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Fatigue to Fitness: The Power of Vitamin B12 for Energy and Exercise

Posted by Aaron Sandberg on

Do you struggle to find the energy to push through a hard workout? If so, you might be lacking a vital nutrient that helps you power through your workouts and crush your fitness goals: vitamin B12. In this article, we will explore the benefits of vitamin B12 for energy and exercise, and how you can incorporate this essential nutrient into your daily routine.

What is Vitamin B12?

Vitamin B12, also known as cobalamin, is a nutrient that is essential for the proper functioning of the body. It is responsible for many important functions, including the production of red blood cells, the maintenance of healthy nerve cells, and the synthesis of DNA. But did you know that vitamin B12 can also help improve your energy levels and enhance your exercise performance?

The Science Behind Vitamin B12

Vitamin B12 is a water-soluble vitamin naturally found in a variety of foods, including meat, fish, eggs, and dairy products. It is also available in supplement form, which can be particularly useful for vegans and vegetarians who may not get enough vitamin B12 from their diets.

Scientific studies have shown that vitamin B12 plays a crucial role in the metabolism of energy in the body. It helps convert the food we eat into glucose, which is the primary source of energy for our cells. Without enough vitamin B12, our bodies cannot produce enough red blood cells, which means we become fatigued more easily and have less energy to power through our workouts.

Vitamin B12 and Exercise Performance

In addition to its energy-boosting effects, vitamin B12 is also known for its ability to boost exercise performance. Studies have shown that athletes who have adequate levels of vitamin B12 in their bodies have better endurance, faster reaction times, and improved strength compared to those who are deficient in this essential nutrient.

One study conducted on 23 male athletes found that supplementing with vitamin B12 significantly improved their physical performance and reduced their levels of fatigue during exercise. Another study on female athletes found that vitamin B12 supplementation improved their aerobic capacity and helped them maintain a higher level of intensity during workouts.

How to Incorporate Vitamin B12 into Your Diet

If you're looking to improve your energy levels and enhance your exercise performance, incorporating vitamin B12 into your diet is a great place to start. Some of the best dietary sources of vitamin B12 include:

- Meat (beef, chicken, pork)

- Fish (tuna, salmon, trout)

- Dairy products (milk, cheese, yogurt)

- Eggs

If you're a vegan or vegetarian, you can still get enough vitamin B12 by consuming fortified cereals, plant-based milks, and nutritional yeast. You can also take a vitamin B12 supplement to ensure you're getting enough of this essential nutrient.

Including B12 Into Your Exercise Routine

Various supplement forms of Vitamin B12 are available on the market, but if you want a practical approach to supplementing it, try Gym Rat Fuel's pre-workout gummies. Not only are they delicious, but they also contain Vitamin B12 and other essential pre-workout components like VasoDrive-AP, L-Theanine, caffeine, and PurpleForce. Simply chew a few gummies before your workout, and you'll be all set.


Vitamin B12 is a safe and effective way to boost your energy levels and enhance your exercise performance. By incorporating vitamin B12-rich foods into your diet or supplementing with Gym Rat Fuel’s pre-workout gummy, you will have the energy to power through your workouts and crush your fitness goals with ease.


Lee MC, Hsu YJ, Shen SY, Ho CS, Huang CC. A functional evaluation of anti-fatigue and exercise performance improvement following vitamin B complex supplementation in healthy humans, a randomized double-blind trial. Int J Med Sci. 2023 Aug 15;20(10):1272-1281. doi: 10.7150/ijms.86738. PMID: 37786445; PMCID: PMC10542023.

Markun S, Gravestock I, Jäger L, Rosemann T, Pichierri G, Burgstaller JM. Effects of Vitamin B12 Supplementation on Cognitive Function, Depressive Symptoms, and Fatigue: A Systematic Review, Meta-Analysis, and Meta-Regression. Nutrients. 2021 Mar 12;13(3):923. doi: 10.3390/nu13030923. PMID: 33809274; PMCID: PMC8000524.

Paulin FV, Zagatto AM, Chiappa GR, Müller PT. Addition of vitamin B12 to exercise training improves cycle ergometer endurance in advanced COPD patients: A randomized and controlled study. Respir Med. 2017 Jan;122:23-29. doi: 10.1016/j.rmed.2016.11.015. Epub 2016 Nov 22. PMID: 27993287.

Tin-May-Than, Ma-Win-May, Khin-Sann-Aung, Mya-Tu M. The effect of vitamin B12 on physical performance capacity. British Journal of Nutrition. 1978;40(2):269-273. doi:10.1079/BJN19780122.

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