The present invention provides a method for manufacturing a dispersion in which a substance, which is poorly soluble in a dispersion medium, is dispersed with a particle size of a nano-order level. More particularly, the method includes: preparing a solution containing a good solvent and the poorly soluble substance and the surfactant dissolved in the good solvent; rapidly cooling the solution to a temperature at which the poorly soluble substance precipitates in the solution at a temperature lowering rate of 100 to 4,000° C./second to produce ultrafine particles with a particle size of a nano-order level formed of the poorly soluble substance in the good solvent; and (i) separating the good solvent from a mixed solution of the solution and the dispersion medium after mixing the solution and the dispersion medium, or (ii) mixing the dispersion medium to the solution after separating the good solvent from the solution.

Aspects of the disclosure relate to compositions and methods for dietary management of certain conditions, such as infectious diseases. The disclosure is based, in part, on methods of identifying one or more single nucleotide polymorphisms (SNPs) in a subject and preparing a personalized report recommending a mixture of nutritional supplements and/or dietary aids based upon the presence of the SNPs. In some embodiments, the disclosure provides personalized compositions comprising nutritional supplements for dietary management of immune health and COVID support.

Aspects of the disclosure relate to compositions and methods for dietary management of certain conditions, such as infectious diseases. The disclosure is based, in part, on methods of identifying one or more single nucleotide polymorphisms (SNPs) in a subject and preparing a personalized report recommending a mixture of nutritional supplements and/or dietary aids based upon the presence of the SNPs. In some embodiments, the disclosure provides personalized compositions comprising nutritional supplements for dietary management of immune health and COVID support.

Provided are a composition of a dietary supplement and a nutritional additive for food, a unitary dosage form of said composition, and their use for the improvement of the quality of visual performance including contrast sensitivity. An illustrative composition of the present disclosure includes as active substances L-lysine, vitamin C, zinc, grape extract and bitter orange extract in therapeutically effective quantities, and optionally at least one excipient. In some embodiments, the percentages of the individual active substances relative to the sum of the percentages of all active substances are about 50% by weight of L-lysine, about 15% by weight of vitamin C, about 2% by weight of zinc, about 10% by weight of the grape extract and about 23% by weight of the bitter orange extract, with all percentages of the individual active substances adding up to 100% by weight of all active substances.

Provided are a composition of a dietary supplement and a nutritional additive for food, a unitary dosage form of said composition, and their use for the improvement of the quality of visual performance including contrast sensitivity. An illustrative composition of the present disclosure includes as active substances L-lysine, vitamin C, zinc, grape extract and bitter orange extract in therapeutically effective quantities, and optionally at least one excipient. In some embodiments, the percentages of the individual active substances relative to the sum of the percentages of all active substances are about 50% by weight of L-lysine, about 15% by weight of vitamin C, about 2% by weight of zinc, about 10% by weight of the grape extract and about 23% by weight of the bitter orange extract, with all percentages of the individual active substances adding up to 100% by weight of all active substances.

Provided are a composition of a dietary supplement and a nutritional additive for food, a unitary dosage form of said composition, and their use for the improvement of the quality of visual performance including contrast sensitivity. An illustrative composition of the present disclosure includes as active substances L-lysine, vitamin C, zinc, grape extract and bitter orange extract in therapeutically effective quantities, and optionally at least one excipient. In some embodiments, the percentages of the individual active substances relative to the sum of the percentages of all active substances are about 50% by weight of L-lysine, about 15% by weight of vitamin C, about 2% by weight of zinc, about 10% by weight of the grape extract and about 23% by weight of the bitter orange extract, with all percentages of the individual active substances adding up to 100% by weight of all active substances.

A combination that includes: a flavonoid, for example in an amount from about 0.1 g to about 1.5 g; and one or more of: ascorbic acid, ascorbate, or a combination thereof, for example in an amount from about 0.2 g to about 2.0 g; N-acetyl cysteine, for example in an amount from about 0.10 g to about 1.2 g; alpha-lipoic acid, for example in an amount from about 0.05 g to about 0.60 g; and at least one carotenoid, for example in an amount from about 1 mg to about 50 mg. The combination may be used to mitigate or prevent nuclear DNA damage, mitochondrial DNA damage, lipid peroxidation, protein carbonylation, or any combination thereof in a subject caused by oxidative stress.

A combination that includes: a flavonoid, for example in an amount from about 0.1 g to about 1.5 g; and one or more of: ascorbic acid, ascorbate, or a combination thereof, for example in an amount from about 0.2 g to about 2.0 g; N-acetyl cysteine, for example in an amount from about 0.10 g to about 1.2 g; alpha-lipoic acid, for example in an amount from about 0.05 g to about 0.60 g; and at least one carotenoid, for example in an amount from about 1 mg to about 50 mg. The combination may be used to mitigate or prevent nuclear DNA damage, mitochondrial DNA damage, lipid peroxidation, protein carbonylation, or any combination thereof in a subject caused by oxidative stress.

A combination that includes: a flavonoid, for example in an amount from about 0.1 g to about 1.5 g; and one or more of: ascorbic acid, ascorbate, or a combination thereof, for example in an amount from about 0.2 g to about 2.0 g; N-acetyl cysteine, for example in an amount from about 0.10 g to about 1.2 g; alpha-lipoic acid, for example in an amount from about 0.05 g to about 0.60 g; and at least one carotenoid, for example in an amount from about 1 mg to about 50 mg. The combination may be used to mitigate or prevent nuclear DNA damage, mitochondrial DNA damage, lipid peroxidation, protein carbonylation, or any combination thereof in a subject caused by oxidative stress.

The present invention is related to a supplement for reversing the aging of muscle cells after an acute bout of squat exercise in a subject, which comprises, or consists essentially of, or consists of, (1) Panax ginseng extract or Panax notoginseng extract or a combination thereof and (2) Rosa roxburghii extract at an amount to reverse the aging of muscle cells in a subject after after an acute bout of squat exercise. Provided in the present invention are the method and use of the supplement Rg1 for reversing the aging of muscle cells in a subject after an acute bout of squat exercise.