Why Does Sweat Smell Like Ammonia?

Triaathlon
3 min readApr 28, 2023

--

Sweating is your body’s way of regulating its temperature. When you exercise, your body produces heat, and in response, your sweat glands produce sweat. Sweat is made up of water, salt, and other chemicals, such as urea. Urea is a waste product produced by your liver when it breaks down protein. It’s then carried to your kidneys and excreted in your urine. However, when you exercise, your body may break down more protein than it can excrete, leading to a buildup of urea in your body.

As your sweat mixes with the urea on your skin, it can create an ammonia-like smell. This is because urea breaks down into ammonia when it’s exposed to bacteria on your skin. The more urea that’s present in your sweat, the stronger the ammonia smell will be.

Also read: What to Wear for a Triathlon: The Ultimate Guide

What Does It Mean for Your Body?

If your sweat smells like ammonia, it could be a sign that your body is breaking down protein for energy instead of using carbohydrates or fats. This can happen when you’re not consuming enough carbohydrates, which are your body’s preferred source of energy during exercise. When your body doesn’t have enough carbohydrates to fuel your workouts, it turns to protein for energy instead. This process is called gluconeogenesis.

While gluconeogenesis is a natural process, it’s not an efficient one. Breaking down protein for energy produces more waste products, such as urea, than breaking down carbohydrates or fats. If your body can’t keep up with the rate of waste production, it can lead to a buildup of waste products in your body, which can be harmful.

Another reason your sweat may smell like ammonia is dehydration. When you’re dehydrated, your body produces less urine, which means less urea is being excreted. As a result, the concentration of urea in your sweat increases, leading to a stronger ammonia smell.

How to Fix It

If your sweat smells like ammonia, there are several things you can do to fix it:

Increase your carbohydrate intake

As mentioned earlier, if your body is breaking down protein for energy, it could be a sign that you’re not consuming enough carbohydrates. By increasing your carbohydrate intake, you’ll provide your body with the energy it needs to fuel your workouts, reducing the need to break down protein.

Stay hydrated

Make sure you’re drinking enough water before, during, and after your workouts. This will help keep you hydrated and prevent a buildup of urea in your body.

Drink enough water during the race

During the race, triathletes should drink water or a sports drink at regular intervals to maintain hydration levels. They should also take into account the temperature and humidity of the race course, as well as their own sweat rate, to determine how much water they need to drink.

Monitor your protein intake

While protein is essential for building and repairing muscle tissue, consuming too much can lead to a buildup of waste products in your body. Make sure you’re consuming the right amount of protein for your body’s needs.

Consider taking a break

If you’ve been pushing yourself too hard, it may be time to take a break. Overtraining can lead to a breakdown of muscle tissue, which can increase the amount of protein your body needs to break down for energy.

After the race, triathletes should rest and recover properly to allow their bodies to recover from the physical stress of the race. This includes drinking plenty of water and consuming foods that are rich in protein and carbohydrates.

See a doctor

If you sweat continues to smell like ammonia, it’s best to see a doctor. They can perform tests to determine if there’s an underlying medical condition causing the issue.

Conclusion

Sweat that smells like ammonia can be a sign of dehydration and can indicate a more serious issue for triathletes. Preventing sweat from smelling like ammonia requires proper hydration and nutrition before, during, and after the race. By following the tips above, triathletes can prevent the production of ammonia and ensure they are properly hydrated and fueled for the race.

--

--