“Stay hydrated, eat well, get your rest.”

Hydration and sleep are straightforward—but “eating well” is where things often get a bit vague. What does it actually mean for divers?

Let’s break it down. Whether you’re prepping for a long cave dive, battling jet lag, or sweating in a drysuit under the Mexican sun, what you put in your body matters—before, during, and after the dive.

Start Simple: Stay Safe, Stay Fueled

Obvious as it sounds, many divers underestimate the impact of travel, new foods, and subtle hygiene lapses. Fresh juices, spicy street tacos, or a salad washed in unfiltered water may be harmless to locals—but they can throw your gut into chaos. We’ve seen divers call dives or bolt from the cave because of a “funny stomach.” Others miss full days of diving.

To minimize the risk:

• – Give yourself time to acclimate after long flights or time zone changes.
• – Wash your hands often (yes, really).
• – Stay well-hydrated—add electrolytes, especially in hot climates.
• – Stick to familiar, gentle foods before diving; save culinary adventures for non-dive days.
• – Avoid heavy, greasy meals or excessive fiber—feeling bloated underwater is no fun.

Finish big meals at least an hour before the dive. Light, easy-to-digest snacks like a banana are great just before or after diving.

Diving = Sport. Fuel Like an Athlete.

Obvious as it sounds, many divers underestimate the impact of travel, new foods, and subtle hygiene lapses. Fresh juices, spicy street tacos, or a salad washed in unfiltered water may be harmless to locals—but they can throw your gut into chaos. We’ve seen divers call dives or bolt from the cave because of a “funny stomach.” Others miss full days of diving.

To minimize the risk:

• – Give yourself time to acclimate after long flights or time zone changes.
• – Wash your hands often (yes, really).
• – Stay well-hydrated—add electrolytes, especially in hot climates.
• – Stick to familiar, gentle foods before diving; save culinary adventures for non-dive days.
• – Avoid heavy, greasy meals or excessive fiber—feeling bloated underwater is no fun.

Finish big meals at least an hour before the dive. Light, easy-to-digest snacks like a banana are great just before or after diving.

Macronutrients Matter

Carbohydrates

Your body’s main fuel source. Carbs break into glucose and glycogen, feeding your brain and muscles.
 Good sources: whole grains, fruit, vegetables, pulses, oats.
 Watch out for: excessive sugar or high-fiber foods before a dive—they can cause bloating or sugar crashes mid-dive.

Protein

Essential for muscle recovery, repair, and long-term health.
 Great options: fish, lean meat, eggs, dairy, tofu, lentils.
 Eat protein with your carbs pre-dive to stay satisfied longer, and definitely include some after the dive for recovery.

Fat

Fats protect organs, aid vitamin absorption (A, D, E, K), and provide long-lasting energy.
 Best fats: nuts, avocados, oily fish, seeds, and plant oils.
 Avoid excessive saturated fats (butter, fatty meats), as they may affect circulation.

Antioxidants & Micronutrients: Your Cellular Armor

Diving, like other aerobic activities, increases oxidative stress. That’s a normal part of metabolism, but if unbalanced, it can lead to cellular damage.
 Fight back with:

• Vitamin-rich foods (A, C, E)
• Dark chocolate, coffee (yes!), carrots, berries, beetroot

Anti-inflammatory options like ginger, tuna, salmon, tomatoes

Micronutrients—vitamins, minerals, electrolytes—are essential for proper enzyme function and metabolism. A well-rounded diet usually covers your needs, but if you’re unsure, a blood test can help guide supplementation.

Hydration: Non-Negotiable

Water supports everything from muscle function to thermoregulation. In Mexico, bottled water lacks electrolytes, and we lose a ton of fluids through heat, sweat, and long dive times.
 Aim for:

• 3+ liters of water per day

Electrolyte supplements (especially during active diving days)

Eat Like You Want to Keep Diving

A solid diet supports your performance and extends your diving career. Avoiding alcohol, smoking, and highly processed foods goes a long way. Whether you’re an occasional diver or working full-time in the water, proper nutrition makes diving safer, easier, and more enjoyable.

You don’t have to be perfect—just mindful. Because let’s be honest: no one wants to miss a dream dive because they ate something they shouldn’t have.