Dietary Supplements and Sports Performance: Herbals

Williams, Melvin H.

doi:10.1186/1550-2783-3-1-1

Cited by 82 publications

(49 citation statements)

References 35 publications

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“…Hence, knowledge of the amino acid composition of foods serves as a basis for establishing their potential nutritive value. It may also allow evaluation of changes in nutritive value that may arise in the preparation, processing, and storage of foods [ 11 ].…”

Section: Resultsmentioning

confidence: 99%

Amino Acid Compositions of 27 Food Fishes and Their Importance in Clinical Nutrition

Mohanty

Mahanty

Ganguly

et al. 2014

Journal of Amino Acids

182

117

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Proteins and amino acids are important biomolecules which regulate key metabolic pathways and serve as precursors for synthesis of biologically important substances; moreover, amino acids are building blocks of proteins. Fish is an important dietary source of quality animal proteins and amino acids and play important role in human nutrition. In the present investigation, crude protein content and amino acid compositions of important food fishes from different habitats have been studied. Crude protein content was determined by Kjeldahl method and amino acid composition was analyzed by high performance liquid chromatography and information on 27 food fishes was generated. The analysis showed that the cold water species are rich in lysine and aspartic acid, marine fishes in leucine, small indigenous fishes in histidine, and the carps and catfishes in glutamic acid and glycine. The enriched nutrition knowledge base would enhance the utility of fish as a source of quality animal proteins and amino acids and aid in their inclusion in dietary counseling and patient guidance for specific nutritional needs.

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Section: Resultsmentioning

confidence: 99%

Amino Acid Compositions of 27 Food Fishes and Their Importance in Clinical Nutrition

Mohanty

Mahanty

Ganguly

et al. 2014

Journal of Amino Acids

182

117

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“…High doses (supraphysiological doses) of B‐vitamins could ameliorate genetic diseases by stimulating variant enzymes with decreased coenzyme‐binding affinity (increased K m ) (Ames et al, 2002). It is found that athletes who lack B vitamins have reduced high‐intensity exercise performance and are less able to repair damaged muscles or build muscle mass than their peers who eat a diet rich in B‐vitamins (Williams, 2004).…”

Section: Discussionmentioning

confidence: 99%

Mitochondrial nutrients stimulate performance and mitochondrial biogenesis in exhaustively exercised rats

Sun

Feng-lei

Shen

et al. 2011

Scandinavian Med Sci Sports

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The aim of this study was to investigate the effects of a combination of nutrients on physical performance, oxidative stress and mitochondrial biogenesis in rats subjected to exhaustive exercise. Rats were divided into sedentary control (SC), exhaustive exercise (EC) and exhaustive exercise with nutrient supplementation (EN). The nutrients include (mg/kg/day): R-α-lipoic acid 50, acetyl-L-carnitine 100, biotin 0.1, nicotinamide 15, riboflavin 6, pyridoxine 6, creatine 50, CoQ10 5, resveratrol 5 and taurine 100. Examination of running distances over the 4-week period revealed that EN rats ran significantly longer throughout the entire duration of the exhaustive exercise period compared with the EC rats. Nutrient supplementation significantly inhibited the increase in activities of alanine transaminase, lactate dehydrogenase and creatine kinase, reversed increases in malondialdehyde, inhibited decreases in glutathione S-transferase and total antioxidant capacity in plasma, and suppressed the elevation of reactive oxygen species and apoptosis in splenic lymphocytes. Nutrient supplementation increased the protein expression of mitochondrial complexes I, II and III, mtDNA number and transcription factors involved in mitochondrial biogenesis and fusion in skeletal muscle. These findings suggest that mitochondrial nutrient supplementation can reduce exhaustive exercise-induced oxidative damage and mitochondrial dysfunction, thus leading to enhancement of physical performance and of fatigue recovery.

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“…In particular, Italy ranks as the leading country in Europe for the consumption of plant-based dietary supplements (DS) [3]. These products are not simply used to support sport performances [4], but their non-prescribed use is very frequent also among children and adolescents [5], students [6], pregnant and postmenopausal women [7,8], and oncological patients or those affected by other chronic diseases [9,10].…”

Section: Introductionmentioning

confidence: 99%

Vaccinium macrocarpon (Cranberry)-Based Dietary Supplements: Variation in Mass Uniformity, Proanthocyanidin Dosage and Anthocyanin Profile Demonstrates Quality Control Standard Needed

et al. 2020

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Vaccinium macrocarpon (syn. American Cranberry) is employed in dietary supplements (DS) with the aim to improve urinary tract well-being. This property is linked to the antiadhesion-activity of proanthocyanidins (PACs) against uropathogenic-bacteria. However, the current European legislation has been criticized for being weak and ineffective. Indeed, recent scientific works report mislabeled, contaminated, and adulterated supplements containing dangerous or unknown compounds, or sold at toxic doses. In this work, we analysed 24 DS that claim to contain cranberry, and to have a specific dosage of PACs. Our tests included the control of the good manufacturing practice according to the European Pharmacopoeia, and the verification of the claimed dosage of PACs. Moreover, in order to confirm the real presence of cranberry in DS, chemical fingerprinting via HPLC-UV/Vis-MS/MS was employed. Our results showed that 17 DS did not comply with the uniformity test of dosage forms, and only five contained cranberry. Finally, 16 DS claimed an incorrect amount of PACs. These data suggest that several cranberry-based DS are present in the European market with insufficient quality controls. Considering that often DS are self-prescribed by consumer relying on their claim, the data obtained in this work should encourage more controls and stricter rules.

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Dietary Supplements and Sports Performance: Herbals

Cited by 82 publications

References 35 publications

Amino Acid Compositions of 27 Food Fishes and Their Importance in Clinical Nutrition

Amino Acid Compositions of 27 Food Fishes and Their Importance in Clinical Nutrition

Mitochondrial nutrients stimulate performance and mitochondrial biogenesis in exhaustively exercised rats

Vaccinium macrocarpon (Cranberry)-Based Dietary Supplements: Variation in Mass Uniformity, Proanthocyanidin Dosage and Anthocyanin Profile Demonstrates Quality Control Standard Needed

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