A review of nutritional recommendations for scuba divers

  • 0Divers Alert Network, Research, Durham, NC, USA.

|

|

Summary

This summary is machine-generated.

Nutritional guidelines for recreational scuba divers are limited. Current recommendations for energy intake, macronutrient distribution, and hydration are provided, but lack individualization for dive profiles and diver characteristics.

Area Of Science

  • Physiology
  • Nutrition
  • Diving Medicine

Background

  • Scuba diving exposes individuals to high-pressure environments, leading to physiological changes and potential risks like decompression sickness.
  • Nutritional intake influences inflammation and oxidative stress, factors potentially impacting decompression stress in divers.
  • Existing nutritional recommendations for saturation divers may not be suitable for recreational diving due to differing energetic demands.

Purpose Of The Study

  • To review current nutritional recommendations for recreational divers.
  • To identify research gaps concerning nutrition and diver health and safety.

Main Methods

  • This study employed a narrative review approach.
  • Existing literature on nutritional recommendations and diver physiology was synthesized.

Main Results

  • Recreational divers are advised daily energy intake of ~170-210 kJ·kg-1, with 50% from carbohydrates and <30% from fat.
  • Protein intake should be at least 1 g·kg-1 body mass daily. Hydration requires a minimum of 500 ml/hour for dives >3 hours, with pre-dive hydration being crucial.
  • Specialized diets for commercial/military diving are not recommended for recreational divers due to lack of evidence and extreme nature.

Conclusions

  • Current nutritional recommendations for recreational divers do not account for environmental factors (temperature, depth, gas mix) or individual variability.
  • Personalized recommendations considering basal metabolic rate and activity levels are suggested but require further validation.
  • More research is needed to refine nutritional strategies for recreational divers based on dive profiles and demographics.