Can Pre-Workout Supplements Make You Sick?

If you’re wondering whether pre-workout supplements can make you sick, the answer is unfortunately, yes. In some cases, these supplements can contain harmful ingredients that can cause nausea, vomiting, and other unpleasant side effects. If you’re considering taking a pre-workout supplement, be sure to do your research and only purchase from a trusted source.


Pre-workout supplements have been used in the fitness industry for decades, providing people with a boost in energy and performance. While these supplements can be helpful for those looking to increase their workout intensity, there are potential risks associated with pre-workout supplements that should be considered before consuming them. In this guide we will discuss not only the benefits of taking pre-workout supplements, but also some of the common side effects and health risks associated with them. It is important to note that everyone’s body is different and their reaction to pre-workout supplements may vary, so it is important to do your own research before beginning any supplementation program.

What are Pre-Workout Supplements?

Pre-workout supplements are nutritional products used before physical activity to improve performance and increase energy levels. They come in various forms including powders, drinks, bars and gels. Generally, pre-workout supplements contain a wide range of ingredients such as vitamins, electrolytes, amino acids, herbal extracts and caffeine. With the current explosion of fitness culture, pre-workout supplements have become increasingly popular among athletes and casual fitness enthusiasts alike.

While many of these products have legitimate use in special cases or under professional supervision (such as for bodybuilding competitions or intense physical activities), they can be dangerous when taken incorrectly or in a misinformed way – which is unfortunately very common. It is important to do your research before starting any supplementation program and speak to a health care provider about any potential risks or side effects before use.

Generally speaking, pre-workout supplements can cause headaches, nausea and dizziness when used incorrectly or without proper understanding of how they work can make you quite ill with adverse reactions that may include difficulty breathing or heart palpitations.

Benefits of Pre-Workout Supplements

Pre-workout supplements are intended to provide specific nutrients to help enhance athletic performance. They are typically used by athletes or bodybuilders for a variety of reasons, such as increasing energy and alertness, reducing fatigue, improving endurance and strength, improving physical performance and promoting recovery after exercise. While pre-workout supplements can be beneficial in providing certain nutrients that might otherwise be lacking in your diet, they do have some risks associated with them. It is important to be aware of these risks before taking pre-workout supplements.

Benefits of Pre-Workout Supplements
When taken correctly and as recommended by the manufacturer, these supplements can offer a number of benefits to athletes and bodybuilders. Many provide an immediate source of energy that helps improve alertness during exercise, which can lead to improved performance. These products also contain creatine and amino acids which have been shown to promote strength gains when combined with resistance training. Additionally, many pre-workout supplements provide additional electrolytes for improved hydration during rigorous workouts or events. Finally, some products contain adaptogen herbs which have been traditionally used for overall stress reduction or mental focus improvements.*

*It is important to note that pre-workout supplements may contain ingredients not yet approved by the FDA (such as some adaptogen herbs). Be sure you are aware of any potential risks associated with the product before use.

Side Effects of Pre-Workout Supplements

Pre-workout supplements, like any other dietary supplement, can have certain side effects. Many of these side effects are minor, such as mild stomach discomfort, tingling sensation, and increased heart rate. However, there is a potential for more serious side effects from the use of pre-workout supplements, and it is important to be aware of them. This section will cover all the potential side effects of pre-workout supplements so you can decide whether or not to take them.

High Blood Pressure

Pre-workout supplements are taken to boost energy, performance, and focus during physical exercise. As with any type of supplement, pre-workout supplements have been known to have side effects. One of the more serious side effects of these supplements is high blood pressure.

The active ingredients in many pre-workout supplements are stimulants, including caffeine and guarana extract. These stimulants can increases heart rate and cause an increase in blood pressure due to the stimulation of the circulatory system. Additionally, ingredients such as arginine increase nitric oxide which can also raise blood pressure levels.

It is important for those who use pre-workout supplements to be aware of their potential side effects and risks on health conditions such as high blood pressure before starting a new supplement regimen or making any changes to current medications or treatments. If you experience a rapid change in your heart rate or an increase in your blood pressure while taking a pre-workout supplement, discontinue use immediately and consult your doctor right away.

Nausea and Vomiting

Nausea and vomiting are potential side effects of pre-workout supplements, particularly when they contain large amounts of stimulants, such as caffeine. When you take these stimulants before exercise, you can end up feeling jittery or anxious which can cause an upset stomach. This paired with the energy boost the stimulants provide can result in nausea and vomiting. Additionally, some pre-workout supplements contain substances like creatine and beta-alanine that can be psychoactive and create feelings of unease when taken before strenuous physical activity. If nausea or vomiting presents after taking a pre-workout supplement, be sure to speak to your physician to discuss possible causes and treatments.

Kidney Damage

The use of pre-workout supplements has become increasingly popular in recent years, with many hoping to increase performance and get a better workout. However, those looking to use pre-workouts should be aware of the possible side effects that can occur with improper dosages and ingredients. One possible side effect of taking pre-workouts is kidney damage, which can be a serious health risk if not addressed properly.

As with any supplement, it is important to understand the ingredients in the products you are taking and make sure you research them thoroughly before using them. If at all possible, consult your physician before using any supplements.

Creatine is often found in pre-workout supplements, and it is known to cause an increase in creatinine levels in the blood when taken regularly. This can damage the kidneys, as they cannot easily filter out all of the excess creatinine being produced. Over time this could potentially impair their functioning and lead to other complications.

High doses of caffeine are also thought to contribute to potential kidney damage due its diuretic effect on the body. It can increase urine production and salt excretion, leading to a decrease in fluid levels that can cause dehydration as well as making it harder for toxins like creatinine to pass through kidneys more easily.

Overall, while pre-workout supplements have their uses and benefits for certain people looking for performance enhancement, it’s important for you to be aware of potential risks involved with using them including possible kidney damage if not monitored correctly or taken responsibly by following proper dosage instructions or checking with a doctor before taking them.


Dehydration is a common and often underestimated side effect of pre-workout supplements. It is important to stay hydrated during physical activity, but taking a pre-workout can amplify the dehydration effects. When you take pre-workouts, it increases the amount of fluid lost during working out through sweating and improve in urination output. Therefore, it is important to drink adequate amounts of water before, during and after exercise if you plan on taking a pre-workout supplement.

In addition to regular water consumption, athletes may also wish to consider electrolyte drinks or sports drinks that contain sugar or carbohydrates for additional energy needs. Dehydration can cause fatigue, muscle cramping, decreased performance and even heat exhaustion or heat stroke in extreme cases if not addressed adequately. Symptoms may include thirstiness, dizziness, lightheadedness and confusion. With proper hydration levels maintained through drinking more fluids than usual when taking a pre-workout supplement these issues can be avoided.

Muscle Cramps

Pre-workout supplements are designed to increase energy and boost performance. However, they can also come with a range of side effects, such as muscle cramps. While occasional cramping may not be cause for alarm, recurrent muscular pain or soreness can indicate the need to change your routine or reduce your supplement intake.

Muscle cramps can be caused by a variety of factors, including an electrolyte imbalance or dehydration. Pre-workout supplements may contain large amounts of caffeine and other stimulants that can cause these elements to become unbalanced in the body. In addition, some pre-workouts contain diuretics that can further contribute to dehydration.

It is important to be aware of how pre-workout supplements may affect you and how much caffeine you are consuming overall throughout the day, as many foods and beverages also contain varying amounts of caffeine in addition to pre-workouts. Consuming too much caffeine on top of other stimulants from pre-workouts can eventually lead to dependency and withdrawal symptoms, including severe muscle cramping.

If you think your pre-workout supplement is causing muscle cramps, try reducing your dosage or using an electrolyte beverage when working out (such as coconut water) to help prevent further complications.


Taking pre-workout supplements can cause a range of side effects, one of which is a headache. Many pre-workout supplements contain caffeine, which has been found to be one of the leading causes of headaches. These headaches can range from mild to severe, and can last for several hours after taking the supplement. Other ingredients in these supplements such as nitric oxide and B vitamins may also play a role in causing headaches, as studies have shown that such ingredients can cause an increase in blood pressure and lead to increased headaches. Some other potential causes of headaches include dehydration, electrolyte imbalance and overstimulation from too much caffeine or other stimulants contained within the pre-workout supplement. Allergic reactions and sensitivity to particular components found in these supplements may also play a role in causing headaches. If you are experiencing frequent or sudden onset headaches due to taking pre-workout supplements, it is advisable to cease usage immediately and consult with a physician before resuming use.

Gastrointestinal Issues

Gastrointestinal (GI) issues are a common side effect of taking pre-workout supplements. Nausea, acid reflux and other related digestive problems have been reported when using certain ingredients, such as caffeine and yohimbe. To avoid GI issues caused by pre-workout supplementation, start with a small dose and gradually increase it over time. Some people find that taking the supplement with food or with a glass of water helps to reduce any potential gastrointestinal side effects.

In some cases, GI issues may be due to the high levels of sugar in pre-workout formulations. High sugar content can cause imbalances in the natural gut bacteria and result in uncomfortable bloating, gas pains or cramps. To minimize GI discomfort when using pre-workouts supplementations, look for formulas that contain only natural sweeteners like monk fruit extract or stevia rather than artificial sugars like sucralose or aspartame.

How to Avoid Pre-Workout Supplement Side Effects

Pre-workout supplements can help to boost your energy, focus and performance. Unfortunately, some of these supplements also come with potential side effects. This article will explore the potential risks and side effects associated with pre-workout supplements and how you can reduce the chances of experiencing them.

Read the Label

If you are planning to take a pre-workout supplement, it is important to read the label in order to understand all of the ingredients and their safety. Choose supplements that have natural ingredients and clearly list the amount of each ingredient. All of the ingredients should be recognizable and not contain a lot of chemicals or fillers. Also look for signs that the product was manufactured in a certified laboratory as this adds another level of quality assurance.

In addition, make sure your supplement does not contain any banned substances. Check out organizations like Informed-Choice or NSF International to ensure that supplements do not contain any banned ingredients. Look at what other users have experienced when taking a particular supplement and take note if they have reported any adverse side effects such as jitters, stomach aches, nausea or headaches. Finally, keep track of your own body’s reaction while taking a supplement and consult with your doctor if you experience any unexpected side effects.

Start with a Low Dose

Consuming too much of a pre-workout supplement can result in unpleasant side effects. To minimize the potential for these, start off with a dose that is lower than those recommended on the product labels. Start gradually, taking only half a scoop at first and then gradually increase the amount after carefully monitoring your body’s response. Be aware that too much of pre-workout supplement can produce feelings of anxiety and jitters, as well as nausea, stomach discomfort and headaches. Additionally, pre-workouts contain ingredients such as caffeine which may interact with other medications you might be taking. To minimize the risk of adverse effects, it’s important to follow the warnings listed on all dietary supplements and speak with your doctor if you are unsure about any contraindications.

It may take some experimenting to figure out which dose works best for you; this goes for any product with stimulants or ingredients like creatine or beta alanine since these might cause headaches or itches in some people at high doses. Don’t overdo it, though—continue to monitor your body’s response when increasing serving sizes as too much can cause an energy crash later on.

Don’t Mix with Alcohol

Alcohol is known to increase the absorption of pre-workout supplements, resulting in higher levels of caffeine and other ingredients circulating in your system. This can cause restlessness, headaches, irritability, and a racing heartbeat. The combination of alcohol and pre-workout supplements also increases the risk of dehydration due to dehydration-causing properties in each substance. High levels of caffeine are also known to impair sleep cycles when taken within six hours before going to bed. Therefore, it is recommended that you avoid mixing pre-workouts with alcohol entirely or at least limit your intake. Additionally, it is important to properly hydrate with water when consuming a pre-workout supplement.

Drink Plenty of Water

Drinking adequate amounts of water is essential to maintaining health and reducing the risks associated with taking pre-workout supplements. Water helps flush out waste products from the body and can help to reduce the risk of dehydration from excessive sweat during exercise. Additionally, water helps to reduce any side effects associated with many types of pre-workout supplements, such as cramping or headaches. To reduce side effects, be sure to drink plenty of water before and after your workout or when you take your supplement. Recommended amounts vary depending on age, activity level, and other factors, but most people should aim for eight glasses of water per day.


The use of pre-workout supplements can have both positive and negative consequences on your health. Most pre-workout supplements contain caffeine, which can improve your performance while exercising but can also cause some adverse reactions such as nausea, headaches and jitters. Some products also include ingredients that may not be safe to ingest, so it is important to be familiar with the ingredients before taking them.

Before you start taking a pre-workout supplement, consider speaking with a doctor or dietitian to make sure that the product does not pose a risk for any underlying health conditions you may have. Additionally, read the ingredients list carefully so that you don’t take anything that may be harmful. Finally, keep in mind that hydration is essential for optimal physical performance and should always be addressed before taking any sort of supplement.

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