🧬 Vitamin B5 and Pantethine: Coenzyme A and Adrenal Support
How pantothenic acid supports energy and hormonal balance
Vitamin B5 (pantothenic acid) is a water-soluble vitamin that the body converts into coenzyme A (CoA). CoA is involved in the metabolism of fats, carbohydrates and proteins, and in adrenal function. Pantethine is its active form.
What is vitamin B5
Pantothenic acid is named from the Greek "pantos" — "everywhere", as it is found in almost all foods. Deficiency is rare. B5 is a precursor of coenzyme A, involved in hundreds of reactions.
- Named from Greek "everywhere".
- Precursor of coenzyme A.
- Involved in metabolism.
- Deficiency is rare.
Coenzyme A and energy
Coenzyme A is a central molecule of energy metabolism. It participates in the Krebs cycle, fatty acid oxidation and acetylcholine synthesis. B5 is required for its formation.
- Participates in the Krebs cycle.
- Fatty acid oxidation.
- Acetylcholine synthesis.
- Key to energy production.
Adrenal glands
Coenzyme A participates in the synthesis of steroid hormones, including adrenal hormones (cortisol, aldosterone). Therefore, B5 is historically linked to adrenal support during stress and fatigue.
- CoA participates in steroid synthesis.
- Adrenal support.
- Important under stress.
- Studied for fatigue.
Pantethine
Pantethine is a stable active form of pantothenic acid. It converts to CoA better and is studied for its effect on the lipid profile (cholesterol, triglycerides).
| Form | Feature | Use |
|---|---|---|
| Pantothenic acid | Base B5 form | Energy, nutrient |
| Pantethine | Active, stable | Lipids, research |
Food: sources
| Food | B5 content | Comment |
|---|---|---|
| Beef liver | ~7 mg/100 g | Rich source |
| Eggs | ~1.5 mg/100 g | Yolk |
| Avocado | ~1.4 mg/100 g | Fruit |
| Mushrooms | ~2 mg/100 g | Champignons |
| Salmon | ~1.6 mg/100 g | Fish |
How much to eat
- Norm 5 mg/day: ~70 g of liver or 300 g of salmon.
- Alternative: eggs + avocado + mushrooms + whole grains.
- B5 deficiency is rare due to its wide distribution in food.
Norms and dosages
| Indicator | Value | Comment |
|---|---|---|
| Daily norm | 5 mg | Adults |
| Pantethine | 300–900 mg | In studies |
| Upper limit | Not set | Safe |
Practice
- B5 from food is usually enough — deficiency is rare.
- Pantethine is used in lipid and stress research.
- For fatigue and stress, B5 is considered supportive.
- Supplements per prescription and label.
- Combine with other B vitamins.
What is vitamin B5?
Pantothenic acid — a water-soluble vitamin, precursor of coenzyme A.
Why is coenzyme A needed?
Involved in fat, carbohydrate and protein metabolism, energy and steroid synthesis.
How does B5 affect the adrenals?
Coenzyme A is involved in adrenal steroid synthesis, so B5 is linked to their support.
What is pantethine?
An active stable form of pantothenic acid, studied for its effect on lipids.
How much B5 a day?
About 5 mg a day; deficiency is rare.
How much pantethine?
In studies, 300–900 mg of pantethine a day.
Which foods have B5?
Liver, eggs, avocado, mushrooms, salmon, whole grains.
Is B5 safe?
Yes, toxicity is not established; no upper limit set.
Does B5 help with fatigue?
B5 is involved in energy production, but serious fatigue needs examination.
Does pantethine affect cholesterol?
Pantethine is studied for its effect on the lipid profile, but the data need confirmation.