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Prostate Supplements (Saw Palmetto and Beta-Sitosterol)

Read our review to find the best prostate supplements with saw palmetto and beta-sitosterol, evidence for using for benign prostatic hyperplasia, or BPH, safety, side effects, drug interactions and more. Find out which ones passed our test and why.

Prostate Supplements (Saw Palmetto and Beta-Sitosterol) Review

CL Answers (17)

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Recalls & Warnings (25)

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Clinical Updates (15)

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3/20/2018

Saw Palmetto for Prostate?

Saw palmetto extract was once popular for reducing symptoms of prostate enlargement, but studies subsequently failed to find a benefit. A recent study assessed whether it could boost the effectiveness of conventional medical treatment. Get the results in the What It Does section of the Saw Palmetto Supplements Review.
8/03/2019

Saw Palmetto for Prostate?

A recent clinical study is the latest to evaluate the potential benefit of saw palmetto in reducing symptoms of benign prostatic hypertrophy (BPH) in men. Find out what this, and previous studies, have shown in the What It Does section of the Prostate Supplements Review. Also see our Top Picks for saw palmetto and beta-sitosterol supplements.
11/09/2021

Saw Palmetto Concern

Does saw palmetto cause sexual dysfunction? Get the details in the updated Concerns and Cautions section of our Prostate Supplements Review.
10/04/2011

Saw Palmetto May Not Work

It's used by many men hoping to reduce urinary symptoms caused by benign growth of the prostate, or BPH, but a new, well-designed study suggests that it doesn't work. Some other recent research suggest the same. Even when doubling and tripling the standard dose, the high-quality saw palmetto extract used in the new study failed to provide benefit.

What should you do? You may want to consider a different supplement -- beta-sitosterol, a phytosterol. The evidence remains fairly good for beta-sitosterol. To find out more about saw palmetto, beta-sitosterol, and the supplements we have tested, see the Prostate Supplements ReviewMore >>
5/06/2017

Trouble Reported With Saw Palmetto

A 64 year-old man developed pancreatitis and heart block (dangerously slow heart rate) after supplementing with saw palmetto, according to a recent report. For details, see the "Cautions and Concerns" section of the Prostate Supplements Review >>
1/08/2012

B-12 and Folic Acid for Memory

Small but significant improvements in short and long-term memory were found to occur in older people (aged 60 to 74) given modest daily amounts of vitamin B-12 and folic acid. But don't expect immediate results. Improvements were seen only after 2 years of supplementation. See the update in the B Vitamins Review for the dosage used, as well as our ratings of supplements with vitamin B-12 and folic acid.
7/16/2014

Fish Oil May Prevent Cognitive Decline

A study of older individuals found that cognitive function and brain volume (size) were better preserved among those who reported using fish oil supplements than those who did not. The effect, however, was only seen in certain groups of people. For more about the study, and our tests and comparisons of fish oil supplements, see the updated Fish Oil and Omega-3 Fatty Acid Supplements Review (Including Krill, Algae, Calamari, Green-lipped Mussel Oil) >> 
3/17/2018

High-Dose Vitamin D & Cholesterol

Giving high-dose vitamin D to people who are not deficient in it may backfire and increase cholesterol levels, as seen in a recent study. Get the details in the Concerns and Cautions section of the Vitamin D Supplements Review. (Also see our Top Picks among products).
6/29/2019

Fish Oil Heart Claim

You'll start seeing a new heart health claim on fish oil supplements as well as foods that provide the omega-3's EPA and DHA. While legal, the claim is a bit fishy. Get the details in the Fish Oil Supplements Review as well as the Canned Tuna and Salmon Review. Also see our Top Picks for fish oil supplements and canned fish.
1/11/2011

Insulin Sensitivity and Magnesium

A recent study found that magnesium supplementation improved fasting glucose levels in insulin insensitive, obese people. While a similar effect has been seen in magnesium deficient people, the new study found benefit in people who had normal magnesium levels. The research suggests that magnesium may help prevent the onset of type 2 diabetes in some people. See the Magnesium Supplements Review for the type and dose of magnesium used and more >>
7/05/2014

Dark Chocolate Improves Walking in Peripheral Artery Disease

A new, small study found that people with peripheral artery disease who consumed dark chocolate with a high cocoa content were able to walk further than they normally could. Consuming milk chocolate did not have this effect. The improvement was seen shortly after consuming just one dose. For more details, including dosage, as well as our tests and comparisons of cocoa supplements and chocolate, see the update to the Cocoa Powders, Extracts and Chocolate (Sources of Flavanols) Review >>   
7/04/2015

Fish Oil and Alzheimer's Disease

The evidence is mixed on whether fish oil can help people with Alzheimer's disease. A benefit was seen in a study reported last year, but a recently reported study found no benefit with fish oil combined with antioxidants. More details are found in the "What It Does" section of the Fish Oil and Omega-3 Fatty Acid Supplements Review >>
11/07/2015

Triglyceride-Lowering with a Probiotic

Studies with probiotics have demonstrated modest lowering of LDL ("bad") cholesterol, but the evidence has been mixed regarding triglycerides. A recent study in which a probiotic was added to a kefir drink showed a 17% reduction in triglycerides along with a modest reduction in LDL — effects not seen with the kefir alone. Details are found in the Probiotics and Kefirs Review >>
1/13/2013

Vitamin D and Knee Arthritis?

Can taking vitamin D reduce the pain and progression of osteoarthritis of the knee? A new study found no benefit for people who already had sufficient levels of vitamin D. In fact, these people needed more anti-inflammatory medication during the study than those given placebo. However, as seen in many other studies of vitamin D, people who entered the study deficient in vitamin D appeared to benefit from being given vitamin D, experiencing reduced pain. For more details, see the update in the Vitamin D Supplements Review, which includes our tests of vitamin D supplements. If you suffer from osteoarthritis of the knee or other joints, also read about glucosamine and chondroitin, as supplements with these ingredients may help. We have tested many of these products.
8/25/2013

Antioxidants: Too Much of a Good Thing?

A new, long-term study of Americans found the risk of dying over the course of the study (about 14 years) was lowest when antioxidant levels in the blood were above the lowest levels (the bottom 20% of the population). However, for people in the top 20% of blood levels for vitamins A and E, the risk of death increased compared to people with moderate levels. For selenium and beta-carotene, there was no significant difference in the death rate between moderate and high levels, although for vitamin C some additional benefit was seen at high, but not the highest, levels.
 
The results suggest that antioxidant supplements may be useful for those who are nutritionally deficient, but, as noted by the researchers, "beyond a certain threshold, higher levels do not lead to additional benefit, and may potentially be toxic." More details (including specific serum levels) are found in the linked updates to the following reviews, which include our test results and quality ratings of products:
 
 
  
  

News Releases (40)

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