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I learned the hard way just how important electrolytes are while running a marathon.
During my first New York City Marathon in 2022, I didn’t consume nearly enough salt to support all the miles my body was putting in. The result: I hit the infamous “wall” at mile 20, and the rest of the race was an uphill battle (literally…the incline on 5th Avenue is brutal).
Now, three marathons in, I have incorporated electrolytes into both my training block and race day routine. Even though New York Road Runners’ New York City Marathon is a little over two weeks away, it’s not too late for you to do the same.
Whether you’re planning to wear a running belt, vest or carrying a handheld water bottle, you’re likely going to have H20 in tow. While you’re at it, pour some electrolytes into your water.
According to a New York Road Runners article written by Kelly Hogan, MS, RD, CDN, fluids are not enough to support an intense sweat session, especially since the New York City Marathon sometimes gets pretty warm. Sodium is key, and you have to get the balance right. Hogan noted that hyponatremia may occur, “when there is not enough sodium in your blood because you’ve taken in too much water.”
Ahead of the November 1 race, shop the Ultima Replenisher Original Variety Electrolyte Packets on Amazon at a competitive price. Although you most likely only need a few for the actual marathon, your purchase will include 20 stick packs for just $21.
Ultima Replenisher Original Variety Electrolyte Packets
The formula delivers six powerhouse electrolytes — magnesium, calcium, potassium, chloride, sodium and phosphorus — in addition to vitamin C and zinc. The packets are entirely plant-based, gluten-free and vegan with zero calories, sugar or carbs.
And they taste delicious, too. Enjoy lemonade, grape, raspberry, cherry pomegranate and orange flavors, only lightly sweetened with organic stevia leaf extract.
The powder is easy enough to take with you on the go. I suggest bringing one or two to Start Village in Staten Island, then stashing some in your pockets for a mid-race boost.
With over 21,000 positive reviews on Amazon, it’s safe to say you can trust the electrolyte packets to set you up for success.
One shopper wrote, “This is the best electrolyte drink mix I’ve ever tried. It mixes well, tastes great, isn’t loaded with sodium like most of the others. I like that has six different electrolytes and doesn’t use a bunch of chemicals.”
Another agreed, “I was experiencing significant issues with muscle spasms. They were very severe and debilitating. I started using the Ultima Electrolyte and within several days my spasms were history. I stopped taking them for a week and the spasms returned. I love this product and take it every day. Flavors are generally good.”
The New York City Marathon is no small feat. At this point, you’re most likely ready to go, but some added strength in the form of sodium can’t hurt. Shop the Ultima Replenisher Original Variety Electrolyte Packets for just $21 on Amazon now to secure your finish line.
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This article was written by Carrie Berk, Commerce Reporter for the New York Post. Carrie specializes in New York City-ready fashion finds for every style, age and budget. Combing the internet’s sale sections, brand collaborations, seasonal trends, timeless staples and lookalike styles, she makes recommendations that stand the test of time in your wardrobe – without breaking the bank. Before joining The Post full time in 2026, her work appeared in HuffPost, Women’s Health, Newsweek and more.