How much sodium is considered too much?

As a triathlete who lives and trains in Mumbai, India, where temperatures often exceed 90 degrees Fahrenheit and humidity levels are extremely high, I need to pay special attention to replenishing my electrolytes. It’s not hard to remember, thanks to the endless list of electrolyte companies that are collaborating with influencers and advertising through every possible means.

But a few weeks ago, I was reading the fine print on a Liquid IV stick (anything that causes procrastination on a three-hour trainer ride) and found myself laughing at the recommendation to consume just one stick per day. Like many athletes, I regularly take two, three, or even four bottles of electrolytes on long endurance days.

So how many electrolytes is too many? Am I harming myself by exceeding my daily sodium recommendations? I talked to Alyssa Palladino MS, RDN, LD, CPT — an Atlanta-based registered dietitian and avid runner who regularly works with endurance athletes — found out.

Why is replenishing electrolyte stores so important?

No matter how much (or little) a person trains, electrolytes are non-negotiable. That’s why there are federal recommendations for minerals like sodium, potassium, chloride, magnesium, calcium, and phosphate – all of which have an electrical charge and therefore fall under… Electrolyte umbrellaPalladino explained.

If you feel like you’re getting a boost of energy after drinking a bottle of electrolytes, it’s not an illusion; These minerals affect everything from muscle and heart contraction to blood pressure regulation, Palladino says. If your electrolyte levels drop too low, you may not be able to reap the full benefits of the gels you consume, your fluid balance may fluctuate, and your blood vessel and nerve function may also be affected.

Yes, getting electrolytes through diet and supplements is crucial for everyone, but an athlete who sweats for long periods is more likely to notice the effects of an electrolyte imbalance.

For the everyday consumer, Palladino says, it’s probably not necessary to replenish electrolyte stores with commercial supplements. In fact, such nutritional supplements It can deliver too much sodium For someone who doesn’t exercise much. On the other hand, endurance athletes need to consume more electrolytes. They sweat more and place much higher demands on their bodily systems.

Electrolytes are not lost in equal proportions, which is why the best brands adjust the formulations of their products. Even if you’re not wearing a salty sweater, you lose sodium primarily through sweating, and sodium scarcity will impact your athletic performance and safety more than anything else, Palladino warns. That’s why some products, e.g LMNT Or salt capsules, clearly salty.

Palladino noted that along with sodium, potassium plays key roles in nerve and muscle contraction, while calcium is integral to building strong bones. However, it is not necessary to replenish it during the exercise itself.

Official electrolyte guidelines

The only time I stuck to my Liquid IV mandate of taking one stick per day was when I was pregnant. Like other moms, I felt it was better to be safe than sorry, even as I remained very active. It turns out that it is federally approved DRIs (Dietary Reference Intakes) Each electrolyte varies depending on factors such as age, gender, and life stage. However, Palladino points out that the discrepancies are not related to weight, activity level or health conditions such as high blood pressure.

However, DRIs provide more specific guidance than DRIs Daily valueswhich sets recommended intakes and upper limits for nutrients (these are the general percentages shown on food labels). For example, the DRI for potassium is 3,400 milligrams per day for men over 19, compared to just 2,600 milligrams per day for women in the same age group. In addition, warnings are made for pregnancy and breastfeeding. Meanwhile, the daily value for potassium is just one number: 4,700 milligrams per day.

Endurance athletes shouldn’t limit themselves to these numbers, Palladino says. In reality, there are no magic numbers for this population; How much and how hard you train will affect your needs, as will your sweat rate and composition. An athlete can sweat anywhere from 0.5 to 2 liters per hour, while sodium loss may fall between 500 milligrams to 2,000 milligrams per liter of sweat.

Of course, as the seasons change, the way you sweat changes as well. During the summer, you may need two servings of long-term electrolytes; During the winter, You may only need one.

Find the right balance of electrolytes

Now that we have a better understanding of why electrolytes are important (and why an endurance athlete needs more of them than the average person), we can go back to the question that started it all: How many electrolytes is too many electrolytes?

“Too much of a good thing is usually no longer a good thing,” Palladino says. It is known that excessive sodium consumption and high blood pressure go hand in hand, and athletes are not immune to the fluid retention and increased blood volume associated with high blood pressure.

Hypernatremia (too much sodium in the blood)

Hypernatremia, or high levels of sodium in the bloodstream, can occur if you’re not accompanied by enough fluids. Symptoms include abnormally high levels of thirst, muscle cramps, dizziness, nausea, and fatigue. In extreme cases, hypernatremia can cause seizures and even coma.

Your body will likely tell you ahead of time if you’re consuming too many electrolytes — for example, by asking you to find a bathroom if you have too much magnesium or by alerting you to one of the aforementioned, less serious signs of hypernatremia. If you pay enough attention to your body, you will be able to walk properly and have a better chance of finishing your workout or race successfully.

If you really want to improve your hydration strategy, it may be worth investing in Sweat test. The results will help you determine how many fluid ounces to drink each hour. How many milligrams of sodium? To aim, and more. But remember: conditions like weather and even diet will change your ideal ranges.

Hyponatremia (not enough sodium in the blood)

It’s not uncommon for an endurance athlete to encounter the opposite problem, Palladino warned. If your water bottle only contains water, you could dilute your blood concentration and end up dead Hyponatremia. No matter how much an athlete worries about the sugar in electrolyte supplements damaging their teeth, or the high cost of these products, or “breaking the rules” by exceeding the recommended daily intake, hyponatremia is the worst. It can cause severe headaches, nausea, vomiting, and, at its most extreme: confusion, seizures, and coma.

Timing your electrolytes

Palladino recommends fluid and sodium intake before long endurance sessions and races, especially when facing hot and/or humid conditions. Given the demands that a sport like triathlon places on the gut, this may be particularly beneficial for athletes who balk at the idea of ​​sipping another bottle of electrolytes mid-ride or run.

In moderate conditions, most athletes will only need to worry about sipping fluids and increasing sodium stores during low-intensity workouts. You can replenish your carbs at the same time if you choose the right hydration blends from brands like Skratch, Tailwind, Momentus, and Precision.

After workouts, Palladino says the athlete should replenish the fluids and electrolytes they were unable to consume during the session.

The final word on electrolytes

As with many other aspects of training, racing and diet, that old adage remains true: listen to your body. Don’t treat yourself like an ordinary consumer, because you’re not (remember, Not even 1% of Americans They call themselves triathletes.)

At the same time, don’t put spoonfuls of salt in your water bottle thinking you’re doing yourself a favor. Your body will give you real-time feedback, and it’s your responsibility to listen.