Oysters are a nutritional powerhouse, packed with essential vitamins and minerals, especially Vitamin B12, Zinc, and Copper, alongside Vitamin D, Iron, Selenium, and Omega-3s, supporting immunity, brain health, energy, and reproductive health, making them a natural wholefood supplement, with supplements available as capsules.
Oysters are a good source of other essential nutrients. These include vitamins A, E, and C, zinc, iron, calcium, selenium, and vitamin B12.
The oyster is power-packed with vitamins and minerals: Vitamins include: B12, D, A. As well as traces of C, E, B1, B2, B6, Niacin, Folate, and Pantothenic Acid. Minerals include: Zinc, Copper, Iron, Iodine, Selenium, and Calcium.
High in Vitamin B12
Amongst all the vitamins and nutrients that oysters have a high content of, vitamin B12 has to be atop the list. Vitamin B12 is especially important for your brain's health. Specifically, vitamin B12 is important for nervous system maintenance.
The illnesses of most concern from eating raw or undercooked oysters or clams are Vibrio infection, norovirus infection, and hepatitis A. See fact sheets for those diseases for more details. Symptoms can include vomiting, diarrhea, nausea, stomach pains, severe weakness.
Clams. Clams are the richest source of B12, with just 3 ounces providing over 4,000% of the daily value (DV). They are also high in iron and protein, making them a highly nutritious option.
The New York Times reported that eating oysters really can make you feel good. That's because they're a good source of vitamin B12, which studies suggest may help to reduce brain shrinkage. Similarly, oysters have an incredible amount of zinc which can benefit both the immune system and improve mood.
Rule of thumb is at least 4,000 years old. Foodie tradition dictates only eating wild oysters in months with the letter “r” – from September to April – to avoid watery shellfish, or worse, a nasty bout of food poisoning. Now, a new study suggests people have been following this practice for at least 4,000 years.
Oysters are great for your liver and can improve its functioning. This is mainly due to the high levels of selenium found in oysters. Selenium is a trace mineral that helps to protect your liver by reducing oxidative damage and inflammation.
Oysters (6.1mg per 6 medium oysters)
Oysters are packed with iron! So, if you're a seafood fan, then you're in luck. If you're low on Vitamin D, then you're hitting the jackpot because oysters are also a rich source of Vitamin D.
Oyster shell is often used in medical and cosmetic products as it truly is a treasure chest of skin-enhancing benefits. Oysters contain amino acids and vitamins B1, B2, B3, B5 and B12 that strengthen and nourish the skin.
Oysters are well-known for their aphrodisiac properties, but they also significantly benefit male hormonal health. They are rich in zinc, a mineral crucial for testosterone production. Zinc deficiency can lead to low testosterone levels, affecting energy, mood, and libido.
Steaming is an excellent way to cook oysters for two reasons — it is one of the healthiest methods, and it results in tender, juicy oysters in minutes.
Oysters are packed with zinc. One of these raw little fellows contains 5.5 mg, and since the RDA for adults is 8-11 mg, eating one could send you happily on your way to meeting your zinc requirements for the day. You could care less about zinc, I am guessing!
Oysters, which contain the minerals magnesium and zinc, may help you fall asleep and remain asleep, allowing you to enter the deep restorative period of sleep.
You are at risk of being infected by Vibrio vulnificus if you have any of the following conditions:
Raw oysters are high in a variety of vitamins, including high zinc levels. Research has uncovered a link between low zinc levels in men to erectile dysfunction disorder. If you are still not convinced yet, raw oysters are linked to increasing testosterone and progesterone levels in both men and women.
"[People] usually say it's like a drug," Rowan says. "There's no science on why it happens, but many people notice it. ... I feel it every time I eat oysters that are in good shape." One possible explanation for the buzz is zinc, a potent nutrient that occurs naturally in oysters.
Harvesting pearls can kill the oyster, and often does in industrial farming where the oyster's meat and shell are used, but it's possible to harvest pearls without killing them, allowing the oyster to produce more, though the process is stressful and many are still discarded. The key difference is between natural pearls (which kill the oyster when opened) and cultured pearls, where farmers surgically implant a nucleus, and the oyster can sometimes survive for multiple harvests if done carefully, or is killed for its meat/shell.
Many of us grew up hearing that it isn't safe to eat fresh oysters in months without an "R" in them, which is to say May, June, July, and August. Summer, in other words. Yet we see oysters year-round in markets and on menus, which begs the question of whether the old advice is still good advice.
The high levels of vitamin B12 in oysters are essential for brain health. This vitamin plays a crucial role in maintaining healthy nerve cells and aiding in the production of neurotransmitters.
B12 deficiency can trigger specific food cravings, most notably for meat, fish, or eggs, as the body seeks animal-based sources to replenish the vitamin, especially in those on vegetarian/vegan diets or older adults. While cravings for sugary or salty foods can also signal general B-vitamin issues, the distinct urge for protein-rich animal products is a key indicator, but professional testing is crucial for confirmation.
To quickly increase B12, focus on animal products (meat, fish, dairy, eggs) and fortified foods (cereals, plant milks, nutritional yeast), but for a significant deficiency or rapid boost, especially if dietary changes aren't enough, consult a doctor for high-dose supplements or B12 injections, as severe cases require medical intervention for proper absorption and treatment, note NHS and Healthline.