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L-Tryptophan | 
| Brand: Source Naturals
Buy New: $6.11 - $43.49 (On sale from $57.98)
as of 7/31/2010 00:12 PDT details
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Rating:  31 reviews
ASIN: B000FNSEZA
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| Editorial Reviews:
Product Description
L-Tryptophan
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| Customer Reviews:
Showing reviews 1-5 of 31
 Good quality, good price, probably would have preferred tablets. June 20, 2010
Physics Fan (Portland, OR USA)
I purchased this to assist with social anxiety, and taking it regularly has made a tremendous difference. This brand is very potent, and I've had no problems with its consistency. In fact, 500 mg is far too much for my body to handle at one time, so I ended up breaking the capsules into halves by using emptied capsules from a vitamin. I wish I had gotten tablets, so I could have just broken the tablets in half! However, this product's great, and many people suffering from SAD, including myself, have found it very useful.
Awesome Sleep Aid and Mood Booster June 15, 2010
Kerri Elders (Fort Worth, Texas USA)
5 out of 5 found this review helpful
Source Naturals L-Tryptophan has performed miracles for me. It's an amino acid that helps build the brain's feel-good chemical, serotonin. I've used it for about 2 years after reading The Mood Cure: The 4-Step Program to Take Charge of Your Emotions--Today for its nutritional advice, upon the recommendation of this book: Protein Power: The High-Protein/Low-Carbohydrate Way to Lose Weight, Feel Fit, and Boost Your Health--in Just Weeks!.
I was shocked by the difference it made for me in the quality and quantity of my sleep. I'd spent the last year or two waking up, wide awake, at 3:30 in the morning & was unable to go back to sleep. I take 1500 mg of Tryptophan (3 500 mg capsules) and 400 mg of chelated magnesium before bed and now enjoy deep and restful sleep. [I've recently added in another supplement, melatonin; you can read more about that at the end of this review].
I find that I am more resilient, resistant to stress, & easygoing since taking tryptophan.
I experienced its incredible mood-boosting effect earlier this year after enduring a ruptured appendix. I suffered several complications & had to be put on super strong antibiotics that depleted all my B Vitamins and sent me into a quick but INTENSE bout of post-surgical depression (much like what heart bypass surgery patients experience, according to my surgeon). I spoke with my physician to get his approval, then took just 500 mg of tryptophan that afternoon and then 1500 at bedtime, as usual, and bounced back to my usual cheerful self within JUST 2 DAYS.
Just a suggestion--be sure you're taking it on an EMPTY stomach (about 1-1/2 hours after eating anything).
This is an amino acid & any trace of protein in your stomach will compete with the tryptophan. Don't take with milk; take with water (some experts suggest a couple of sips of apple juice--but I use H2o).
If 3 capsules at bedtime (or an hour before) on an empty stomach won't do the trick after a few days, then it's possible you aren't low on serotonin. If you awake groggy, you're taking too much.
Here's something else that works: 400 mg of CHELATED magnesium (not just magnesium oxide, make sure it is chelated magnesium); the best I know of is this one: Chelated Magnesium 200mg - 180 - Tablet. Works wonders for sleep and health; most Americans' magnesium levels are chronically low, which can lead to heart issues and other preventable diseases. Get this book to learn more: The Magnesium Factor.
Hope this helps someone out there; I wish I'd known about tryptophan 10 years ago!
P.S. For hardcore insomniacs for which tryptophan won't do the trick (give it time & remember to take on an empty stomach), try some melatonin; read my review of this product for more detailed info: Source Naturals Melatonin Complex Sublingual Peppermint, 100 tablets (Pack of 2)
****UPDATE P.S. Also, please remember that supplements work slowly, over time. Metabolisms vary. Educate yourself; I highly recommend you start with The Mood Cure: The 4-Step Program to Take Charge of Your Emotions--Today to quickly "zero in" on your own personalized needs. Good Health (and good sleep) to All!
Settle down June 4, 2010
Grace Buchanan (Syracuse, NY USA)
1 out of 1 found this review helpful
This is great for when I get really wound up, tackling too many projects at once, when my body is tired but my brain won't shut down to sleep, and when I can't stay asleep for a good night's rest. I like that it is a natural source of melatonin (plain melatonin is synthesized because it occurs in such small amounts naturally). I take this amino acid with others to support my health. I trust Source Naturals; I haven't found any problems with their products on Consumer Lab's website. I've been taking L-Tryptophan for a couple years intermittently, and daily for the past three months.
I can sleep again. May 9, 2010
Read for Life (Columbus, Georgia)
2 out of 2 found this review helpful
I have long suffered from insomnia - for over 20 years, with a worsening of the problem over the past 3 years. I started taking this, and I fall asleep easily and stay asleep for 6 hours or more. I was very skeptical when I ordered this, but it does work. There are no side effects for me.
 unaffected by this product February 26, 2010
Sebastion McEwan (San Diego, CA)
0 out of 1 found this review helpful
Bought from Amazon, I had high hopes for this product after seeking it for many years. Sorry to say though it had unnoticeable or no effect at all.
Showing reviews 1-5 of 31
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