»Basler Zeitung«, 13/04/05

Ancient enzyme as a dietary consultant

The tendency of mammals to eat a balanced diet is inborn, according to a new study. An ancient evolutionary enzyme has been shown to prompt the brain to choose a healthy diet rich in amino acids.

The mechanism was observed by scientists at the New York University School of Medicine. They found the key enzyme in the brain of mice, as reported by the researchers in the April edition of the specialist journal “Cell Metabolism” (Vol. 1, p. 273).

In experiments, the scientists deactivated this enzyme – which resulted in the animals changing their eating habits. The mice no longer cared whether the food was balanced or not. The enzyme triggers a series of electrical impulses that send information to the mouse's brain about the amino acid content of the food, explains David Ron. This way, the brain finds out whether enough amino acids have been absorbed into the blood from the food. If the mouse eats too much “unhealthy” food, the brain sends a message that prompts the mouse to give preference to food with greater amino acid content. The findings of the New York researchers have been corroborated by experiments performed at the University of California: researcher Dorothy Gietzen had already found this enzyme in rats.

Dear reader,

We are often asked for amino acid product recommendations. As we generally cannot answer this in a universal way, the information collected from our German colleagues could be used as a guide to those who are looking for quality supplements: www.aminosaeuren.de. The site trialed and evaluated the products and services of the main providers in German-speaking countries. The information is currently only available in German, but you will nevertheless be able to see the names of the best manufacturers.


  • »Mitteldeutsche Zeitung newspaper«

    Arginine and zinc make sperm cells more resilient

    “Men should ensure that they consume a balanced diet and get enough exercise” explained Professor Frank Sommer from the Institute for Men’s Health, at the Hamburg-Eppendorf Clinic in Germany. He specifically recommended arginine when presenting his nutritional advice, as the amino acid can have a positive effect on the dynamics and fitness of sperm cells. The trace element zinc also contributes to the resilience of these cells.