Nutritional supplements have become a global sensation. Once popular among the athletic and bodybuilding crowd, fitness supplements can now be found in most homes sitting in cabinets, or on top of refrigerators. Science has fueled this explosion in supplement popularity as more and more studies are being released proving the benefits of a variety of herbal extracts, nutritional compounds, and other ingredients. Can supplements help divers? Let’s take a look at five supplements that all divers should consider taking.


That oddly-shaped root that you see in alternative medicine stores has been a part of traditional Chinese medicine for thousands of years. Great for your overall health and wellness, ginseng might also be able to help with your diving performance.

Ginseng has been shown across numerous studies to improve physical as well as cognitive performance. This has important implications for your diving as ginseng might be able to boost your time spent under water with a level of attention and focus that remains consistent throughout.

Best Time to Take Ginseng: Depending of the dosage, it’s best to take ginseng twice per day; once in the morning and again in the afternoon.

Vitamin E and C

Scuba diving brings with it the necessary exposure to a variety of unfriendly conditions to your body such as increased breathing pressure, air bubbles circulating in the blood, and enlargement of heart chambers due to increased blood flow to the chest. In other words, diving puts strain on your cardiovascular health, that you are less likely to be able to bounce back from as quickly as you age.

Studies show that taking vitamins E and C before a dive might help to offset the stress and strain of scuba diving, particularly on your vascular function.

Best Time to Take Vitamins E and C: Take them daily with breakfast, except on dive days, when you take them about an hour before the dive.

Digestive Enzymes

One of the most over-looked elements in all physical activities, digestion can make or break your time under the water. Remember: You’re swimming at a downward angle as you dive, setting the stage for indigestion, heart burn, and acid reflux.

Digestive enzymes help to promote proper digestion, breaking down those hard-to-digest macronutrients. They might also help you avoid an upset stomach before a dive, especially if you’ve eaten foods that are oily or processed. Read more about the best foods to eat before a dive and those to avoid.

Best Time to Take Digestive Enzymes: If you have trouble digesting food, take one serving with each meal. On dive day, take one serving before you eat, and possibly a second serving after a meal.


A powerful herb used in Ayurvedic medicine, Ashwagandha can be found in a variety of supplements including pre-workouts and testosterone boosters. Used for thousands of years to treat a variety of conditions and promote overall wellness, Ashwagandha might play a special role for your diving routine.

Ashwagandha has been suggested to alleviate stress and anxiety; two things that can quickly ruin a dive. It has been shown to improve energy levels while increasing alertness.

Best Time to Take Ashwagandha: Take daily in the morning. Depending on the brand, you might need a second serving in the afternoon.

Do You Take Supplements Before a Dive?

If so, which supplements do you take? Does ginseng boost your diving performance? Let us know in the comments below!


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