With Rainforest Wildcrafted…
Red Cinchona Bark


Lift Your Mood and
Enjoy Life… Naturally!

Your Best Defense…
Any Season

Advanced Serotonin Formula…
With TryptoGold

Naturally Support Your…
Healthy Blood Sugar

Purest On The Planet… Since 1994

   At LIDTKE, we manufacture nutritional supplements that are kind to your body – using pure natural ingredients that are tested at multiple independent laboratories for pesticides, heavy metals, and other contaminants.

   In everything we do, we strive to restore life and health. For this reason, we value and honor those who share our philosophy. Many dream about making the planet a better place, but only a determined few dedicate their lives to actually making it happen.

   When it comes to nutritional supplements, there are hundreds of details that must be controlled to attain the highest quality. 

   As a manufacturer, you truly must believe in your work to spend decades refining procedures and identifying the best sources of raw materials. In order to live up to our philosophy, we take the time to understand each ingredient, so we can discern small, but important differences in quality.

   For over 25 years, LIDTKE has taken pride in providing you the very finest quality nutrients. LIDTKE products are identity and purity validated in an FDA registered, GMP certified facility.  LIDTKE stands behind each product and guarantees customer satisfaction.

Be well in mind, body, and spirit!

   L-Tryptophan is the amino acid most lacking in our American diet and likely the most critical amino acid to support emotional health and natural, refreshing sleep. Plus, L-Tryptophan is a natural building block of serotonin, the neurotransmitter that plays an important role in your appetite, mood, normal sleep patterns, and nervous-system health.

   With ultra-premium TryptoGold®LIDTKE strives to bring a new level of purity and safety to all our products containing L-Tryptophan. LIDTKE TryptoGold® is custom manufactured to surpass even the highest European (EP) standards. You can rest assured that LIDTKE consistently focuses on offering the finest L-Tryptophan available anywhere.

LIDTKE Supplements Support…

Overall health and well-being, both physical and mental, making your health our personal concern.
We are here to listen. Feel free to contact us with any questions you may have about our products.


Broad-Spectrum Vision Formula
Clear, sharp vision and excellent eye health…
should be your goal, regardless of age. Serious support for computer glare & night vision.

Immune Health

Powerful Nutrients for Immune Support
Schools, airplanes, gyms, restaurants, parties… you never know when or where your body will need the extra strength to stay healthy.

Blood Sugar

Supported By 4 Patents
Designed by Dr. Charles I. Jarowski, director of research at Pfizer, Inc, to balance dietary essential amino acids and support and maintain healthy blood-sugar.*

Pain Relief

Ease Minor Pain & Feel Good
Nature’s way to relieve common pain and promote good mood. Research shows that endorphins are released in response to pain and stress, bringing relief.