什麼是DHA

What is magnesium docosahexaenoate (DHA)

Docosahexaenoic acid (DHA) is an omega-3 fatty acid found in cold-water, fatty fish, such as salmon. It is also found in fish oil supplements, as well as eicosapentaenoic acid (EPA). Vegan sources of DHA come from seaweed.

Omega-3 fatty acids are good for your heart, and your body needs DHA to keep your brain healthy. Babies need DHA, especially in the first 6 months of their lives, so that their brains, eyes, and nervous systems can develop properly. DHA is found in breast milk and is added to some infant formulas.

Our bodies naturally produce small amounts of DHA, but we must get the amount we need from food or supplements. Most people in the Western world do not consume enough omega-3 fatty acids in their diet.

Purpose

Attention deficit hyperactivity disorder (ADHD)

Because children need omega-3 fatty acids for their brains to develop properly, researchers studied whether fish oil could reduce ADHD symptoms. So far, the results have been mixed.

Frustration

While some studies suggest fish oil can reduce symptoms of depression, it's unclear whether DHA itself has the same effect. Other studies show that EPA can improve depression.

Heart disease

Fish oil appears to help improve outcomes for people who already have heart disease. It can also reduce the risk of heart disease. Omega-3 fatty acids in fish oil help lower triglycerides (fats in the blood), lower blood pressure, reduce the risk of blood clots, improve arterial health and reduce the amount of plaque in the arteries that can narrow the arteries and cause heart disease. disease disease. The American Heart Association recommends eating fish, especially fatty fish, at least 2 times a week. Fatty fish include salmon, herring, lake trout, sardines and albacore tuna. People who already have heart disease may need to take fish oil supplements in addition to adding more fish to their diet. Ask your doctor if fish oil supplements are right for you.

Infant development

DHA plays a vital role in the growth and development of the central nervous system and visual function in infants. Breastfed babies of healthy mothers should receive adequate DHA from breast milk.

Rheumatoid arthritis

Several small studies have found that fish oil may help reduce symptoms and inflammation associated with rheumatoid arthritis. However, it does not prevent joint damage from getting worse.

Menstrual pain

Taking fish oil regularly seems to reduce the pain of menstrual cramps (and not just during your period).

Raynaud's Syndrome

Several studies have shown that high doses (12 grams) of fish oil can reduce sensitivity to cold in the fingers and toes of people with Raynaud syndrome. Such high doses should only be taken under the supervision of a doctor.

Lupus

Preliminary research suggests that fish oil may reduce fatigue and joint pain associated with lupus.

Dietary sources

DHA is found in cold-water, fatty fish, including salmon, tuna (bluefin tuna has 5 times more DHA than other types of tuna), sardines, shellfish, and herring.

Some of these fish have very low levels of mercury. However, the U.S. Food and Drug Administration says eating a few servings of fish per week poses no risk to healthy people and provides many health benefits.

Women who are pregnant or planning to become pregnant should not eat king mackerel, shark, swordfish and tilefish. They should also eat no more than 6 ounces. White Albacore Tuna Weekly.

To ensure you are getting a fish oil supplement that is not contaminated with mercury, read labels carefully and check for purity, and ask your doctor to help you find the best quality DHA supplement.

If the mother is healthy, breastfed babies should get enough DHA from breast milk. Infant formula may or may not contain any DHA. Read labels carefully.

DHA is available as a supplement in two common forms:

Fish oil capsules, which contain both DHA and EPA (eicosapentaenoic acid), another omega-3 fatty acid
DHA from algae, EPA-free
How to Take
Pediatrics

Mothers of breastfed infants should get enough DHA if they get enough in their diet. Some infant formulas also have added DHA.
Adults

Most studies used 1,000 to 2,500 mg of DHA per day.
Diet: 2 to 3 servings of fatty fish per week, equivalent to 1,250 mg of EPA and DHA per day.
Fish Oil Supplements: 3,000 to 4,000 mg of standardized fish oil daily. Read the label to check the amount of DHA and EPA, which differ from fish oil in milligrams. People who take blood thinners, such as warfarin (Coumadin), clopidogrel (Plavix), or aspirin, or who have hemophilia should talk to their doctor for a safe dose.
Pregnant women: Ask your doctor if DHA supplements are right for you, and only use products designed for pregnant women.
DHA Supplements from Algae: 200 mg per day
Some fish oil supplements also have added vitamin E to maintain freshness.

Precautionary measures

Fish oil capsules contain both DHA and EPA. EPA supplements may not be recommended for infants or young children

Review

All comments are moderated before being published

HealthyPIG Magazine

View all
哪些職業對健康影響最大?科學與現實的分析

哪些職業對健康影響最大?科學與現實的分析

在現代社會中,工作佔據了人們生命中相當大的一部分。然而,不同職業對健康的風險並不相同。一些工作性質或環境,會顯著增加慢性病、心理壓力、甚至縮短壽命的風險。以下從科學研究與醫學角度,探討幾類對健康損害較大的職業,並附上相關統計數據。

電擊槍的機制與對人體健康影響

電擊槍的機制與對人體健康影響

在現代執法中,警察常使用所謂「非致命性武器」(less-lethal weapons),其中最廣為人知的便是 電擊槍(Taser)。電擊槍的設計初衷是提供一種介於徒手制服與槍械之間的選擇,藉由暫時性電擊使嫌疑人失去行動能力,以降低致命暴力發生的風險。然而,電擊槍並非完全無害,背後涉及的電流機制與人體生理反應值得深入探討。

PD-(L)1/VEGF「三抗」:腫瘤免疫治療新方向

PD-(L)1/VEGF「三抗」:腫瘤免疫治療新方向

腫瘤治療的新挑戰 近十年來,免疫檢查點抑制劑(Immune Checkpoint Inhibitors, ICIs)改變咗癌症治療格局。當中 PD-1/PD-L1 抑制劑 已經成為多種腫瘤的一線或二線療法,而 VEGF 抑制劑 亦係抗血管生成治療嘅核心藥物。然而,臨床數據顯示,雖然 PD-(L...
疲勞駕駛的健康風險與新科技防護:REMONY 裝置的認證分析

疲勞駕駛的健康風險與新科技防護:REMONY 裝置的認證分析

疲勞駕駛一直是全球道路安全的重要議題。許多人將疲勞視為「只是累了」,但科學研究表明,當人處於極度疲倦時,大腦功能下降的程度可與酒精中毒相當。不僅如此,長時間駕駛還會對身體健康造成慢性負擔。隨著科技發展,越來越多可穿戴裝置被設計用來協助監測疲勞狀態,其中,日本 Medirom 公司開發的 REMONY 裝置近日獲得國土交通省(MLIT)認證,成為市場矚目的焦點。本文將先探討疲勞駕駛的健康風險,然後客觀分析 REMONY 裝置的技術特點與潛力。

腳跟為何會變黃乾裂?成因與護理全攻略

腳跟為何會變黃乾裂?成因與護理全攻略

腳跟皮膚為何容易出現問題? 腳跟係身體承受最大壓力嘅部位之一。每日行走、站立,腳跟長期摩擦同受壓,如果缺乏適當護理,就會導致角質層過度增厚、乾燥同龜裂。當角質層愈厚,皮膚顏色會慢慢變得偏黃,甚至暗啡。 造成腳跟黃、裂、脫皮的常見原因 角質層增厚長期行走或穿硬底鞋,令腳跟角質層積聚過多,顏色...
Wi-Fi 會唔會對人體有害?科學研究同日常生活影響全解析

Wi-Fi 會唔會對人體有害?科學研究同日常生活影響全解析

Wi-Fi 幾乎已經變成日常生活不可或缺嘅一部分。無論係屋企、公司、學校,甚至咖啡店同巴士,都有無線網絡覆蓋。但好多讀者都會擔心:「成日浸喺 Wi-Fi 入面,會唔會慢慢影響身體健康?會唔會致癌?會唔會令我失眠或者精神差?」 今篇文章會由淺入深,帶大家了解 Wi-Fi 嘅電磁波特性、科學研究結...
長時間保持一個姿勢,點解會痛、僵硬、麻痺?|久坐對身體嘅危害

長時間保持一個姿勢,點解會痛、僵硬、麻痺?|久坐對身體嘅危害

好多人每日要長時間坐喺辦公室、電腦前面,或者瞓覺時維持同一個姿勢。結果往往出現腰酸背痛、手腳麻痺,甚至覺得關節「鎖住」郁唔到。久坐傷身腳麻痺點解長時間坐姿影響健康,都係大家經常搜尋嘅問題。今次我哋就一齊睇下背後原因。

癌症如何擴散:從一個器官走到另一個器官的旅程

癌症如何擴散:從一個器官走到另一個器官的旅程

癌症最令人畏懼的地方,不單在於原發腫瘤本身,而是它能夠 轉移(Metastasis) —— 由原本的器官擴散至身體其他部位。事實上,大多數癌症致命的原因,並非來自腫瘤的「原居地」,而是因為它在其他重要器官(如腦、肝、骨、肺)形成了新的腫瘤。

腦癌種類全面介紹|常見類型與特徵

腦癌種類全面介紹|常見類型與特徵

腦癌(Brain Cancer)泛指源自腦部或蔓延至腦部的惡性腫瘤。臨床上可分為兩大類: 原發性腦腫瘤(Primary Brain Tumors):由腦部細胞本身變異而成。 繼發性腦腫瘤(Secondary / Metastatic Brain Tumors):由其他器官的癌細胞(如肺...