This list includes 6 vitamins that start with P, from “Pantothenic acid” to “Pyridoxine”. These Vitamins that start with P are mostly B-complex nutrients involved in energy production and nervous system support. You’ll see common food sources and typical uses like metabolism support and anemia prevention.

Vitamins that start with P are essential micronutrients whose names begin with the letter P. Pantothenic acid and pyridoxine are notable examples used widely in diet and clinical practice.

Below you’ll find the table with Name, Benefit, Primary food sources, and RDI (with caveats and source).

Name: Short scientific or common name of each vitamin, so you can quickly identify the nutrient you want to research.

Benefit: One-line summary of main health effects, so you can quickly see why the vitamin matters.

Primary food sources: Lists 3–5 foods where you’ll find the vitamin, helping you plan meals rich in that nutrient.

RDI (with caveats and source): Shows recommended intake values with age/gender notes and a citation so you can check authoritative guidance.

Vitamins that start with P

NameSynonyms / Chemical namesRDI (adult) & notesPrimary food sources
Pantothenic acidVitamin B5, pantothenate, pantothenic acid5 mg/day (adult); source: NIHChicken, beef, eggs, whole grains, mushrooms
PyridoxineVitamin B6, pyridoxine, pyridoxine hydrochloride1.3 mg/day (adults 19–50); men 51+ 1.7 mg/day, women 51+ 1.5 mg/day; source: NIHPoultry, fish (salmon), potatoes, bananas, chickpeas
PyridoxalPyridoxal, pyridoxal phosphate (PLP), vitamin B6 vitamer1.3 mg/day (adults 19–50); men 51+ 1.7 mg/day, women 51+ 1.5 mg/day; source: NIHChicken, fish, potatoes, bananas, fortified cereals
PyridoxaminePyridoxamine, vitamin B6 vitamer1.3 mg/day (adults 19–50); men 51+ 1.7 mg/day, women 51+ 1.5 mg/day; source: NIHMeat, fish, dairy, legumes, whole grains
PhylloquinoneVitamin K1, phylloquinone120 µg/day (adult men), 90 µg/day (adult women); source: NIHKale, spinach, broccoli, Brussels sprouts, romaine lettuce
PhytonadionePhytonadione, vitamin K1 (synthetic)120 µg/day (adult men), 90 µg/day (adult women); source: NIHLeafy greens (spinach, kale), broccoli, Brussels sprouts, vegetable oils

Descriptions

Pantothenic acid
Pantothenic acid (vitamin B5) helps make energy from carbs, fats and proteins and is essential for coenzyme A production; it supports metabolism and skin health.
Pyridoxine
Pyridoxine (a form of vitamin B6) supports neurotransmitter production, mood regulation, and amino acid metabolism, and helps form red blood cells.
Pyridoxal
Pyridoxal is a vitamin B6 form that converts to PLP, the active coenzyme for many enzymes involved in amino acid and neurotransmitter metabolism.
Pyridoxamine
Pyridoxamine is another natural form of vitamin B6 that can be converted to the active coenzyme PLP and participates in metabolic enzyme reactions.
Phylloquinone
Phylloquinone (vitamin K1) is crucial for blood clotting and also supports bone health by activating proteins that bind calcium.
Phytonadione
Phytonadione is the synthetic form of vitamin K1 commonly used in supplements and medical injections to prevent or treat vitamin K deficiency–related bleeding.
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