiological studies have further demonstrated: DHMBA also reduces the oxidation of LDL (bad) cholesterol – a factor associated with atherosclerosis and also a cause of heart disease.

Without enough vitamin B12, the body tends to have increased levels of homocysteine ​​in the blood – a protein that increases the risk of cardiovascular disease.

Men’s Health Support

Oysters are famous for supporting men’s health, because of their significant zinc content.

Zinc is a nutrient that helps stabilize the male hormone testosterone. In other words, zinc compounds increase blood circulation, especially blood flow to the male sex organs, thereby increasing male fertility.


Thus, the above article has helped you better understand the health benefits of oysters. Hope you have more useful information. And don’t forget to smartly use discount codes, coupons when buying or eating oysters at restaurants during the holidays to enjoy preferential prices.