View clinical trials related to Dietary Supplements.
Filter by:Background: COVID-19 left consequences in different organs from months to years requiring different types of rehabilitation. In fact, a severe loss in the lung function, and in the respiratory and peripheral muscle strength is commonly observed in post-COVID-19 patients. Objectives: Thus, the present study investigated whether 30 days of supplementation with a nutritional blend (ImmuneRecov®; composition: whey protein concentrate, astaxanthin, creatine, selenium, vitamin C, glutamic acid, tryptophan, magnesium) would help to minimize the respiratory (lung function) and muscular (respiratory and peripheral muscles) sequelae in post-COVID-19 patients.
The purpose of this study is to test whether a natural product supplement can potentiate the increase in collagen synthesis following the ingestion of collagen protein. The investigators have developed a model of natural (GRAS certified) products that stimulate collagen synthesis, in vitro. The investigators will determine whether the natural product supplement can potentiate the collagen synthetic response to the ingestion of collagen protein. Basal and fed serum will be isolated and these samples will be used to treat human engineered ligaments.
This is a randomized placebo-controlled study that aims to investigate the effect of a new maternal dietary supplement (protein hydrolysate/yeast beta-glucan combination) on mother and infant health.
This is a randomized controlled trial aimed to investigate the effects of different supplementary protein sources on muscle adaptations to resistance exercise. Young, healthy, recreationally active participants consuming an omnivorous diet with protein intake within recommended dietary allowance (RDA) (i.e.; 0.8-1.0 g.kg-1. d-1) will be recruited to undergo a 12-wk supervised resistance training program in combination with the intake of three 15-g daily doses (45g. d-1 total) of either a mixed plant- (i.e.; soy and pea protein) or animal-based (i.e.; whey protein) protein in drink form as a supplementary source of protein to their main meals of the day (i.e.; breakfast, lunch, and dinner). Before (PRE) and after (POST) the 12-wk intervention, participants will be assessed for body composition by dual-energy X-ray absorptiometry (DXA), muscle cross-sectional area (ultrasound) and fiber cross-sectional area (muscle biopsy), and maximal isotonic strength (1RM). Training consists of a resistance training (RT) program individually supervised by a researcher blinded to treatment in a laboratorial setting. Assessments will also be conducted in a blinded fashion.
To investigate the effect of combined DHEA, CoQ10 and tocotrienol on IVF cycles in poor ovarian responders
B-alanine supplementation is highly efficient in increasing intramuscular carnosine content, leading to improved physical performance, especially in high-intensity exercises (HIIE). It seems that exercise per se can modulate carnosine content; however, it remains uncertain whether physical training or training status can influence B-alanine supplementation responses. Thus, this work aims to assess whether HIIE can increase B-alanine uptake by peripheral tissues and, more specifically, skeletal muscle and increase intramuscular carnosine synthesis. The volunteers will be evaluated in two conditions: intake of B-alanine + exercise (B-EX) and B-alanine intake only (B-Ala). This process will be divided into two blocks of six days (Thursday to Thursday - without the weekend) with a 4-6 weeks washout. In the B-EX block, a 20-minute HIIE session will be held. In the B-Ala block, the same procedures will be adopted for the B-EX block, with the replacement of the HIIE for 20 minutes of rest sitting on the cycle ergometer. We will evaluate the determination of muscle B-alanine, plasma, and urine, the gene expression of carnosine-related enzymes and transporters, the enzymes Carnosine Synthase 1 (CARNS1), carnosine dipeptidase 2 (CN2), taurine transporter (TauT), PAT1, and phosphorylated Na + / K + / ATPase. The hypotheses are: 1) acute physical exercise increases the uptake of B-alanine by the skeletal muscle; 2) this effect is mediated by the increased activity of the Na + / K + / ATPase pump; 3) this effect, when repeated over five training sessions, results in observable increases in β-alanine → carnosine conversion in skeletal muscle.
The PERFORM-TAVR trial (Protein and Exercise to Reverse Frailty in OldeR Men and women undergoing Transcatheter Aortic Valve Replacement) is a multicenter randomized clinical trial with a parallel-group design. The investigators will screen consecutive patients ≥70 years of age before TAVR and enrol those that have evidence of physical frailty defined by an SPPB score ≤8 or an SF36-PF score ≤55. The investigators will randomly allocate 200 patients to receive a multi-faceted intervention consisting of a home-based exercise program and a protein-rich oral nutritional supplement or usual lifestyle counselling. The primary endpoint will be the change in SF36-PF score at 12 weeks.
To examine the cognitive and metabolic effects of a probiotic supplement that is readily and already available for purchase in public drug stores. This study is a double-blinded randomized cross-over placebo-controlled intervention study. Participants will be randomized to receive either the probiotic supplement or the placebo during the first intervention period which will last 2 weeks. This will be followed by a washout period, after which they will proceed to the second intervention period, also lasting 2 weeks and also followed by a washout period.