Ingredient profile
Protoflow Saw Palmetto: What 84.5 mg Means for BPH Evidence
Protoflow saw palmetto is 84.5 mg of saw palmetto fruit in each 2-capsule serving. The large prostate trials used 320 mg of extract a day, and a review of 27 trials found little or no difference in urinary symptoms against placebo. The label amount is about a quarter of the trial dose, and no study has tested Protoflow.
Written by the Protoflow label deskUpdated
The label line
How much saw palmetto is in Protoflow?
Two capsules hold 84.5 mg of saw palmetto fruit. One capsule holds half of that.
Protoflow lists "Saw Palmetto (Fruit)" at 84.5 mg per serving, and a serving is two capsules. Over a 30-day bottle that is about 2.5 grams in all. It is one of 14 lines, and it makes up about 5% of the 1,619 mg total.
The label does not say whether the fruit is dried powder or an extract. It gives no fatty acid percentage and no extract ratio. That matters, because the trials below used standardized extracts.
The sales page puts saw palmetto among its eight named herbs and calls the whole formula "Protoflow 24/7/365 Prostate Support" (Protoflow sales page). The label makes no such claim for this line alone. See all 14 on the ingredients page.
Dose check
Is 84.5 mg of saw palmetto a studied dose?
No. The trials used 320 mg a day or more, so Protoflow holds about 26% of that.
The best-known trial gave men 160 mg of extract twice a day, 320 mg in all, for one year (Bent et al., NEJM 2006). A later NIH-funded trial stepped up from 320 mg to 640 mg and then 960 mg a day (Barry et al., JAMA 2011 (CAMUS)). Protoflow has 84.5 mg.
The math is simple: 84.5 divided by 320 is 0.26. Even the studied dose did not beat placebo, so a lower one gives little reason to expect more.
| Source | Daily amount | Length |
|---|---|---|
| Protoflow label | 84.5 mg of fruit | Per 2-capsule serving |
| Bent trial (Bent et al., NEJM 2006) | 320 mg of extract | 1 year, 225 men |
| CAMUS trial (Barry et al., JAMA 2011 (CAMUS)) | 320 to 960 mg of extract | 72 weeks, 369 men |
Trial results
Did large trials find saw palmetto helps urinary symptoms?
No. The big trials and the reviews found little or no benefit for BPH symptoms.
In the one-year trial, saw palmetto did not change the symptom score, urine flow, prostate size or PSA compared with placebo (Bent et al., NEJM 2006). In the NIH trial, the score fell 2.20 points on saw palmetto and 2.99 on placebo (Barry et al., JAMA 2011 (CAMUS)).
The 2023 Cochrane update pooled 27 trials with 4,656 people. At 3 to 6 months it found little to no difference in urinary symptoms, and the same at 12 to 17 months (Cochrane review, Franco 2023). NCCIH calls saw palmetto "probably not helpful" for BPH symptoms (NCCIH, Saw Palmetto).
These studies do not show harm at normal doses. They show that the herb did not do more than a dummy capsule for symptoms of an enlarged prostate. A weak stream or night trips to pee still need a doctor to find the cause (NIDDK, Prostate Enlargement (BPH)).
How long do trials run? Between 3 months and 72 weeks, mostly. If a benefit existed, those windows would likely have shown it. Compare this with the benefits page.
Fruit or extract
Is saw palmetto fruit powder the same as an extract?
No. An extract is concentrated from the berry. A fruit powder is the ground berry.
The trials above used extracts, so their doses are not a clean match to a fruit line. The label says only "Fruit", so we cannot convert 84.5 mg into extract terms.
That gap works against the product either way. If it is plain powder, the amount of active compounds is likely smaller than in 320 mg of extract. If it is an extract, it is still about a quarter of the studied amount.
Ask the order desk at +1 (651) 610-1515 for the extract ratio. We have not seen a published answer, and no lab report is public.
Protoflow: from $1.63 a day60 capsules a bottle · packs of 2, 3 or 6 · 60-day money-back guarantee
See packsSafety and PSA
Can saw palmetto affect a PSA result or interact with prostate medicines?
NCCIH says it does not appear to change PSA readings, and lists no specific drug interactions. Tell your doctor anyway.
Saw palmetto is generally well tolerated in studies lasting up to 3 years. Side effects are mild and uncommon: stomach upset, dizziness, headache (NCCIH, Saw Palmetto). In pregnancy or while breastfeeding, it may be unsafe.
PSA is a blood marker that BPH, prostatitis and infection can raise, and finasteride or dutasteride lower (NCI, PSA Test Fact Sheet). Saw palmetto itself does not appear to shift it (NCCIH, Saw Palmetto). Protoflow holds 13 other lines, so tell the doctor who orders your PSA test about the whole bottle.
Do not stop or cut tamsulosin, finasteride or any other prescribed medicine because you took Protoflow. Show your doctor the label first. Blood in the urine, fever with painful peeing, or being unable to pee needs care right away (NIDDK, Prostate Enlargement (BPH)).
Other lines in the formula carry bigger interaction flags. Read them under side effects.
Label profile
What does the label say about this ingredient?
One line, one amount, no blend.
The profile below is built straight from the Supplement Facts panel. It shows the amount, the Daily Value status and the research dose side by side.
| Name on the label | Saw Palmetto (Fruit) |
|---|---|
| What it is | Serenoa repens fruit |
| Group on this site | Prostate and other |
| Amount per 2 capsules | 84.5 mg per 2 capsules |
| Amount per capsule | about 42.2 mg |
| On the sales page's list of 8? | Yes |
| Amount used in research | 320 mg of extract a day in large prostate trials (up to 960 mg) |
| Strength of evidence | No better than placebo for BPH symptoms |
| Marketed or traditional use | Sold for prostate and urinary support |
| Main caution | Mild stomach upset, dizziness or headache; it does not appear to change PSA readings. |
Jump to the other ingredient pages here.
FAQ
Protoflow saw palmetto questions
01How much saw palmetto is in Protoflow?
Protoflow has 84.5 mg of saw palmetto fruit in each 2-capsule serving, so 42.25 mg per capsule. That is about 5% of the 1,619 mg serving. The label does not say if it is powder or extract, and gives no standardization.
02Is 84.5 mg of saw palmetto a studied dose?
No. Large prostate trials used 320 mg of extract a day, and one went up to 960 mg (Bent et al., NEJM 2006) (Barry et al., JAMA 2011 (CAMUS)). Protoflow is about 26% of the lowest trial dose. Even the higher doses did no better than placebo for urinary symptoms.
03Did large trials find saw palmetto helps urinary symptoms?
No. A one-year trial and an NIH-funded trial both found no benefit over placebo, and a Cochrane review of 27 trials found little or no difference (Cochrane review, Franco 2023). NCCIH calls it probably not helpful for BPH symptoms (NCCIH, Saw Palmetto).
04Is saw palmetto fruit powder the same as an extract?
No. An extract is concentrated, while fruit powder is the ground berry. The trials used extracts, and the Protoflow label says only Fruit. Ask the order desk for the form and ratio, since neither is printed.
05Can saw palmetto affect a PSA result?
Not by itself, according to NCCIH, which says it does not appear to affect PSA readings (NCCIH, Saw Palmetto). BPH, prostatitis and finasteride can change PSA (NCI, PSA Test Fact Sheet). Tell the doctor who orders the test that you take Protoflow.
06Does saw palmetto interact with prostate medicines?
NCCIH lists no specific drug interactions for saw palmetto (NCCIH, Saw Palmetto). Protoflow has 13 other lines, though, so tell your doctor before combining it with tamsulosin, finasteride or any prescribed medicine, and keep taking what you were prescribed.
07How long do trials give saw palmetto to show an effect?
Trials ran from about 3 months to 72 weeks. The Cochrane review looked at 3 to 6 months and 12 to 17 months and found little or no difference at either point (Cochrane review, Franco 2023). A trial of one year used 320 mg a day (Bent et al., NEJM 2006).
Who wrote this
Written and reviewed by
Pages built from the Protoflow label, the sales page and linked NIH, FDA, FTC, NHS and peer-reviewed sources.
Last updated . Learn about our editorial standards and how we check reviews. This website is run by Goprotoflow, a licensed U.S. retail desk for Protoflow, not by the manufacturer or by PhytoThrive Labs. We earn money when you buy through our order links.
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