5-HTP有什麼好處和副作用?

Benefits of 5-HTP backed by science

Can aid weight loss by increasing feelings of satiety

5-HTP may increase feelings of fullness, causing you to eat less and lose weight.
Losing weight can increase the production of hormones that make you feel hungry. These persistent feelings of hunger can make weight loss unsustainable in the long run.
5-HTP may counteract these hunger-causing hormones, thereby suppressing your appetite and helping you lose weight.
In an earlier study, 20 people with diabetes were randomly assigned to receive 5-HTP or a placebo for two weeks. Results showed that patients receiving 5-HTP consumed approximately 421 fewer calories per day compared to the placebo group.
What's more, 5-HTP primarily inhibits carbohydrate caloric intake, which is associated with better blood sugar control.
Many other studies have also found that 5-HTP can increase satiety and aid weight loss in overweight or obese people.
Additionally, an older animal study found that 5-HTP can reduce excessive food intake due to stress.

May help treat depression by increasing serotonin levels

While the exact cause of depression is largely unknown, some researchers believe that a serotonin imbalance may affect your mood, leading to depression.
However, keep in mind that other studies have produced conflicting results on the relationship between low serotonin levels and depression.
Still, 5-HTP supplements are thought to treat depression by increasing serotonin levels.
For example, one study of 15 women found that combining 5-HTP with creatine improved symptoms of depression after 8 weeks.
Another small study in people with Parkinson's disease concluded that 5-HTP could help improve symptoms of depression compared with a placebo.

May improve symptoms of fibromyalgia

Supplementing with 5-HTP can improve symptoms of fibromyalgia, a disease characterized by muscle and joint pain, as well as extreme fatigue and brain fog, also known as "fibro fog."
The cause of fibromyalgia is unknown, but low serotonin levels have been linked to the disorder.
This leads researchers to believe that increasing serotonin levels may benefit fibromyalgia patients.
In fact, early evidence shows that 5-HTP can improve symptoms of fibromyalgia, including muscle pain, sleep problems, anxiety, and fatigue.
However, not enough research has been conducted to draw firm conclusions about the effectiveness of 5-HTP in improving fibromyalgia symptoms.

Helps reduce migraine frequency

5-HTP is said to help treat migraines, which are often accompanied by nausea or visual disturbances.
While its exact cause is debated, some researchers believe low serotonin levels may play a role.
An earlier study of 124 people compared the ability of 5-HTP and methiserg, a common migraine medication, to prevent migraines.
The study found that daily supplementation with 5-HTP for 6 months prevented or significantly reduced the number of migraine attacks in 71% of participants.
However, recent research on the effects of 5-HTP on migraines is limited.
However, many studies have shown that the potential antidepressant effects of 5-HTP are greater when used in combination with other substances or antidepressant medications than when used alone.
In addition, according to a recent meta-analysis, evidence supporting the use of 5-HTP to treat depression is limited and more high-quality placebo-controlled studies are needed.

5-HTP produces serotonin, which is converted into melatonin.

Melatonin plays an important role in regulating sleep. Its levels start to rise at night to promote sleep and fall in the morning to help wake you up.
Therefore, supplementing with 5-HTP can promote sleep by increasing the production of melatonin in the body.
A 2010 study showed that a combination of 5-HTP and gamma-aminobutyric acid (GABA) significantly shortened the time it took to fall asleep, increased sleep time, and improved sleep quality.
GABA is a chemical messenger that promotes relaxation. Combining it with 5-HTP may produce a synergistic effect.
In fact, multiple animal studies have shown that 5-HTP can improve sleep quality, especially when combined with GABA.
While these results are promising, the lack of human-based studies makes it difficult to recommend 5-HTP for improving sleep quality, especially when used alone.

side effect

When taken by mouth : 5-HTP is probably safe at doses up to 400 mg daily for one year. The most common side effects include heartburn, stomach pain, nausea, vomiting, diarrhea, drowsiness, sexual problems, and muscle problems. Large doses of 5-HTP, such as 6-10 grams per day, may not be safe. These doses have been associated with severe stomach problems and muscle cramps.

Some people who take 5-HTP develop a serious health condition called eosinophilic myalgia syndrome (EMS). Some believe EMS may be caused by accidental contamination in certain 5-HTP products. But there's not enough scientific evidence to say whether EMS is caused by 5-HTP, pollutants or other factors. 5-HTP should be used with caution until more information is learned.

Dosage and supplement instructions

As a supplement, 5-HTP comes from the seeds of an African shrub called Griffonia simplicifolia.

These supplements are different from L-tryptophan supplements, which may also increase serotonin levels.

L-tryptophan is an essential amino acid found in protein-rich foods such as dairy, poultry, meat, chickpeas, and soybeans.

5-HTP, on the other hand, is found in some foods, but in very small amounts.

There are no official recommendations on how much 5-HTP you should take. While more recent studies of higher quality are needed, these are the doses used in various studies:

Weight Management: 250–300 mg 30 minutes before each meal, or 750 mg daily Mood Enhancement: 100 mg twice daily Fibromyalgia Symptom Relief: 100 mg 3-4 times daily with meals for at least 2 Weekly migraine: 600 mg daily for at least 6 months Sleep aid: 100–300 mg before bed

Special Precautions and Warnings

When taken by mouth : 5-HTP is probably safe at doses up to 400 mg daily for one year. The most common side effects include heartburn, stomach pain, nausea, vomiting, diarrhea, drowsiness, sexual problems, and muscle problems. Large doses of 5-HTP, such as 6-10 grams per day, may not be safe. These doses have been associated with severe stomach problems and muscle cramps.

Some people who take 5-HTP develop a serious health condition called eosinophilic myalgia syndrome (EMS). Some believe EMS may be caused by accidental contamination in certain 5-HTP products. But there's not enough scientific evidence to say whether EMS is caused by 5-HTP, pollutants or other factors. 5-HTP should be used with caution until more information is learned. Pregnancy and Breastfeeding : There is not enough reliable information to know whether 5-HTP is safe to use while pregnant or breastfeeding . Stay safe and avoid using.

Children : 5-HTP is probably safe in children when taken by mouth at appropriate doses. In children under 12 years of age, a daily dose of 5 mg/kg of 5-HTP appears to be safe for up to 3 years.

Surgery : 5-HTP can affect a brain chemical called serotonin. Some medications used during surgery can also affect serotonin. Taking 5-HTP before surgery may cause too much serotonin in the brain and may cause serious side effects, including heart problems, tremors, and anxiety. Instruct patients to stop taking 5-HTP at least 2 weeks before surgery.

interactive?

Moderate interaction

Use this combination with caution

  • Carbidopa (Lodosyn) interacts with 5-HTP

    5-HTP affects the brain. Carbidopa also affects the brain. Taking 5-HTP with carbidopa increases the risk of serious side effects, including rapid speech, anxiety, and aggression.

  • Sedative drugs (central nervous system depressants) interact with 5-HTP

    5-HTP may cause drowsiness and slowed breathing. Some drugs called sedatives can also cause drowsiness and slowed breathing. Taking 5-HTP with sedating medications may cause breathing problems and/or excessive drowsiness.

  • Serotonin Drugs Interact with 5-HTP

    5-HTP may increase a brain chemical called serotonin. Some medications also have this effect. Taking 5-HTP with these medications may increase serotonin excessively. This can cause serious side effects, including heart disease, seizures, and vomiting.

dose

The most commonly used 5-HTP dosage for adults is 150-800 mg per day. Very large doses of 5-HTP, such as 6-10 grams per day, may cause serious side effects and should be avoided. Talk to your healthcare provider to find out the dose that is best for your specific situation.

Review

All comments are moderated before being published

HealthyPIG Magazine

View all
成年後懷疑自己有注意力不足過動症(ADHD),應該接受診斷嗎?

成年後懷疑自己有注意力不足過動症(ADHD),應該接受診斷嗎?

在過去,注意力不足過動症(Attention-Deficit/Hyperactivity Disorder, ADHD)多被視為「小孩的病」,很多成年人小時候從未被評估或診斷。直到近年社會對心理健康重視度提升,許多成人才開始懷疑,自己長期以來的專注困難、健忘、衝動或時間管理不良,可能與 ADHD 有關。這種「晚發現」的情況相當普遍,也引發了問題:成年後是否值得接受 ADHD 診斷?

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。