Is "Flush-Free" Niacin Less Effective Than Regular Niacin?

Question: With my Doctor's okay, I took 2 sustained-release niacin tablets daily, with very good results for cholesterol support. However I recently made a mistake when I reordered from Swanson and...

Why Does Magnesium Keep Me Up?

Question: Can you please explain why I can't sleep if I take any magnesium product at any time of the day? I am beginning to believe that taking several supplements with magnesium stearate in them...

Huperzine A Value?

Question: I recently changed from Huperzine "A" to Maximum Strength Huperzine "A". I had just began taking 4 of the 50 mcg per day. By switching to just one of the Maximum Strength 200 mcg, I believed...

Are Your Vitamins Manufactured In China?

Question: Hello, I was wondering if any of your vitamins or herbs are manufactured in China? If they are do you have a list so when I order from you I won't get any of these Chinese products?   Thank...

Vitamin K2 Question

Question: Is the Vitamin K2 sold by Swanson manufactured in the United States?   We don’t limit most of our manufacturers to only one country of origin, but we do limit them to a quality standard....

Joint Problem: What Do You Recommend?

Question: Now a days sometime I have joint discomfort after sitting for long time, such as dinner.  What kind of supplement do you recommend?   We would look at the most popular joint support...

High Carb Fillers Like Rice Flour

Question: Why do so many of Swanson's supplements contain rice flour as fillers? Many people are sensitive to refined carbohydrates, and if we take many supplements containing rice flour, it adds up...

How Much Lutein Should I Take?

Question: The Research Update article today mentioned the benefits of lutein and zeaxanthin for macular protection.  How much would be suggested for a 60 yo female, if I may ask?   Unfortunately, the...

Can Zeaxanthin Affect Thyroid Function?

Question: Is there a source of Zeaxanthin that has a negative effect on the thyroid?   We’ve never heard of Zeaxanthin being harmful to the Thyroid as it is a simple carotenoid that is commonly derived...

Question Regarding Swanson Ultra Dr. Stephen Langer's Glutathione Precursor Complex

Question: I am interested in trying Swanson Ultra Dr. Stephen Langer's Glutathione Precursor Complex, but I have read that zinc should be taken in conjunction with N-Acetyl-L-Cysteine (NAC), and I see...

Refrigeration of Supplements

Question: Is refrigeration of supplements ever bad for them. I usually see "store in a cool, dark place"............sounds like a fridge to me.   Actually, a fridge is cold (as opposed to cool) and...

Where Are Swanson Vitamins Made?

Question: I have just ordered my first supplements from Swanson's. Could you please tell me where they are manufactured.     Thank you for the question. The answer really varies from product to...