From OutsideOnline.com article:
Breakfast
I wake up early and start my day by turning my coffee into a meal. I’ll pull three or four shots of dark-roast espresso and add one scoop of my custom-blend coconut-milk creamer, one scoop of turmeric creamer, a teaspoon of ghee or raw butter, a half-teaspoon of fair-trade red palm oil, a teaspoon of raw coconut, and a mushroom blend that includes shiitake, maitake, lion’s mane, and cordyceps. I emulsify the combination until it’s smooth and drink it before I head out to my morning surf or training session.
Lunch
Midday I usually eat enough for two, because I haven’t had solid food since the evening before. I build my lunch around a serving of high-quality animal protein, like sustainable local fish or chicken. I’ll eat it on a bed of lettuce, cabbage, or kale, topped with avocado or crushed macadamia nuts and dressed with olive oil and vinegar. If it’s available, I’ll add raw-milk cheese to the salad. I try to get my carbs mostly from vegetables. When I’m in Hawaii, I’ll indulge in mashed purple sweet potatoes with coconut milk. While traveling, I do my best to enjoy what’s seasonal or indigenous to that particular location.
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Mr. Aiona paddles with his club on Tuesday and Thursday nights and Saturday mornings for 90 minutes to two hours.They alternate between sprints and endurance paddles of up to eight miles in a six-man outrigger canoe. They also work on paddle technique and do huli drills. “Huli is Hawaiian for turn over,” he explains. “If you flip your canoe there is a very precise process for getting everyone safely and efficiently back in. We call out positions to make sure no one is underneath.
Gravel riding is more jarring than road riding so strength and mobility really come into play. “Your upper body takes much more of a beating,” Mr. Wilwerding says. “Especially when you’re riding bumpy terrain for eight hours.” With the help of a coach, he has trained to participate in five century rides—three road, two gravel—this summer. His next ride, the SBT GRVL, takes place Aug. 18 and covers 141 miles and about 9,000 feet of climbing in Steamboat Springs, Colo. “I’m in the best shape of my life outside of my collegiate swimming career,” he says. 
Intellicurious 