Does Pre Workout Make You Gain Weight?

Almost everyone involved in physical fitness is on the hunt for any extra edge they can get, and that’s a big reason why there’s a steady stream of ‘breakthroughs’ showing up all the time in terms of workout techniques. 

That’s also a big reason why so many different fitness supplements are available on the market, including pre-workout drinks. 

Pre-workout supplements should help you find the motivation and energy for working out, but they might also lead to side effects that backfire on you. Always consult a physician prior to supplement use so that you can skip undesired side effects.


During a hard workout, especially in the heat, you’re likely to sweat quite a bit as your body tries to cool down its rising temperature. Regrettably, many pre-workout drinks make this effect worse given how much caffeine they have in them. 

When taken in big doses, caffeine is something that can make your body temperature go up, possibly contributing to dehydration by working like a diuretic. Also, the University of Maryland Medical Center says that when caffeine is combined with creatine, which is itself a popular ingredient for pre-workout snacks and beverages, the combination might boost your odds of getting dehydrated.


Whether you lift weights, swim, or run, having the ability to control the movements of your body without shaking is best. On the other hand, caffeine, especially in high volumes, can cause jitters, twitching, and uncontrolled muscle movements just because it can excite the human nervous system. 

These uncontrolled movements are annoying in the best of circumstances, but in the worst of circumstances, they’re dangerous. The caffeine in your pre-workout might cause you to do things like dropping a weight, crashing your bike, or having some other workout-related incident.

The Potential For Liver And Kidney Problems

Even though research indicates that including creatine in pre-workout snacks might help you pack on muscle, there’s a price to pay. The University of Maryland Medical Center states that creatine use can result in kidney damage, further warning that anyone with high blood pressure, liver disease, and/or kidney disease needs to avoid this substance.

Gaining Weight

If the reason you work out is so that you can lose weight, then your pre-workout might actually be sabotaging you. On top of caffeine, pre-workout snacks or meals might have lots of carbs to be a source of energy.

If you aren’t monitoring your calories carefully, then pre-workout calories might just accumulate and turn into weight gain. On top of that, gaining weight is already a documented side effect of creatine, so your bathroom scales and waistline might not be too appreciative.

High Blood Pressure

The central ingredients to many pre-workouts are caffeine and creatine, and that’s a potential hazard because they might lead to high blood pressure. The University of Maryland Medical Center states that creatine can cause blood pressure to go up, so anyone with that condition should avoid it. 

Caffeine can likewise instigate substantial increases in a person’s blood pressure, and definitely should be avoided prior to exercises like weightlifting.