Mega Strength Beta Sitosterol 350 MG | GNC

Source Naturals® Mega Strength Beta Sitosterol 350 MG


Item # 214414

Product Information



Mega Strength Beta Sitosterol
Dietary Supplement

Phytosterols are natural components of many vegetables and grains. Preliminary scientific evidence suggests that plant phytosterols may help to support cholesterol wellness when consumed as part of a low cholesterol dietary program. The three main phytosterols in phytosterol complex are beta-sitosterol, campesterol, and stigmasterol. They are natural, safe, and derived entirely from plant sources.*

Suitable for vegetarians. Contains no yeast, dairy, egg, gluten, corn or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.


Nutrition Facts
Serving Size  1 Tablet(s)
Servings Per Container  120

Amount Per Serving     % DV

calcium  60 mg   **
Phytosterol complex  937 mg   **
beta-Sitosterol  375 mg   **
Campesterol  187 mg   **
Stigmasterol  131 mg   **

** Daily Value (DV) not established.
Other Ingredients
Dibasic Calcium Phosphate, Colloidal Silicon Dioxide, Magnesium Stearate, Modified cellulose gum, Stearic Acid
Contains soy.
Label (click image to enlarge)

How To Use

1 tablet just before or with meals (not after).
If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product. , Do not use if tamper evident seal is broken or missing., Keep out of reach of children.
P.O. BOX 2218


4.8 / 5.0
4 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Glad I found out about this.
I am 33 and taking it to help lower cholesterol.
July 22, 2018
WOW! IT Works.
I take one tab w/ breakfast for the past 6 months. My PSA
went from 6.7 to 5.0. Last blood test of 5/23/2018. Absolutely True.
June 2, 2018
MSBS works great on my prostate problem
I have been taking one pill a day of Mega Strength Beta Sitosterol (MSBS) for two weeks. (The instructions recommend three pills a day with meals containing fat, but I have been taking only one with breakfast, whether or not that meal had any fat.) I am a 74-year old male of average size: 6 ft, 185 pounds.

Prior to starting MSBS I had to get up two or three times a night to urinate. Now I no longer have to get up at night to urinate.

Prior to starting MSBS I sat while urinating, because I could not pee straight. Now I can once again stand to urinate.

The reason I am taking only one pill a day is MSBS is intended primarily for maintaining a healthy cholesterol level, and my cholesterol level is fine. I think 375 mg of beta sitosterol per day is enough to take care of my prostate.
October 27, 2017
Works well. Much less need to urinate, especially at night. No upset to stomach at all. Good stuff.
March 1, 2015
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Browse 8 questions Browse 8 questions and 8 answers
Several other makers of prostate supplements claim that stinging nettle is a wonderful prostate supplement. Then why did you not include stinging nettle in ProstaGenix?
Joe K on Mar 25, 2018
How many tablets recommended per day?
A shopper on Feb 5, 2013
BEST ANSWER: That will depend on how many meals you eat a day. It says one pill before meals.
Can I also take a Saw Palmetto capsule at same time?
chick on Mar 9, 2018
Do you make this in a capsule form, this is hard to swallow ?
Bob c on Mar 11, 2018
BEST ANSWER: I have not seen this in a capsule, probably would be better, However the tablet is doable and the product works.
Is this a beta blocker?
A shopper on Apr 10, 2018
BEST ANSWER: ABSOLUTELY NOT! Plant based substance that helps the prostate
Does this product contain phytosterol esters?
A shopper on Dec 21, 2016
BEST ANSWER: The GNC Stores near my house no longer carry the subject Mega Strength Beta Sitosterol so you may have to respond to your customer request yourselves.

Thank you??

If u eat unhealthy like McDonald's or chips or candy should you still take the tablet?
A shopper on Sep 9, 2016
BEST ANSWER: I use this for prostate
does this product help to relieve the all night going to the bathroom to urinate like a product call Beta Prostate claims to do
A shopper on Aug 31, 2013
BEST ANSWER: Source Naturals Mega Strength Beta Sitosterol has been known to support cholesterol wellness.