Evidence supporting the use of: Oat Fiber
For the health condition: Irritable Bowel Syndrome
Synopsis
Source of validity: Scientific
Rating (out of 5): 3
Oat fiber, primarily composed of insoluble fiber but containing some soluble fiber (notably beta-glucans), has been studied as a dietary intervention for Irritable Bowel Syndrome (IBS). While much of the research on fiber and IBS has focused on soluble fibers (like psyllium), oats have also been included in some clinical trials and dietary guidelines for IBS management. The evidence suggests that soluble fiber can help improve bowel regularity and relieve symptoms of constipation-predominant IBS, whereas insoluble fiber may exacerbate symptoms in some individuals. Oat fiber, given its mixed fiber content, may be better tolerated than wheat bran or other coarse insoluble fibers. A 2009 systematic review (Ford et al., BMJ) concluded that soluble fiber supplementation (including oats) was moderately effective in reducing IBS symptoms, though the strongest evidence was for psyllium. The American College of Gastroenterology's Monograph on IBS (2021) notes that soluble fiber can be beneficial, and oats are sometimes recommended in practical dietary advice. However, evidence specific to oat fiber (as opposed to whole oats or other oat products) is limited, and results are mixed, with some patients reporting symptom relief and others experiencing bloating or discomfort. Overall, while there is some scientific support for the use of oat fiber to manage IBS symptoms, particularly in constipation-predominant cases, the evidence is moderate and individualized tolerability should be considered.
Other ingredients used for Irritable Bowel Syndrome
2'-Fucosyllactoseakkermansia muciniphila
aloe vera
alpha-galactosidase
alpha-pinene
amino acids
bacillus clausii
bacillus coagulans
bacillus subtilis
benegut perilla (proprietary)
beta caryophyllene
bifidobacterium bifidum
bifidobacterium breve
bifidobacterium infantis
bifidobacterium lactis
bifidobacterium longum
bilberry
bio ecolian (proprietary)
blackberry
Indian frankincense
butyrate triglyceride
chen pi
chia seed
chlorella
cinnamon
turmeric
curcumin
fennel
flaxseed
fructooligosaccharides (FOS)
fruit and vegetable blend (proprietary)
ginger
green banana
green tea
guar gum
cellulose
inulin
isomalto-oligosaccharide
l-glutamine
lactobacillus acidophilus
lactobacillus brevis
lactobacillus bulgaricus
lactobacillus casei
lactobacillus fermentum
lactobacillus gasseri
lactobacillus helveticus
lactobacillus paracasei
lactiplantibacillus plantarum
lactobacillus reuteri
lactobacillus rhamnosus
lactobacillus salivarius
lactococcus lactis
lovage
marshmallow
oat
pectin
peppermint oil
plum fruit
pomegranate
potato starch
butyric acid
psyllium
quercetin
resveratrol
saccharomyces boulardii
slippery elm bark
spearmint leaf
streptococcus thermophilus
tributyrin
vitamin D
xylooligosaccharides
zinc
hyssop
atractylodes
ferula assafoetida
anise
holarrhena antidysenterica
fumaria parviflora
chrysanthemum
senna
white oak
algae
Agastache
Asafoetida
Alexandrian senna
Agrimonia pilosa
Betony
Bifidobacterium
Bacillus indicus
Bifidobacterium adolescentis
Boswellic Acid
Bayleaf
Belleric myrobalan
Bran
Boswellia
Bacillus licheniformis
black salt
Bifidobacterium animalis
Bitter principals
Bacteria
Bifidobacteria
Bacillus
Cumin
Coriander
Citron
Cannabidiol
Clerodendrum indicum
Dragonhead
Dichrostachys glomerata
Enterococcus
Enzyme Blend
Fig
Fiber
Quince
Rhubarb
Other health conditions supported by Oat Fiber
Cholesterol (high)Constipation (adults)
Constipation (children)
Diabetes
Digestion (poor)
Fat Metabolism (poor)
Hemorrhoids
Inflammation
Irritable Bowel Syndrome
Weight Loss