What is Vitamin B5 (Pantothenic Acid)?
Vitamin B5, also known as pantothenic acid, is an essential water-soluble vitamin that plays a crucial role in energy metabolism, neurotransmitter synthesis, and the production of coenzyme A (CoA) [1]. As a key component in numerous metabolic processes, pantothenic acid is vital for cognitive performance and brain health [2].
Pantothenic acid plays several crucial roles:
- Acts as a precursor for CoA, essential for energy metabolism and fatty acid synthesis
- Supports the synthesis of cholesterol, steroid hormones, and neurotransmitters
- Contributes to the metabolism of fats, proteins, and carbohydrates
- Supports the adrenal glands and stress response
- Functions in the formation of red blood cells [3]
The science behind B5.
- Energy metabolism — A study in the Journal of Nutritional Science and Vitaminology found pantothenic acid deficiency can impair energy metabolism [4].
- Stress response — Research in Nutritional Neuroscience suggests pantothenic acid may help mitigate the negative effects of stress on cognitive function [5].
- Neurotransmitter synthesis — A study in the Journal of Clinical Biochemistry and Nutrition highlighted the importance of B vitamins (including B5) in neurotransmitter synthesis [6].
- Neuroprotection — A study in Oxidative Medicine and Cellular Longevity found pantothenic acid could protect against oxidative stress in brain cells [7].
- Cognitive function — A review in Nutrients emphasised the importance of B vitamins for cognitive health [8].
Benefits of Vitamin B5.
- Energy metabolism — CoA production for cellular energy [9].
- Stress response — Supports adrenal function [10].
- Neurotransmitter synthesis — Involved in acetylcholine production [11].
- Neuroprotection — May protect brain cells from oxidative stress [12].
- Cognitive function — Indirectly supports cognition [13].
- Lipid metabolism — Crucial for brain health [14].
- Overall brain health — Foundational for cognitive wellness [15].
Dosage and our approach.
The RDA for pantothenic acid is 5 mg per day for adults. A study in Nutritional Neuroscience used 60 mg daily and found benefits for stress response [16].
5 mg — 83% NRV. Aligned to RDA. Focus for decades, not minutes.
Pantothenic acid has a short half-life of 2–3 hours. The body doesn't store large amounts, so regular intake is necessary [17].
Potential side effects.
In short.
Vitamin B5 is an essential nutrient supporting energy metabolism, stress response, and neurotransmitter synthesis. Its true power lies in long-term benefits — consistent intake over time is key.