The invention relates to a process for the preparation of a composition comprising free amino acids, oligopeptides and polypeptides, characterized in that the process comprises at least the following step: adding at least two different peptidases, which are present in purified form, to a composition comprising at least one protein.

Provided herein are compositions (e.g., pharmaceutical compositions, nutraceutical compositions, foods, beverages, cosmetic compositions, diet supplements) comprising deuterated caffeine. The provided compositions may be useful for treating and/or preventing various diseases and conditions, such as obesity, causing weight loss, increasing metabolic rate, reducing appetite, increasing energy expenditure, increasing urine output, increasing sodium excretion, reducing edema, a pain disorder, apnea, hypotension, an encephalopathy, a neurological or psychiatric disorder, and an inflammatory disorder.

The present invention relates primarily to the use of certain hydroxybenzoic acid amides or the salts or mixtures thereof for masking an unpleasant taste impression, preferably of a bitter, adstringent, dusty, dry, floury, rancid, metallic and/or cardboard taste or aftertaste, of one or more unpleasant-tasting peptides or of certain amino acid mixtures. The invention further relates to a corresponding method for masking unpleasant taste impressions and to novel preparations.

An energy composition includes a methylated xanthine, a choline derivative, and at least one flavorant in a sufficient amount to render the energy composition palatable. The energy composition may also include vitamins, amino acids, preservatives, and the like.

An energy composition includes a methylated xanthine, a choline derivative, and at least one flavorant in a sufficient amount to render the energy composition palatable. The energy composition may also include vitamins, amino acids, preservatives, and the like.

Gender specific synthetic nutritional compositions comprising phenylalanine in concentrations reflecting those found in human milk produced by mothers of infants of the corresponding gender at the corresponding stage of lactation, and nutritional systems comprising them.

A nootropic combination for increasing cognitive functioning. The combination includes a phosphodiesterase 4 inhibitor and a cyclic adenosine monophosphate increasing agent. In some versions, the phosphodiesterase inhibitor is a flavonoid such as luteolin, and the cyclic adenosine monophosphate increasing agent is a labdane diterpene such as forskolin. The combination can also include one or a combination of L-phenylalanine, L-carnitine, acetyl-L-carnitine, and vitamin B6. In some versions, plant extracts, such as artichoke extract can be used as a source of the PDE4 inhibitor. Methods of using the combination to increase cognitive functioning are also included.

A nootropic combination for increasing cognitive functioning. The combination includes a phosphodiesterase 4 inhibitor and a cyclic adenosine monophosphate increasing agent. In some versions, the phosphodiesterase inhibitor is a flavonoid such as luteolin, and the cyclic adenosine monophosphate increasing agent is a labdane diterpene such as forskolin. The combination can also include one or a combination of L-phenylalanine, L-carnitine, acetyl-L-carnitine, and vitamin B6. In some versions, plant extracts, such as artichoke extract can be used as a source of the PDE4 inhibitor. Methods of using the combination to increase cognitive functioning are also included.

An energy composition includes a methylated xanthine, a choline derivative, and at least one flavorant in a sufficient amount to render the energy composition palatable. The energy composition may also include vitamins, amino acids, enzymes, preservatives, and the like.

An energy composition includes a methylated xanthine, a choline derivative, and at least one flavorant in a sufficient amount to render the energy composition palatable. The energy composition may also include vitamins, amino acids, enzymes, preservatives, and the like.