Evidence supporting the use of: Vitamin A (retinyl not specified)
For the body system: Mucus Membranes
Synopsis
Source of validity: Scientific
Rating (out of 5): 5
Vitamin A is strongly supported by scientific evidence for its role in supporting the health and function of mucus membranes. Mucus membranes line various cavities in the body, including the respiratory, gastrointestinal, and genitourinary tracts, and act as a barrier to infection and physical damage. Vitamin A (including retinol and its derivatives) is essential for the maintenance, differentiation, and repair of epithelial tissues, which make up these membranes. Deficiency in vitamin A leads to keratinization and atrophy of mucus-secreting cells, resulting in dry, damaged, and nonfunctional mucus membranes—manifesting clinically as xerophthalmia (dry eyes), increased susceptibility to respiratory and gastrointestinal infections, and other epithelial complications.
Scientific studies have elucidated the molecular mechanisms whereby vitamin A, through its active metabolite retinoic acid, regulates the expression of genes involved in epithelial cell growth and differentiation. The World Health Organization and other public health bodies recognize vitamin A supplementation as crucial for preventing epithelial and mucous membrane complications, particularly in populations at risk of deficiency. Thus, the use of vitamin A to support mucus membrane health is not only traditional but has been thoroughly validated by modern biochemical and clinical research.
More about Vitamin A (retinyl not specified)
More about Mucus Membranes
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akkermansia muciniphilaaloe vera
barley
basil
bayberry
beta-carotene
bilberry
bisabolol
blackberry
broccoli
ceramides
chamomile
citrus bioflavonoids
clove
coating
colostrum
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dandelion
fruit and vegetable blend (proprietary)
glehnia root
glycerin
goldenseal
onion
horseradish
hypromellose
l-cysteine
l-threonine
lactobacillus crispatus
lactobacillus jensenii
lactobacillus salivarius
lactoferrin
lactoperoxidase
lemon
licorice root
marshmallow
methylmethionine sulfonium chloride (vitamin U)
mint
mixed carotenoids
mucin
n-acetyl-glucosamine
n-acetyl-cysteine (NAC)
nettle
niacin (vitamin B3)
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olive
omega-7 fatty acids
ophiopogon root
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pear
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platycodon root
prebiotic blend (proprietary)
raspberry
riboflavin (vitamin B2)
rose oil
sage
slippery elm bark
sorbitol
thyme
vitamin A
vitamin C
vitamin E
water
xylitol
zhejiang fritillary
zinc
yellow root
boneset
mullein
chickweed
cardamom
lobelia
capsicum
mugwort
malabar nut
hedychium spicatum
tylophora
yarrow
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fritillaria
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stillingia
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cayenne pepper
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Bee products
Borage
Balloon Flower
Belamcanda
Bird's nest
Calendula
Colloidal Silver
Cod Liver Oil
Carvacrol
Citrus
Cineole
Cornflower
Cajuput
Cantaloupe
Catechu
Centipeda
Cistus
Cubeb
Cowslip
Cranesbill
Carotene (unspecified)
Chekiang Fritillary
Collinsonia
Chondrus
Devil's Club
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English Horsemint
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Glycosaminoglycans
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Other body systems supported by Vitamin A (retinyl not specified)
BrainEyes
Gastrointestinal Tract
Immune System
Intestinal System
Lungs
Mucus Membranes
Reproductive System
Respiratory System
Skin
Small Intestines