đââď¸ Pro Tip for Endurance Runners: Donât Let B Vitamins Slip Through the Cracks
- FiTBodyMD
- Jun 28
- 2 min read
If you're logging serious miles, your bodyâs demand for B vitaminsâespecially B12 and the full B-complexâgoes into overdrive.
Here's why:
Vitamin B12Â supports red blood cell production and neurological function, both critical for oxygen delivery and neuromuscular coordination during long runs. Even marginal deficiencies can lead to fatigue, sluggish recovery, and decreased VOâ max.
B-Complex (B1âB9)Â fuels your mitochondrial machinery. These vitamins act as coenzymes in energy metabolism, helping convert carbs, fats, and proteins into usable fuel. The higher your mileage, the more B-complex you burn through.
Subcutaneous (sub-Q) vitamin injections offer a compelling advantage over traditional IV drips for athletes seeking long-term nutrient optimization. Unlike IV drips that deliver nutrients rapidly into the bloodstreamâoften leading to transient spikes and urinary excretionâsub-Q injections release vitamins more gradually, mimicking the bodyâs natural absorption rhythm. This steady uptake supports sustained blood levels, enhances cellular utilization, and reduces the likelihood of overwhelming metabolic pathways. Plus, sub-Q injections can be self-administered with minimal training, making them a more practical and cost-effective option for ongoing performance support. For athletes looking to build consistency and autonomy in their health protocols, sub-Q wins for bioavailability and convenience.
𼣠Endurance Hack: Pair a methylated B-complex (especially if you're MTHFR-sensitive) with iron-rich foods or heme iron supplements to supercharge red blood cell formation.
đ§ Bonus: Chronic training stress can deplete B levels fasterâespecially in plant-based athletes or those with gut absorption issues. So testing B12 levels periodically isnât just smart... itâs performance insurance.
Looking to elevate your game? At FitbodyMD, we donât do one-size-fits-all. We craft customized vitamin formulations tailored to your unique performance, recovery, and lifestyle needs. Whether you're chasing podium finishes or simply your personal best, our athlete-focused protocols use bioavailable nutrients and precision delivery methodsâincluding subcutaneous optionsâfor long-lasting impact.
đââď¸đĽ Stronger. Smarter. Personalized. Thatâs the FitbodyMD edge. Come see why more athletes are choosing science-backed solutions built just for them.

Disclaimer # 1: The medical information provided in this content is for educational purposes only and should not be used as a substitute for professional medical advice, diagnosis, or treatment. Always consult your doctor or a qualified healthcare provider with any questions you may have regarding a medical condition or treatment. Never disregard professional medical advice or delay seeking it because of something you have read here.
Disclaimer # 2:Â The mention of brand names in this content is for informational purposes only and does not constitute an endorsement or recommendation. Product suitability may vary based on individual needs, preferences, and medical conditions. Always consult your healthcare provider or a qualified medical professional before using any compression stockings or related products to ensure they align with your specific health requirements.
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