Swanson Ultra

Super-Strength Magnesium Citrate

Swanson $5.79

Item #: SWU339
Availability: Backordered
225 mg 120 Tabs
Tabs size = R*, Pill Size Guide

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  • Vital for healthy heart and nerves

  • High potency, body-preferred form

  • Bone-building mineral
Do you get enough magnesium in your daily diet? Foods rich in this essential mineral include seeds, nuts, whole grains, dark green leafy vegetables and some fish. Magnesium is a key player in basic cellular function in the heart and nervous system, as well as the catalyst for enzyme reactions that create energy. It supports a smooth, efficient pump in the heart muscle just as it also works synergistically with calcium to build bone. Our citrate formulation delivers over half the body's RDA of magnesium in one, highly bioavailable tablet!

Supplement Facts

Serving Size 1 Tablet

  Amount Per Serving % Daily Value
Magnesium(from magnesium citrate) 225 mg 56%

Other ingredients: Microcrystalline cellulose (plant fiber), stearic acid, croscarmellose sodium, magnesium stearate, food glaze.

Suggested Use: As a dietary supplement, take one tablet one to two times per day with water.

Terms and Ingredient Definitions

Summary of Customer Ratings & Reviews

Customer Ratings & Reviews

Super-Strength Magnesium Citrate 4.7 5 36 40
Great purchase Tablets are quite large. I started to feel the benefits in just a few days! March 18, 2012
Best Deal I am very pleased, the cost and quality cannot be beat..large pill, but you get nearly 50% daily needs in one pill March 15, 2012
my new magnesium friend I very much like the magnesium citrate that I am able to buy from Swanson vitamins. The price and quality are remarkable. I have found this citrate form to agree with my system. I have tried many other forms and brands, but this one really helps me. It was the first thing I ordered from this company, and it is the high quality and great prices that have kept me coming back for other supplements. March 14, 2012
Great product I like most all of the Swanson brand and magnesium citrate is great. I have been taking this about a year now. No plans of changing and highly recommend! January 15, 2012
BIG tablet good product This is a horse tablet I had to get used to swallowing. I like this form of magnesium, though, and am reordering. January 3, 2012
Excellent I like the Swanson brand of Magnesium Citrate. November 28, 2011
Tablets TOO BIG Honestly, these huge tablets are sized for horses. I bought two bottles but I can't swallow these things! They are three times thicker than you would expect. I'd rather take 3 small supplements comfortably than try to choke down one big one. And I do mean choke. October 25, 2011
Magnesium for "Superman" workouts I've been tracking my calories on a health website (fitday) and quickly discovered I was running a deficit in magnesium even though my diet has been rich in fruits and vegetables. In fact new research is indicating that the RDA for this critical mineral should be raised. For athletes, especially endurance athletes, higher levels of magnesium are critical for performance. Just google "Magnesium: The Multi-Purpose Mineral" and you'll find an excellent article backed up with references. Since taking this product my workouts have become more efficient and I can exercise longer and harder. When I upped my overall intake from the minimum RDA (tracked) I noticed a marked improvement in my exercise performance. At this price, for these results, I cannot recommend this product highly enough. Bravo! October 25, 2011
We all need Magnesium I think Magnesium Citrate is the best form but I would prefer a capsule. This large tablet is not difficult for me to swallow but I worry about the absorbtion. It seems ok. I feel better when I take Magnesium. My doctor told me an easy way to swallow a big pill is to tilt my head down a bit when I swallow - as opposed to tilting the head back. It works! October 19, 2011
Excellent I am very pleased with the product. Thanks October 6, 2011
Very good product I was in the market for a good magnesium citrate supplement because my multi doesn't provide me nearly enough magnesium. This is a very good quality tablet and the price is extremely reasonable. One last thing. If you have a problem swallowing large tablets you might want to look in Swanson's inventory for another magnesium product. The item description says the tablet is size 'R'. I would concur concerning the tablets length, but the width of the tablet I would say is much closer to size 'S'. Personally, this is not a problem for me in the slightest. I just thought this information would be helpful for the 'swallowing impaired'. Keep up the good work Swanson! :) June 26, 2011
horse sized pill I have difficulty swallowing so this was a bit of a chore. I managed though and was really hoping for more relief in certain areas that this is supposed to help. It may not be the one for me afterall, but i sure hope it helps someone. May 30, 2011
tablets very large I have been looking for an affordable magnesium citrate and the price is good, however the tablets are Very large and difficult to swallow. I would rather take multiple tabs than such a large one, I tried crushing it and taking with yogurt but dont know if crushing is alright or not. I hope they will make a smaller tab in the future. March 5, 2011
Pill size too Large but Good Other than I find the pill size is not convenient I am satified with the product. I wish the tablet dimensions were a longer oval shape with less thickness. I find such pills much easier to swallow. March 2, 2011
good source of Magnesium The pill is a bit large, but that's just what you get with a citrate form. It tends to be pretty bio-available and produces the results that I want. February 12, 2011
hard to swallow I find this one hard to swallow because of its size. I expect to have trouble unless I swallow it with a mouth full of banana. December 4, 2010
Tablet way too large I much prefer Magnesium Citrate because I'm over-sensitive (runny stool) to the other forms. Unfortunately, Swanson made this tablet too big. It's really fat and chunky and can get stuck in your throat. I tried cutting the tablets in half, but the chalky texture makes for a rough edge that can still stick in your throat. After having this happen several times, I threw the bottle out. It did work well for me, however, on the times I could get it down, as I absorbed it without the problems associated with the other forms of magnesium. Next, I will try the Magnesium Citrate by Nutricology Allergy Research at 170 mg and in a capsule form. Swanson, if you're reading this, cut the dosage down and get this into an easy-to-swallow capsule. A large tablet is not practical. October 21, 2010
I give this to my husband at night so he can relax and it helps with his snoring. May 11, 2010
hope to cut the size in half I only take an half of the pile at night to help me to sleep, it seems working, the size of the pill is way too big I have trouble to swollow it. I hope they make smaller pills, that all I need. May 9, 2010
Great Magnesium for a Great Price Magnesium is an important mineral, and many Americans don't get enough in their diets. However, a lot of popular forms of Magnesium (like Magnesium Oxide) don't absorb very well. Magnesium Citrate has been shown to be readily absorbed by the body, which is why my wife and I take it regularly. Swanson offers a great price on Magnesium Citrate. Each tablet has a whopping 225 mg of Magnesium, which is more than double the amount most companies supply in one pill. Of course, despite having more Magnesium per tablet, Swanson's Magnesium Citrate is even less expensive than the competition. On days when I don't need 225 mg of Magnesium, it is easy to just split the tablet in half and save the rest for another day. Overall, this is a great deal on a superior form of Magnesium. If you want to experience the benefits of Magnesium for an awesome price, this is your best option. February 20, 2010
simply the best one Most effective without side effect nuisances. February 5, 2010
great price We have bought super-strength magnesium citrate for a couple months now, it works great and the price is wonderful too. I have found my favorite company to buy from. You won't be disappointed February 3, 2010
Great product. I give a little bit to everybody in the family. My son especially likes it, and gets it out every day even if I don't give it to him. He says it helps him feel calm. The citrate form is well absorbed, far better than the oxide form of magnesium. Swanson's price is good too--especially when there's a 2-for-1 sale! January 25, 2010
Can't beat it for the money The pill is a little big but I do not have any problems swallowing it. Overall a great purchase. December 7, 2009
great product Magnesium citrate is one of the best form of magnesium and swansons has the best. I hope swansons considers going to a capsule form as this is the best way of taking supplements. This also would make it easier to swallow. November 10, 2009
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