Vitamin B5 (Pantothenic Acid)Vitamin

• Cholesterol and triglycerides — pantethine, not plain B5Likely helps

  This result belongs to pantethine, a derivative, rather than to pantothenic acid itself [1].
  
  A 2005 review of 28 small trials (646 adults, median dose 900 mg/day) found triglycerides down 14.2% at 1 month and 32.9% at 4 months. LDL fell 10.4% and 20.1% at the same two points.
  
  Later placebo-controlled trials at 600-900 mg/day for up to 16 weeks confirmed smaller but still significant drops in total and LDL cholesterol. ^[1]

• Plain pantothenic acid does not do the same thingNot shown to help

  Don't read the pantethine result across to a B5 capsule.
  
  Both NIH ODS and the Linus Pauling Institute state that pantothenic acid in its plain form does not appear to share pantethine's lipid-lowering effect [5].
  
  They are different molecules at different points on the coenzyme-A pathway, sold under overlapping marketing. ^[5]

• AcnePossibly helps

  A 2014 randomized, double-blind, placebo-controlled trial gave 41 evaluable adults a 2.2 g/day oral pantothenic-acid-based supplement for 12 weeks [10].
  
  Total facial lesion count fell 68.2% further than on placebo, alongside better quality-of-life scores and no serious adverse effects.
  
  It was a test of a 1995 hypothesis paper's proposal that local pantothenic acid and coenzyme-A shortfall contributes to acne vulgaris [9]. The trial authors themselves ask for replication, given the size and the 12-week window. ^[10]

• Wound repair after surgery — the route decides the answerPossibly helps

  Oral and topical diverge sharply here, exactly the kind of gap that gets glossed over.
  
  Early controlled trials in tattoo-removal surgery patients found oral vitamin C plus pantothenic acid at 200-900 mg/day for 21 days made no significant difference to wound repair [5].
  
  Topical dexpanthenol, a different form on a different route, carries much stronger evidence — see the forms table below. ^[5]

• Athletic performance and 'energy'Possibly helps

  Claims that B5 lifts athletic performance or energy beyond its ordinary metabolic role are not well supported by the trial evidence found [1].
  
  One supplement-database summary graded an early pantethine-combination performance study as showing no clear benefit, while calling for more research. ^[1]

• Numbness and burning in the hands and feet — historically called 'burning feet syndrome', or nutritional melalgia
• Headache, fatigue and irritability
• Restlessness and disturbed sleep
• Gastrointestinal upset: nausea, vomiting, stomach cramps and loss of appetite
• Biochemically, urinary excretion under 1 mg/day or whole-blood concentration under 1 micromol/L, against a normal range of 1.6-2.7 micromol/L
• Status is not routinely measured in healthy people, so these markers come up only when deficiency is already suspected^[1]

• Calcium pantothenateThe default oral form — 10 mg in a typical multivitamin, up to 1,000 mg standalone

  Elemental content

  The calcium salt of pantothenic acid, and the most common oral supplement form

  Absorption

  NIH's Office of Dietary Supplements states plainly that no study has directly compared bioavailability across these oral forms.
  
  So a label claiming one form absorbs better than another has no head-to-head human data behind it.

  Best for

  The default oral form — 10 mg in a typical multivitamin, up to 1,000 mg standalone [1]

• Plain pantothenic acidCovering the 5 mg/day Adequate Intake, which most diets already reach

  Elemental content

  The vitamin itself, unsalted

  Absorption

  Taken orally at much the same doses as calcium pantothenate.
  
  Acne trials went considerably higher, to around 2.2 g/day.

  Best for

  Covering the 5 mg/day Adequate Intake, which most diets already reach [1]

• PantethineCholesterol management — an approved use in Japan, a dietary supplement in the US

  Elemental content

  A dimeric derivative of pantetheine, one step further along the coenzyme-A pathway

  Absorption

  Generally well tolerated up to about 1,200 mg/day.
  
  Nausea and heartburn have been reported at those doses [5].

  Best for

  Cholesterol management — an approved use in Japan, a dietary supplement in the US [5]

• Panthenol and dexpanthenolThe topical form, and the one with real wound-care evidence behind it

  Elemental content

  A stable alcohol analogue; dexpanthenol is its active D-isomer

  Absorption

  Penetrates skin well and converts rapidly to pantothenic acid in tissue [7].
  
  It raises stratum corneum hydration, supports fibroblast proliferation, and speeds re-epithelialization.
  
  Studied at 2-5% in ointments, creams and solutions for burns, post-laser wounds and cracked nipples [8].

  Best for

  The topical form, and the one with real wound-care evidence behind it [7]

• Dietary, food-bound pantothenic acidThe route supplying the roughly 6 mg/day a typical US mixed diet delivers

  Elemental content

  Mostly bound as coenzyme A or phosphopantetheine in food

  Absorption

  Estimated food bioavailability of about 40-61% [1].
  
  The bound forms have to be enzymatically freed in the gut before absorption can happen.

  Best for

  The route supplying the roughly 6 mg/day a typical US mixed diet delivers [1]

• 'No known interactions' comes with a caveat

  NIH's Office of Dietary Supplements states pantothenic acid has no clinically relevant interactions with medications [1].
  
  WebMD reports the same for foods, drinks and medicines, while noting its drug-interaction research base is incomplete [14].
  
  No source reviewed here described any specific interaction with cholinesterase inhibitor drugs. ^[1]

• Who actually risks running short

  Deficiency takes extreme circumstances, but a few groups carry real risk [1].
  
  Eating disorders, severe malabsorption such as inflammatory bowel disease, and long-term intravenous feeding are the ones NIH ODS names.
  
  Separately, people with pantothenate kinase-associated neurodegeneration (PKAN) convert pantothenic acid to coenzyme A poorly, which brings dystonia, spasticity and pigmentary retinopathy.
  
  Whether supplementation helps them is unclear, though anecdotal reports suggest benefit in some atypical cases. Cleveland Clinic puts PKAN's global prevalence at 1-3 per million people [6]. ^[1]

• High-dose biotin alongside B5 — one serious case report

  A published case report describes a 76-year-old woman who developed life-threatening eosinophilic pleuropericardial effusion [11].
  
  She had taken biotin at 10 mg/day plus pantothenic acid at 300 mg/day for two months. Symptoms resolved after she stopped both vitamins [5].
  
  This is one isolated report, not a pattern from controlled trials. Causality and how far it generalizes are both uncertain. ^[11]

• Biotin absorption at large B5 doses

  At large doses, pantothenic acid can compete with biotin for absorption [5].
  
  The two share an intestinal and cellular transporter, the sodium-dependent multivitamin transporter (hSMVT). ^[5]

• Pantethine with statins or niacin

  Pantethine combined with statins or niacin may produce additive lipid-lowering effects [5].
  
  That is a dosing consideration for anyone already on lipid medication, not a free upgrade to stack unsupervised. ^[5]

• Estrogen-progestin oral contraceptives

  Oral contraceptives containing estrogen and progestin may raise pantothenic acid requirements [5].
  
  The Linus Pauling Institute frames this as a shift in requirement, not a contraindication. ^[5]

Pantothenic acid shows up in almost every plant and animal food, though concentrations vary enormously [1].

Against the FDA Daily Value of 5 mg, NIH ODS's richest common sources are:

Beef liver, boiled, 3 oz — 8.3 mg (166% DV)

Fortified breakfast cereal — 5 mg (100% DV)

Shiitake mushrooms, cooked, ½ cup — 2.6 mg (52% DV)

Sunflower seeds, ¼ cup — 2.4 mg (48% DV)

Chicken breast, roasted and skinless, 3 oz — 1.3 mg (26% DV)

Bluefin tuna, cooked, 3 oz — 1.2 mg (24% DV)

Avocado, half a fruit — 1.0 mg (20% DV)

Moderate contributors at 10-18% DV: 2% milk, white mushrooms, baked potato, hard-boiled egg, vanilla Greek yogurt and 85% lean ground beef.

Smaller ones at 2-10% DV: peanuts, broccoli, whole-wheat pita, chickpeas, brown rice, oats, cheddar, carrots, cabbage, clementine and tomatoes.

Two things cut into all that. Processing and cooking losses run from about 20% to nearly 80% depending on method, and the body absorbs only an estimated 40-61% of dietary pantothenic acid [1].

No clinical research on timing exists for pantothenic acid specifically. What follows is general B-vitamin consumer guidance rather than trial evidence [12].

Morning is the consistent recommendation from Cleveland Clinic and EatingWell, since B vitamins feed energy metabolism and some people find them mildly stimulating at night [13].

Here the sources split. Cleveland Clinic advises taking water-soluble vitamins on an empty stomach with a glass of water, while EatingWell suggests taking B-complex with food to head off nausea [13].

Neither position is specific to B5, so go with whichever your stomach tolerates.

Consistency matters more than the hour. B vitamins aren't stored long-term, and the excess leaves in urine within about a day [12].