Whey Protein Supplementation and Serum Mineral Status in Elite Endurance and Power Athletes

Monira Aldhahi

Status: Completed

Conditions: Athletic Performance

Treatments: Other: No Supplement (Control); Dietary Supplement: Whey Protein Supplementation

Study type: Interventional

Funder types: Other

Identifiers

NCT07488273

PNU-12

Details and patient eligibility

About

This study investigates whether 8 weeks of post-training whey protein supplementation (30 g/day) affects serum mineral concentrations (calcium, phosphorus, magnesium, and iron) in elite endurance and power athletes during structured training.

Full description

This is a 10-week non-randomized, open-label intervention study involving elite male track-and-field athletes aged 18-26 years. Participants are allocated into a whey protein supplementation group or a control group based on convenience allocation. The intervention consists of daily intake of 30 g whey protein following training sessions over 8 weeks. Blood samples are collected at baseline and post-intervention to assess serum calcium, phosphorus, magnesium, and iron levels. The study aims to differentiate supplementation effects from training-induced physiological changes.

Enrollment: 59 patients

Sex: All

Ages: 18 to 30 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Male elite track-and-field athletes
• Age 18-30 years
• Engaged in structured training program
• No supplement use in past 3 months

Exclusion criteria

• Use of nutritional or mineral supplements
• Metabolic or musculoskeletal disorders
• Acute injury affecting performance
• Use of ergogenic aids (e.g., creatine, anabolic agents)

Trial design

Primary purpose: Treatment

Allocation: Non-Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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59 participants in 2 patient groups

Whey Protein Group (WG)

Experimental group

Description:

Receives 30 g/day whey protein post-training for 8 weeks

Treatment:

Dietary Supplement: Whey Protein Supplementation

Control Group (CG)

Other group

Description:

Continues usual training without supplementation

Treatment:

Other: No Supplement (Control)