12 Foods That Are Very High in Omega-3
You can get high amounts of omega-3 fats from fatty fish, algae, and several high-fat plant foods.
Here is a list of 12 foods that are very high in omega-3.
1. Mackerel (4,107 mg per serving)
Mackerel are small, fatty fish.
In Western countries, they are commonly smoked and eaten as whole fillets.
What's more, these fish are delicious and require little preparation.
Omega-3 content: 4,107 mg in one piece of salted mackerel, or 5,134 mg per 3.5 ounces (100 grams) (4)
2. Salmon (4,123 mg per serving)
Salmon is one of the most nutrient-dense foods on the planet.
Studies show that people who regularly eat fatty fish, such as salmon, have a lower risk of diseases like heart disease, dementia, and depression (7Trusted Source, 8Trusted Source, 9Trusted Source, 10Trusted Source).
Omega-3 content: 4,123 mg in half a fillet of cooked, farmed Atlantic salmon, or 2,260 mg in 3.5 ounces (100 grams) (5)
3. Cod Liver Oil (2,682 mg per serving)
Cod liver oil is more of a supplement than a food.
As the name implies, it is oil extracted from the livers of codfish.
Therefore, taking just one tablespoon of cod liver oil more than satisfies your need for three incredibly important nutrients.
However, don't take more than one tablespoon at a time, as too much vitamin A can be harmful.
Omega-3 content: 2,682 mg per tablespoon (11)
4. Herring (946 mg per serving)
Herring is a medium-sized, oily fish. It is often cold-smoked, pickled, or precooked, then sold as a canned snack.
Smoked herring is a popular breakfast food in countries like England, where it's served with eggs and called kippers.
Omega-3 content: 946 mg per medium fillet (40 grams) of kippered Atlantic herring, or 2,366 mg per 3.5 ounces (100 grams) (12)
5. Oysters (370 mg per serving)
Shellfish are among the most nutritious foods you can eat.
In fact, oysters contain more zinc than any other food on the planet. Just 6 raw eastern oysters (3 ounces or 85 grams) pack 293% of the RDI for zinc, 70% for copper, and 575% for vitamin B12 (13, 14).
Oysters can be eaten as an appetizer, snack, or whole meal. Raw oysters are a delicacy in many countries.
Omega-3 content: 370 mg in 6 raw, eastern oysters, or 435 mg per 3.5 ounces (100 grams) (13)
6. Sardines (2,205 mg per serving)
Sardines are very small, oily fish that are commonly eaten as a starter, snack, or delicacy.
They're highly nutritious, especially when eaten whole. They contain almost every nutrient your body needs.
Omega-3 content: 2,205 mg per cup (149 grams) of canned Atlantic sardines, or 1,480 mg per 3.5 ounces (100 grams) (15)
7. Anchovies (951 mg per serving)
Anchovies are tiny, oily fish often bought dried or canned.
Usually eaten in very small portions, anchovies can be rolled around capers, stuffed in olives, or used as pizza and salad toppings.
Because of their strong taste, they are also used to flavor many dishes and sauces, including Worcestershire sauce, remoulade, and Caesar dressing.
Omega-3 content: 951 mg per can (2 ounces, or 45 grams) of canned European anchovies, or 2,113 mg per 3.5 ounces (100 grams) (16)
8. Caviar (1,086 mg per serving)
Caviar consists of fish eggs, or roe.
Widely regarded as a luxurious food item, caviar is most often used in small quantities as a starter, taster, or garnish.
Omega-3 content: 1,086 mg per tablespoon (14.3 grams), or 6,786 mg per 3.5 ounces (100 grams) (17)
9. Flax Seeds (2,350 mg per serving)
Flax seeds are small brown or yellow seeds. They are often ground, milled, or used to make oil.
These seeds are by far the richest whole-food source of the omega-3 fat alpha-linolenic acid (ALA). Therefore, flaxseed oil is often used as an omega-3 supplement.
Flax seeds are also a good source of in fiber, magnesium, and other nutrients. They have a great omega-6 to omega-3 ratio compared with most oily plant seeds (18, 19, 20Trusted Source, 21Trusted Source).
10. Chia Seeds (5,060 mg per serving)
A standard 1-ounce (28-gram) serving of chia seeds contains 5 grams of protein, including all eight essential amino acids.
Omega-3 content: 5,060 mg per ounce (28 grams) (22)
11. Walnuts (2,570 mg per serving)
Make sure not to remove the skin, as it packs most of walnuts' phenol antioxidants, which offer important health benefits.
Omega-3 content: 2,570 mg per ounce (28 grams), or about 14 walnut halves (23)
12. Soybeans (1,241 mg per serving)
Soybeans are a good source of fiber and vegetable protein.
They are also a good source of other nutrients, including riboflavin, folate, vitamin K, magnesium, and potassium (24).
Omega-3 content: 670 mg in a 1/2 cup (47 grams) of dry roasted soybeans, or 1,443 mg per 3.5 ounces (100 grams) (24)
13. Other Foods?
Keep in mind that sections 1–8 discuss foods that contain the omega-3 fats EPA and DHA, which are found in some animal foods, seafood, and algae.
Conversely, sections 9–12 handle foods that provide the omega-3 fat ALA, which is inferior to the other two.
Although not as high in omega-3 as the foods above, many other foods contain decent amounts.
These include pastured eggs, omega-3-enriched eggs, meats and dairy products from grass-fed animals, hemp seeds, and vegetables like spinach, Brussels sprouts, and purslane.
The Bottom Line
As you can see, it's relatively easy to obtain plenty of omega-3s from whole foods.
Omega-3s provide numerous health benefits, such as fighting inflammation and heart disease.
However, if you don't eat many of these foods and think you may be lacking in omega-3s, consider taking omega-3 supplements.
Reposted with permission from our media associate Healthline.
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When hurricanes and other extreme storms unleash downpours like Tropical Storm Beta has been doing in the South, the floodwater doesn't always stay within the government's flood risk zones.
New research suggests that nearly twice as many properties are at risk from a 100-year flood today than the Federal Emergency Management Agency's flood maps indicate.
Flooding Outside the Zones<p>About <a href="https://furmancenter.org/files/Floodplain_PopulationBrief_12DEC2017.pdf" target="_blank">15 million</a> Americans live in FEMA's current 100-year flood zones. The designation warns them that their properties face a 1% risk of flooding in any given year. They must obtain flood insurance if they want a federally ensured loan – insurance that helps them recover from flooding.</p><p>In Greater Houston, however, <a href="https://doi.org/10.1111/j.1539-6924.2012.01840.x" target="_blank">47% of claims</a> made to FEMA across three decades before Hurricane Harvey were outside of the 100-year flood zones. Harris County, recognizing that FEMA flood maps don't capture the full risk, now <a href="https://www.hcfcd.org/floodinsurance" target="_blank" rel="noopener noreferrer">recommends that every household</a> in Houston and the rest of the county have flood insurance.</p><p>New risk models point to a similar conclusion: Flood risk in these areas outstrips expectations in the current FEMA flood maps.</p><p>One of those models, from the <a href="https://firststreet.org/flood-lab/research/2020-national-flood-risk-assessment-highlights/" target="_blank">First Street Foundation</a>, estimates that the number of properties at risk in a 100-year storm is 1.7 times higher than the FEMA maps suggest. Other <a href="https://doi.org/10.1088/1748-9326/aaac65" target="_blank" rel="noopener noreferrer">researchers</a> find an even higher margin, with 2.6 to 3.1 times more people exposed to serious flooding in a 100-year storm than FEMA estimates.</p>
What FEMA’s Flood Maps Miss<p>Understanding why areas outside the 100-year flood zones are flooding more often than the FEMA maps suggest involves larger social and environmental issues. Three reasons stand out.</p><p>First, some places rely on relatively old FEMA maps that don't account for recent urbanization.</p><p>Urbanization matters because impervious surfaces – think pavement and buildings – are not effective sponges like natural landscapes can be. Moreover, the process for updating floodplain maps is locally variable and can take years to complete. Famously, New York City was updating its maps when Hurricane Sandy hit in 2012 but hadn't finished, meaning flood maps in effect <a href="https://projects.propublica.org/nyc-flood/" target="_blank">were from 1983</a>. FEMA is required to assess whether updates are needed every five years, but the <a href="https://www.fema.gov/cis/nation.html" target="_blank" rel="noopener noreferrer">majority of maps</a> <a href="https://www.oig.dhs.gov/sites/default/files/assets/2017/OIG-17-110-Sep17.pdf" target="_blank" rel="noopener noreferrer">are older</a>.</p><p>Second, binary thinking can lead people to an underaccounting of risk, and that can mean communities fail to take steps that could protect a neighborhood from flooding. The logic goes: if I'm not in the 100-year floodplain, then I'm not at risk. Risk perception <a href="https://doi.org/10.1088/1748-9326/ab195a" target="_blank" rel="noopener noreferrer">research</a> backs this up. FEMA-delineated flood zones are the major factor shaping flood mitigation behaviors.</p><p>Third, the era of climate change scuttles conventional assumptions.</p><p>As the planet warms, extreme storms are becoming <a href="https://nca2018.globalchange.gov/" target="_blank">more common and severe</a>. If greenhouse gas emissions continue to increase at a high rate, computer models suggest that the chances of a severe storm dropping 20 inches of rain on Texas in any given year will increase from about 1% at the end of the last century to 18% at the end of this one, a chance of <a href="https://doi.org/10.1073/pnas.1716222114" target="_blank" rel="noopener noreferrer">once every 5.5 years</a>. So far, <a href="https://www.rstreet.org/wp-content/uploads/2020/02/195.pdf" target="_blank" rel="noopener noreferrer">FEMA hasn't taken into account the impact climate change is having</a> on extreme weather and sea level rise.</p>
Racial Disparities in Flooding Outside the Zones<p>So, who is at risk?</p><p>Years of research and evidence from storms have highlighted social inequalities in areas with a high risk of flooding. But most local governments have less understanding of the social and demographic composition of communities that experience flood impacts outside of flood zones.</p><p>In analyzing the damage from Hurricane Harvey in the Houston area, I found that <a href="https://doi.org/10.1088/1748-9326/aba0fe" target="_blank">Black and Hispanic residents disproportionately experienced flooding</a> in areas beyond FEMA's 100-year flood zones.</p><p>With the majority of flooding from Hurricane Harvey occurring outside of 100-year flood zones, this meant that the overall impact of Harvey was racially unequal too.</p><p>Research into where flooding occurs in Baltimore, Chicago and Phoenix points to some of the potential causes. <a href="https://www.nap.edu/read/25381/chapter/4#16" target="_blank" rel="noopener noreferrer">In Baltimore and Chicago</a>, for example, aging storm and sewer infrastructure, poor construction and insufficient efforts to mitigate flooding are part of the flooding problem in some predominantly Black neighborhoods.</p>
What Can Be Done About It<p>Better accounting for those three reasons could substantively improve risk assessments and help cities prioritize infrastructure improvements and flood mitigation projects in these at-risk neighborhoods.</p><p>For example, First Street Foundation's risk maps account for <a href="https://firststreet.org/flood-lab/research/flood-model-methodology_overview/" target="_blank">climate change</a> and present <a href="https://floodfactor.com/" target="_blank" rel="noopener noreferrer">ratings</a> on a scale from 1 to 10. FEMA, which works with communities to update flood maps, is <a href="https://www.fema.gov/media-library-data/1521054297905-ca85d066dddb84c975b165db653c9049/TMAC_2017_Annual_Report_Final508(v8)_03-12-2018.pdf" target="_blank" rel="noopener noreferrer">exploring rating systems</a>. And the National Academies of Sciences, Engineering and Medicine recently <a href="https://www.nationalacademies.org/news/2019/03/new-report-calls-for-different-approaches-to-predict-and-understand-urban-flooding" target="_blank" rel="noopener noreferrer">called for a new generation of flood maps</a> that takes climate change into account.</p><p>Including recent urbanization in those assessments will matter too, especially in fast-growing cities like Houston, where <a href="https://authors.elsevier.com/a/1boBRyDvMFW6W" target="_blank" rel="noopener noreferrer">386 new square miles</a> of impervious surfaces were created in the last 20 years. That's greater than the land area of New York City. New construction in one area can also <a href="https://scalawagmagazine.org/2018/01/city-in-a-swamp-as-houston-booms-its-flood-problems-are-only-getting-worse/" target="_blank" rel="noopener noreferrer">impact older neighborhoods downhill</a> during a flood, as some Houston communities discovered in Hurricane Harvey.</p><p>Improving risk assessments is needed not just to better prepare communities for major flood events, but also to prevent racial inequalities – in housing and beyond – from <a href="https://www.npr.org/2019/03/05/688786177/how-federal-disaster-money-favors-the-rich" target="_blank" rel="noopener noreferrer">growing</a> after the unequal impacts of disasters.</p>
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