What are oyster sauce benefits and side effects? Is oyster sauce vegan? Gluten free? Acidic or alkaline? Low fodmap? Good for you? Healthy? Sustainable? Here are oyster sauce pros and cons: all the info on oyster sauce that every ethical consumer wants to know…

Food is something we consume every day and if you’re like me, you do all the research you can to make sure you don’t hurt yourself, the planet, animals or others when shopping. As an ethical consumer myself, I am giving you all the info I’ve found on oyster sauce benefits and side effects.
You are going to learn all about oyster sauce benefits and side effects. This will include oyster sauce benefits for your health and potential risks, oyster sauce water footprint and oyster sauce carbon footprint, oyster sauce sustainability, if oyster sauce are vegan or impact animals in other ways, and much more.
After learning if oyster sauce are good or bad for you, the environment, animals and human rights, you will be able to make the best choices you can the next time you buy food.
This post is all about oyster sauce benefits and side effects that every ethical consumer should know.
Oyster Sauce Side Effects and Benefits
Health
Oyster sauce side effects may include:
- risk of cancer (excessive amounts of two forms of chloropropanol chemicals)
- high blood pressure
- which increases your risk of stroke, heart and kidney disease (due to excessive salt)
- water weight gain (due to water retention caused by salt)
Additionally, oyster sauce is…
- Acidic 6.0 pH level once digested
- Often Not Gluten Free
- Common food allergen: CRUSTACEAN SHELLFISH, WHEAT
★★★★★
- The Complete Cookbook with Easy and Tasty Recipes for Vegan and Seafood Lovers.
- Learn How to Eat and Live in a Healthy and Sustainable Way.
- With Colored Quality Pictures!
Environment
Water footprint: unknown
Carbon footprint: likely high, 11.41 kg CO2e to produce 1 kilogram or 2.2 pounds of farmed, frozen oysters, a car driving equivalent of 26.75 miles or 43 kilometers
Destruction: high, oyster sauce production is relatively destructive, negatively impacts marine ecosystems, discarded fishing nets pollute oceans, fishing damages coral, sponges and poses severe threat to marine habitats
Oyster sauce is…
Animals
Kills: oysters, a type of mollusk and shellfish
Harms: oysters, a type of mollusk and shellfish, farmed fish spend their entire lives (up to two years) confined in tightly packed spaces, most farmed fish are predators and eat smaller fish, billions of wild fish must be caught in order to feed them, it can take several pounds of ocean fish to produce just one pound of farmed fish
Indirectly kills or harms: sea-life, such as dolphins, sea turtles, protected fish, whales, seabirds etc. known as “bycatch”, unwanted marine life that unintentionally get caught, hooked and entangled in fishing nets
Oyster sauce is…
- Not Vegan
- Harmful to wildlife and ecosystems
Laborers
Health and safety: hazardous, fishing workers are at risk of accident, injury, and death, reports show 20% of workers and almost 50% of trafficked victims have been injured on the job, injuries include cuts, broken bone, lost fingers, hands and limbs, head injuries, electrocutions, workers get caught in machinery, get thrown overboard, deaths are reported, boat decks are slippery and in constant motion, there can be hazardous machinery present
Living conditions: poor, fishing boats often lack toilets, intensive labor, rapid exhaustion, workers are held at sea and work against their will, they load catch onto bigger, commercial fishing boats in exchange for food and supplies, seafood caught illegally from slave worker boats gets mixed in with legal, commercial fishing boats in order to remain undetected, boats filled with trafficked migrants do not dock, sometimes for years, keeping slave workers unseen, trapped at sea, continuing forced labor and abuse, fishing industries around the world are responsible for systematic, illegal, fishing practices, human rights abuse, fishing workers are vulnerable to human trafficking and slave labor, in countries like Thailand (the third largest seafood exporter in the world), Burma, Indonesia, and Fiji seafood slavery is a major issue for migrant workers originally from Myanmar, Cambodia, Laos and Vietnam, seafood consumed in the United States is mostly from foreign sources
Wages: low, recruiters promise well paying jobs to poor, unskilled and vulnerable laborers, recruiters trick migrants into thinking they must work to pay off their debts, referred to as “debt peonage”, and little to no compensation for their work is given for long periods and maybe even years and are paid below the minimum wage
Oyster sauce…
Where do most oysters come from?
China is the world’s leading oyster producer, with 80% of total world production, followed by Korea, Japan, the USA and the EU.
Is oyster sauce healthy?
Oyster sauce does not have any cholesterol and does not have significant amount of vitamins and minerals, nor protein or fiber but is high in sodium.
Most oyster sauces available on the market contain added monosodium glutamate (MSG). Not good!
Furthermore, most seafood and seafood products nowadays are likened to “mercury sponges” so beware that any and all seafood products have a chance of containing mercury…which will never be listed on the label but should be!
Is oyster sauce alkaline or acidic?

Oyster sauce is acidic.
What is the pH level of oyster sauce?
Oysters have a 6.0 pH level once digested. Shellfish is an acidic food group.
When you eat food, it breaks down to an ash residue that can be neutral, acidic or alkaline. Minerals such as potassium, calcium, magnesium, sodium, zinc, silver, copper and iron produce an alkaline ash; whereas sulfur, phosphorus, chlorine and iodine, which are in meat, coffee, dairy and alcohol, leave an acid ash.
Going alkaline easier than ever with this: Acidic and Alkaline Foods List
Is oyster sauce gluten free?

No, oyster sauce typically contains gluten due to added wheat flour which is a thickener. There are gluten-free oyster some sauces available on the market but they are not common.
While celiac disease may not be as rampant as many marketing trends lead us to believe, you may have a gluten sensitivity…
Celiac and gluten sensitivity symptoms are similar and may include:
- recurring abdominal pain
- chronic diarrhea
- constipation
- tingling
- numbness in hands and feet
- chronic fatigue
- joint pain
- unexplained infertility
- low bone density (osteopenia or osteoporosis)
There are hundreds of potential symptoms, many of which are also symptoms of other conditions.
Going gluten free easier than ever with this: Gluten and Gluten Free Foods List
Is oyster sauce a common food allergen?

Yes, oyster sauce is a common food allergen: crustacean shellfish and wheat.
A group of the eight major allergenic foods, AKA the Big-8, include:
- milk
- eggs
- fish
- crustacean shellfish
- tree nuts
- peanuts
- wheat
- soybeans
These foods account for about 90% of all food allergies in the United States.
Severe food allergies can be life threatening. Following ingestion of a food allergen, a person with food allergies can experience a severe, life-threatening allergic reaction called anaphylaxis.
Persons may still be allergic to and have serious reactions to foods other than the eight foods identified by the law.
Be aware of common dietary restrictions and food allergens with this: The Big 8 Most Common Food Allergens List
Carbon footprint of oyster sauce?

Oyster sauce likely has a relatively high carbon footprint.
It takes around 11.41 kg CO2e to produce 1 kilogram or 2.2 pounds of farmed, frozen oysters, a car driving equivalent of 26.75 miles or 43 kilometers.
Food not only has a water footprint but also a carbon footprint, known as CO2e, which stands for carbon dioxide equivalent. Since carbon measurements are a bit more difficult to comprehend, it is common to equate CO2e to the distance which a car drives in miles or kilometers.
When calculating carbon emissions, some factors may include…
- farm equipment
- animal feed production
- hothouses (greenhouses)
- food processing
- packaging
- transport
- refrigeration
- freezing
- package waste and more
But that’s not all!
It’s best to keep the following in mind when grocery shopping:
- shopping locally reduces transportation emissions
- food without packaging reduces waste as well as the carbon footprint
- refrigerated and frozen foods increase carbon emissions
- seasonal foods reduce carbon emissions from hothouses (greenhouses)
- growing plant-based foods at home is the most environmentally sustainable method with zero carbon footprint
Find out how much carbon your food emits with this: Carbon Footprints of Foods and Ingredients List
Is oyster sauce sustainable?

No, oyster sauce production is unsustainable. Oyster sauce production is relatively destructive, negatively impacting marine ecosystems, which involve discarded fishing nets that pollute oceans, fishing that damages coral, sponges and poses and an overall severe threat to marine habitats.
Whether farmed or wild caught, the seafood industry is environmentally destructive due to its direct impact on decreasing marine populations, polluting waters and habitat destruction.
Fish farming, or aquafarming, is not a sustainable alternative. Not only do farmed fish need to be fed fish to eat (perpetuating a never-ending cycle of fishing) but waters become contaminated with antibiotics (to prevent disease that inevitably occurs with overcrowded fish confinements), pesticides, parasites and fish feces. The toxic water then spreads to waterways and oceans, polluting ecosystems and eventually killing off wild fish populations.
All of the aforementioned fishing practices occur in order to meet global demand. The obvious solution for protecting our Earth’s oceans and waterways, marine habitats, ecosystems and wildlife is for consumers to significantly reduce or eliminate their seafood demand entirely.
Read more about ‘What Makes Food Sustainable Or Unsustainable?’
Is oyster sauce vegan?

No, oyster sauce is not vegan. Oyster sauce is made from oysters, a type of marine animal, therefore making it an animal-derived food. A mollusk must be killed in order to produce oyster sauce.
Animals of factory farming are suffering. They live in horrific conditions that often include confinement, physical abuse and unnatural environments…so much so that they need to receive antibiotics to keep from getting ill or spreading disease. Growth hormones allow all kinds of animals to become fatter faster and live short lives.
Because we cannot see for ourselves how these animals live and what they endure does not mean it isn’t happening. The meat, poultry and dairy industries do everything they can to distance us from knowing how our food comes to be in order to keep us in the dark about what we support each time we buy animal derived products and byproducts.
Go vegan for animals!
It’s the best way to help animals and it’s not as difficult as you may think. Speak for animals with your actions, for they cannot speak at all.
Going vegan is easier than ever, at a glance with this: Vegan and Non Vegan Foods List
Does oyster sauce have human rights issues?

Yes, oyster fishing has some serious human rights issues.
Recruiters promise well paying jobs to poor, unskilled and vulnerable laborers, recruiters trick migrants into thinking they must work to pay off their debts, referred to as “debt peonage”, and little to no compensation for their work.
Fishing workers are at risk of accident, injury, and death. Injuries include cuts, broken bone, lost fingers, hands and limbs, head injuries, electrocutions. Workers get caught in machinery, get thrown overboard, deaths are reported, boat decks are slippery and in constant motion, there can be hazardous machinery present.
Fishing boats using such migrant workers often lack toilets. They must work for long hours, intensive labor, and experience rapid exhaustion. Workers are held at sea and work against their will. They load their catch onto bigger, commercial fishing boats in exchange for food and supplies. Seafood caught illegally from slave worker boats gets mixed in with legal, commercial fishing boats in order to remain undetected. The boats filled with trafficked migrants do not dock, sometimes for years on end, keeping the slave workers unseen and trapped at sea, continuing the forced labor and abuse.
Fishing industries around the world are responsible for systematic, illegal, fishing practices human rights abuse. Fishing workers are vulnerable to human trafficking and slave labor, in countries like Thailand (the third largest seafood exporter in the world), Burma, Indonesia, and Fiji. Seafood slavery is a major issue for migrant workers originally from Myanmar, Cambodia, Laos and Vietnam. Seafood in United States is mostly from foreign sources. Only 3% of fish and shellfish is from American territory. Many developed countries depend on imported seafood.
Be sure to read up on this list of ‘Foods You Should Always Buy Fair Trade‘
This post was all about oyster sauce side effects and benefits.
Sources:
Sauce, oyster, ready-to-serve – FoodData Central
World Wide Fund for Nature: Overfishing
Animal equality: 4 WAYS THE FISHING INDUSTRY IS DESTROYING THE PLANET
Human rights watch: Hidden Chains Rights Abuses and Forced Labor in Thailand’s Fishing Industry
International Labour Office: Caught at sea