The present invention is directed to a method of replacing collagen broken down during physical activity using a novel dietary supplement. The supplement composition of the present invention comprises collagen, glutamine, taurine, and, optionally, the nine essential amino acids. The uptake of collagen is enhanced using this combination of components to levels substantially near the pre-workout levels.

The present invention is directed to a method of replacing collagen broken down during physical activity using a novel dietary supplement. The supplement composition of the present invention comprises collagen, glutamine, taurine, and, optionally, the nine essential amino acids. The uptake of collagen is enhanced using this combination of components to levels substantially near the pre-workout levels.

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.

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.

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 is directed to a method of replacing collagen broken down during physical activity using a novel dietary supplement. The supplement composition of the present invention comprises collagen, glutamine, taurine, and, optionally, the nine essential amino acids. The uptake of collagen is enhanced using this combination of components to levels substantially near the pre-workout levels.

The present invention is directed to a method of replacing collagen broken down during physical activity using a novel dietary supplement. The supplement composition of the present invention comprises collagen, glutamine, taurine, and, optionally, the nine essential amino acids. The uptake of collagen is enhanced using this combination of components to levels substantially near the pre-workout levels.

A vitamin supplement composition that includes a complex with enhanced bioavailability having a vitamin B complex, wherein the vitamin B complex includes: (a) a first vitamin, wherein the first vitamin comprises a form of vitamin B.sub.6; (b) a second vitamin, wherein the second vitamin comprises a form of vitamin B.sub.9; (c) a third vitamin, wherein the third vitamin comprises a form of vitamin B.sub.12; and (d) wherein the first vitamin, the second vitamin, and the third vitamin cooperate synergistically to enhance bioavailability of the same. The present invention further includes a method of administering a vitamin supplement composition to an individual having, for example, MTHFR deficiency.

A vitamin supplement composition that includes a complex with enhanced bioavailability having a vitamin B complex, wherein the vitamin B complex includes: (a) a first vitamin, wherein the first vitamin comprises a form of vitamin B.sub.6; (b) a second vitamin, wherein the second vitamin comprises a form of vitamin B.sub.9; (c) a third vitamin, wherein the third vitamin comprises a form of vitamin B.sub.12; and (d) wherein the first vitamin, the second vitamin, and the third vitamin cooperate synergistically to enhance bioavailability of the same. The present invention further includes a method of administering a vitamin supplement composition to an individual having, for example, MTHFR deficiency.

Provided herein are antioxidant-enriched multivitamin compositions comprising vitamin A, vitamin C, vitamin D, vitamin E, vitamin K, thiamin, riboflavin, niacin, vitamin B6, folic acid, vitamin B 12, biotin, pantothenic acid, zinc, selenium, coenzyme Q10, lutein, lycopene, and zeaxanthin for the treatment of fat malabsorption diseases such as cystic fibrosis. Also provided are methods of treating vitamin and micronutrient deficiencies in subjects suffering from cystic fibrosis by administering an antioxidant-enriched multivitamin composition.