What is the recommended dosage for Galactooligosaccharides (GOS)?

General: 2.5-5 g/day; Ibs Support: 3.5 g/day (optimal dose; higher doses may increase symptoms); Infant Gut Support: 0.24-0.48 g/100 mL formula (added to infant formula)

What are the side effects of Galactooligosaccharides (GOS)?

Potential side effects include: Gas and bloating (especially above 5 g/day; dose-response is U-shaped), Flatulence at higher doses, Abdominal cramping if dose increased too quickly, May worsen symptoms in FODMAP-sensitive individuals.

What are galactooligosaccharides (GOS) and how do they work for gut health?

Galactooligosaccharides are prebiotic fibers derived from lactose that selectively promote the growth of beneficial Bifidobacterium and Lactobacillus species in the gut. They resist digestion in the upper GI tract and are fermented in the colon, producing short-chain fatty acids and lowering intestinal pH. Research suggests GOS may improve stool consistency, reduce pathogen colonization, and support immune function.

What is the recommended dosage of galactooligosaccharides?

Clinical studies have used GOS at 2.5-10 g per day, with 5 g being the most commonly tested dose. Gradual dose escalation over 1-2 weeks is recommended to minimize gastrointestinal discomfort. GOS can be dissolved in liquids or mixed with food, and benefits are typically observed after 2-4 weeks of consistent use.

Are there side effects or interactions with galactooligosaccharides?

GOS may cause gas, bloating, and loose stools, particularly when first introduced or at higher doses. Despite being derived from lactose, most GOS products contain minimal residual lactose and are generally tolerated by lactose-intolerant individuals. GOS are a FODMAP, so individuals on a strict low-FODMAP diet may need to limit intake. No major drug interactions have been reported.

Galactooligosaccharides (GOS)
Galactooligosaccharides (GOS)

prebiotic

Còn được gọi là: GOS, Trans-Galactooligosaccharides, TOS, Bimuno, Vivinal GOS

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About

Galactooligosaccharides (GOS) are prebiotics synthesized from lactose that selectively promote the growth of beneficial Bifidobacterium species. Research suggests GOS may help reduce IBS symptoms including pain, bloating, and flatulence in a dose-dependent manner. Interestingly, studies indicate that a moderate dose (3.5 g/day) may be more effective than higher doses, which can cause excess fermentation.

How It Works

Synthesized from lactose, resistant to human digestive enzymes; selectively promotes Bifidobacterium growth; reduces pathogenic Clostridium colonization via competitive exclusion; lowers stool pH through SCFA production; enhances calcium absorption.

Evidence For Conditions

Tình trạng	Xếp hạng	Nghiên cứu	Người tham gia
Irritable Bowel Syndrome (IBS)	B	3	400	Xem →

Side Effects

Gas and bloating (especially above 5 g/day; dose-response is U-shaped)
Flatulence at higher doses
Abdominal cramping if dose increased too quickly
May worsen symptoms in FODMAP-sensitive individuals

Drug & Supplement Interactions

Other FODMAPs (cumulative fermentation in sensitive individuals)
Lactose-containing products (GOS is derived from lactose; generally safe for lactose-intolerant individuals as GOS itself is lactose-free)

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Related Ingredients

Inulin Fructooligosaccharides (FOS) Resistant Starch

Thông tin nhanh

Liều lượng: General: 2.5-5 g/day; Ibs_Support: 3.5 g/day (optimal dose; higher doses may increase symptoms); Infant_Gut_Support: 0.24-0.48 g/100 mL formula (added to infant formula)
Dạng bào chế: powder capsule syrup added to food products
Nguồn tự nhiên: Human breast milk (naturally contains GOS), Cow's milk (trace amounts), Synthesized commercially from lactose using beta-galactosidase enzymes
Giới hạn trên: Well-tolerated up to 15 g/day; optimal dose appears to be 3.5-5 g/day
Thời điểm tốt nhất: With meals; start with lower dose and increase gradually

Tóm tắt bằng chứng

Irritable Bowel Syndrome (IBS) B

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