前列腺健康與補充劑:了解事實
Prostate Health The prostate is a small, walnut-sized gland located below the bladder and surrounding the upper part of the urethra. Its main function is to produce the fluid that makes up most of semen.

There are three main things that can happen to the prostate, including:
  • Acute or chronic prostatitis. It is characterized by inflammation of the prostate. In some cases, prostatitis is caused by a bacterial infection, while other times the cause is unknown.
  • Benign prostatic hyperplasia (BPH). This non-cancerous enlargement of the prostate often causes lower urinary tract symptoms. This is one of the most common conditions in older men.
  • Prostate cancer. This form of cancer occurs in the prostate. It is the fourth leading cause of death in men worldwide.
While the early stages of prostate cancer may be asymptomatic, prostate problems are often accompanied by uncomfortable symptoms, such as:
  • Painful urination
  • Frequent need to urinate
  • Waking up in the middle of the night to urinate
  • pain during ejaculation
  • sexual dysfunction
  • Pain in the lower back, buttocks, or pelvic area

Supplements do not cure or treat prostate-related problems. However, many people claim that usually

Common supplement ingredients

Overall, the evidence supporting the effectiveness of supplements for prostate health is weak.

However, limited research suggests that certain ingredients may help relieve some of the uncomfortable symptoms associated with prostate problems.

Still, while some ingredients may make you feel more comfortable, others may not be effective or may be harmful to prostate health. Therefore, it is important to always talk to your healthcare provider before taking prostate supplements.

saw palmetto

Saw palmetto (Serenoa repens) is one of the most common ingredients in prostate health supplements. This is a palm tree native to the southeastern United States.

Specifically, saw palmetto berries and extract are used to help treat urinary tract symptoms associated with BPH. While the exact mechanism is unknown, it is believed that the anti-inflammatory effects of saw palmetto may play a role.

A study of 165 men with BPH found that taking 160 mg saw palmetto extract capsules four times daily for 12 weeks significantly improved prostate symptom scores, urinary flow rates, and quality of life scores.

Likewise, two older studies found improvements in urinary tract symptoms in men after taking daily saw palmetto supplements for 3-6 months.

Although promising, research on the effectiveness of saw palmetto on symptoms of benign prostatic hyperplasia in humans is limited. Additionally, research results on its effectiveness in treating BPH symptoms are mixed.

In a review of 17 studies spanning 4-72 weeks, saw palmetto was found to be no more effective than placebo in reducing urinary tract symptoms.

Furthermore, given the wide variation in dosage between studies, the optimal effective dose in patients with prostatic hyperplasia is unknown.

Also, keep in mind that most studies only include individuals diagnosed with BPH or other prostate problems, so it's unclear whether supplements help prevent prostate-related urinary tract symptoms in healthy adults.

Saw palmetto extract is also said to help prevent prostate cancer. Some evidence from test-tube and animal studies suggests that treatment with saw palmetto may help stop the spread and growth of prostate cancer cells.

However, these protective effects have not been confirmed in humans.

Overall, more research is needed to confirm the potential benefits and appropriate dosage of saw palmetto extract for prostate health.

Finally, while saw palmetto is generally considered safe, some people may not tolerate saw palmetto well. The most common side effects include headache, dizziness, nausea, constipation, and allergic reactions (8Trusted Source).

β-sitosterol

Beta-sitosterol is a common plant compound that belongs to a large class of substances called phytosterols. Phytosterols, produced by plants, are natural steroids that have been linked to a variety of health benefits, including lowering cholesterol.

Beta-sitosterol, in particular, has been shown to have potent antioxidant and anti-inflammatory properties.

Beta-sitosterol is also present in saw palmetto and has been studied for its potential to reduce inflammation associated with urinary tract symptoms of BPH and possibly prevent prostate cancer.

While limited test-tube and animal studies suggest beta-sitosterol has potential anticancer effects, more research is needed in humans.

A review study of dietary intake of plant sterols, including beta-sitosterol, and cancer risk found that overall intake of plant sterols was associated with a reduced risk of cancer.

However, it is uncertain whether plant sterol supplements have the same protective effect.

As for its role in BPH, one study of 91 men with symptomatic BPH compared the effects of beta-sitosterol-rich saw palmetto oil to saw palmetto oil alone.

The study observed that the concentrated oil was more effective at reducing the severity of urinary tract symptoms over 12 weeks than saw palmetto oil or placebo alone.

Likewise, while the results are encouraging, more research is needed on the effectiveness and optimal dosage of beta-sitosterol for prostate health.

pollen extract

Chronic prostatitis is a painful disease involving inflammation of the prostate. The disease is common in men under the age of 50 and is typically characterized by pelvic pain, sexual dysfunction, and painful urination and ejaculation.

While anti-inflammatory medications such as aspirin and ibuprofen are often used to help reduce inflammation and pain, there is growing interest in using pollen extract as a natural alternative to these medications.

A study of 65 patients with chronic prostatitis found that taking a capsule containing 1 gram of pollen extract and multiple B vitamins daily for 3 months significantly improved chronic prostatitis symptom scores.

Additionally, the pollen extract group had significantly lower levels of interleukin-8 (IL-8), a marker of inflammation that is higher in patients with chronic prostatitis.

Likewise, a review of 10 studies found that pollen extract significantly improved quality of life and symptom scores in individuals diagnosed with chronic prostatitis.

In particular, the most common pollen extract mixture used in these clinical trials was Graminex, which is a mixture of standardized extracts of ryegrass pollen (Secal cereal), corn pollen (Zea mays), and Timothy pollen (Phleum pratense).

Pygeum

Pygeum, an herbal extract obtained from the bark of the African cherry tree (Prunus africana), is another common ingredient in prostate supplements.

Limited test-tube and human studies suggest that pygeum extract can reduce inflammation associated with prostatitis and prevent the growth of cancer cells.

An earlier review looked at 18 studies looking at the benefits of pygeum supplementation in improving BPH-related symptoms compared with placebo.

The review found that pygeum supplementation significantly improved urinary flow measurements. Additionally, men who took pygeum were more than twice as likely to report improvements in overall symptoms.

However, it is important to note that the studies included in this review were smaller and shorter in duration. They also only compared pygeum to a placebo, so it's unclear how effective it is compared to standard medical interventions for treating benign prostatic hyperplasia.

While research on the effectiveness of pygeum supplements is limited, so far it appears to be safe, with minimal reported side effects.

nettle root

Nettle (Urtica dioica) root is a flowering plant often used in alternative medicine to help reduce pain and inflammation.

It has been shown to contain a variety of plant compounds that have potent antioxidant, anti-inflammatory, and antibacterial effects. It is commonly found in supplements used to treat urinary tract and bladder infections.

Limited animal and human studies indicate that it may also help reduce lower urinary tract symptoms associated with BPH.

A 6-month study of 558 adult men with BPH symptoms found that taking 120 mg of nettle root extract three times daily significantly improved lower urinary tract symptoms compared with placebo.

Additionally, test-tube and animal studies suggest nettle root may have anti-cancer effects. However, there are currently no studies supporting its ability to help prevent prostate cancer in humans.

Despite promising results, most research on nettle root extract for prostate health is limited and outdated. Larger studies are needed to evaluate its ability to reduce symptoms associated with benign prostatic hyperplasia, as well as its role in prostate cancer.

pumpkin seed oil

Pumpkin seed oil is another common ingredient in prostate supplements due to its high concentration of anti-inflammatory compounds.

By reducing inflammation, pumpkin seed oil is thought to help improve urinary tract symptoms associated with benign prostatic hyperplasia and chronic nonbacterial prostatitis.

In a study of 60 men with BPH, consuming 500 mg of oil-free hydroethanol pumpkin seed extract (equivalent to 350 mg of natural pumpkin seed oil extract, equivalent to 10 grams of pumpkin seeds) significantly reduced symptoms over 12 weeks ).

Specifically, taking pumpkin seed extract supplements reduced the International Prostate Symptom Score by an average of 30%.

Still, research on pumpkin seed oil's effectiveness and optimal dosage for treating prostate problems is generally limited.

Vitamin D

Vitamin D is an essential nutrient required for several important processes in the body, including immune function and bone health.

Several observational studies have also shown an association between low vitamin D levels and an increased risk of prostate cancer.

Still, research on whether vitamin D supplementation can prevent prostate cancer is inconclusive. In fact, one review even found that individuals with high circulating levels of vitamin D had an increased risk of prostate cancer.

While taking vitamin D supplements may benefit men who are deficient or have low vitamin D levels, high-dose supplementation is not currently recommended for prostate health.

zinc

Zinc is an essential mineral that plays an important role in cell growth and DNA repair. It is also found in large amounts in prostate tissue.

Interestingly, studies have found that zinc concentrations in the prostate are significantly lower in men with prostate cancer. Therefore, zinc is currently being studied for its potential role in preventing or slowing the growth of prostate cancer.

While some studies show that high zinc intake is associated with a reduced risk of advanced prostate cancer, other studies have found that it is associated with an increased risk of developing prostate cancer.

Overall, research on zinc and prostate cancer risk is inconclusive. Therefore, unless zinc supplements are prescribed by a healthcare provider, their use is not recommended to maintain prostate health.

Vitamin E

Vitamin E is another essential nutrient commonly found in prostate supplements.

Some earlier research suggests that vitamin E's antioxidant properties may protect against prostate cancer. However, recent research has linked vitamin E supplements to an increased risk of prostate cancer.

The Selenium and Vitamin E Cancer Prevention Trial was a large study in which 35,533 men were randomized to receive one of 4 treatments: 200 mcg of selenium per day, 400 IU of vitamin E per day, 400 IU of vitamin E plus 200 mcg of daily selenium, or placebo agent.

At the end of the study, men who took only vitamin E supplements had a significantly increased risk of developing prostate cancer by 17% over seven years.

Although research into the potential link between vitamin E and prostate cancer is ongoing, vitamin E supplementation is not currently recommended to reduce prostate cancer risk.

Men should avoid taking vitamin E supplements unless recommended by a health care provider.

selenium

Selenium is another essential mineral that has generated some controversy regarding its safety and effectiveness for prostate health.

In two large reviews, higher levels of selenium in the body were associated with a lower risk of prostate cancer, particularly among current and former smokers.

However, one study of 4,459 men found that taking selenium supplements after being diagnosed with prostate cancer was associated with an increased risk of prostate cancer mortality.

Another study also raised concerns about selenium supplements after it was found that supplementing with 200 micrograms of selenium per day increased the risk of prostate cancer in men who had high baseline selenium levels before taking the supplements.

Of note, however, selenium supplementation was not found to have a significant effect (either positive or negative) on prostate cancer risk in those with low baseline selenium levels.

Overall, more research is needed on the safety and effectiveness of selenium supplements, especially in people with higher baseline selenium levels and in people who have been diagnosed with prostate cancer.

Other common ingredients

In addition to the ingredients listed above, many other ingredients commonly found in prostate supplements include:

  • Lycopene. Research has found a weak link between high intakes of lycopene from tomato products and a reduced risk of prostate cancer. Still, more research is needed to confirm this effect of lycopene supplements.
  • Pomegranate extract. Test tube and animal studies show that pomegranate extract can slow the growth and spread of prostate cancer cells. However, human studies have not found significant improvements in cancer progression.
  • Green tea extract. High green tea intake has been linked to a lower risk of prostate cancer. Additionally, compounds in green tea may have anti-cancer properties. However, more conclusive research is needed.
  • Soy isoflavones. Limited animal and human observational studies have found that soy isoflavones may protect against prostate cancer, while other studies have found no significant effect. More high-quality human studies are needed .

While it is safe to obtain these ingredients through whole foods in your diet, more research is needed to confirm whether taking them in supplement form can have a beneficial and meaningful impact on your prostate health.

generalize

Many prostate supplements on the market claim to help support prostate health.

While certain ingredients can relieve urinary tract symptoms associated with prostate problems, research on their effectiveness is often limited.

Additionally, since some supplements may contain ingredients like vitamin E or zinc that may be harmful to prostate health, it's important to pay close attention to the ingredients in the products you buy.

Finally, because supplements do not treat or cure prostate problems, it is important to discuss any concerns you have about your prostate health with your medical provider. In particular, any signs of prostate cancer should be contacted by your doctor as soon as possible.

Review

All comments are moderated before being published

HealthyPIG Magazine

View all
經痛治療點解咁多年都冇突破?最新方法、本地現況與未來方向

經痛治療點解咁多年都冇突破?最新方法、本地現況與未來方向

幾乎一半嘅世界人口,每個月都要面對一次——月經同經痛。由青春期到更年期,呢段時間長達三十幾年。雖然經痛唔係致命疾病,但對好多女性嚟講,每個月都係一次痛苦嘅循環,影響工作、學業同生活質素 [1]。咁問題嚟喇:點解咁多年嚟,經痛治療仲係停留喺熱水袋同布洛芬(ibuprofen)?

Celecoxib(西樂葆)介紹 — 藥理、歷史背景與臨床試驗

Celecoxib(西樂葆)介紹 — 藥理、歷史背景與臨床試驗

1. 藥物簡介與臨床用途 Celecoxib(商品名 Celebrex 等)係一種選擇性 COX-2 抑制劑,屬非類固醇抗炎藥(NSAID)。COX-2 喺炎症反應中會誘導前列腺素生成,從而引發疼痛及發炎;而 Celecoxib 有效抑制 COX-2,但對 COX-1 影響較少,因此相對常見 ...
用粟粉醃肉有乜科學根據?揭開中菜「滑肉」嘅秘密

用粟粉醃肉有乜科學根據?揭開中菜「滑肉」嘅秘密

前言:點解中餐炒肉咁滑? 好多香港人炒肉嘅時候都會發現,餐廳啲雞絲牛柳炒出嚟特別滑溜、唔鞋口。呢個秘密,唔喺高級食材,而係一個平凡但強大嘅材料——粟粉(Cornstarch)。 呢種技巧叫做**「走油前醃」或「滑油醃肉法」(Velveting)**,係中餐獨有技術之一,主要靠粟粉、蛋白、調味料...
咩係三價鐵(Fe³⁺)同二價鐵(Fe²⁺)?

咩係三價鐵(Fe³⁺)同二價鐵(Fe²⁺)?

當我哋講「鐵質」時,唔止係話有冇攝取足夠,而係講緊鐵喺人體內唔同形態(尤其係三價鐵 Fe³⁺ 同二價鐵 Fe²⁺)點樣被吸收、轉化、運輸同儲存,呢啲都深深影響生物可利用率

全面解構低鐵原因、病理機制及影響

全面解構低鐵原因、病理機制及影響

低鐵唔止係營養問題,仲可能係身體慢性警號

鐵質(iron)係人體不可或缺嘅微量元素,主要負責攜帶氧氣嘅血紅素(hemoglobin)製造、能量代謝、免疫調節等。當鐵質長期攝取不足、吸收差、或失去過多,就會導致「低鐵」(iron deficiency)甚至發展成「缺鐵性貧血」(iron deficiency anemia)。本文將從臨床醫學與分子生理角度,深入探討低鐵嘅成因、病理機制、生物轉化過程,以及其對人體造成嘅連鎖影響。

Obefazimod(ABX464):潰瘍性結腸炎新藥研究、作用機制與研發進展

Obefazimod(ABX464):潰瘍性結腸炎新藥研究、作用機制與研發進展

Obefazimod(又名 ABX464)係由法國生物科技公司 Abivax 開發嘅口服小分子創新藥,目標治療慢性發炎性腸道疾病(IBD),特別係潰瘍性結腸炎(UC)同克羅恩氏病(CD)患者。

夢遺係唔係一定關性事?

夢遺係唔係一定關性事?

夢遺,即係在無意識之下於睡眠中射精,係一種常見於青春期男生甚至成年男性身上的自然生理現象。夢遺唔等於一定發生性夢,也唔等於有性慾過強。它與睡眠週期中快速動眼期(REM sleep)嘅勃起模式有關,亦可能反映正常的荷爾蒙波動及精液排出節律。 咩係夢遺? 夢遺(nocturnal emission...
唔凍都會打冷震?

唔凍都會打冷震?

打冷震(shivering)唔一定因為天氣凍,喺情緒波動、發燒初期、焦慮、緊張等情況下都可以出現。打冷震係一種由大腦下視丘控制嘅「非意識性肌肉收縮」,目的係維持或調節核心體溫或應對突發壓力。了解打冷震背後嘅神經與體溫調節原理,可以幫我哋區分「正常生理反應」同「潛在疾病警號」。 打冷震係乜回事...
一緊張就流手汗?

一緊張就流手汗?

手掌汗腺主要受交感神經系統控制。當人面對壓力、驚訝、社交場合等刺激時,大腦會啟動「戰鬥或逃跑反應」,促使手掌、腳底等部位產生明顯出汗。這種情況屬於精神性出汗,與溫度無直接關係,係身體對外在壓力的自然反應。