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Dietary & Ethics
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LAMBERTS FOS for Bowel Health - 500g Powder

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FOS consists of a special carbohydrate called Fructo-oligosaccharides (FOS), a form of soluble fibre, which is found in many vegetables such as chicory and onions. When you take FOS it passes through your digestive system undigested until it reaches your bowel where the friendly bacteria use it as a food source. The result is a rapid growth in the friendly bacteria, such as Bifidobacteria and Lactobacillus species. This is what is called the prebiotic effect, and as the friendly beneficial bacteria multiply, the harmful pathogenic bacteria and yeasts are suppressed. This leads to better bowel tone, more regular movements and a reduction in digestive upsets.

After just 2 weeks of taking 8g of FOS daily, research has shown that FOS can significantly increase the number of beneficial bacteria in the gut by up to 10 times. This is why many researchers working in this area believe that prebiotic products are greatly undervalued compared to the popularity of probiotics.

FOS is extracted from chicory roots and is suitable for all ages, including children and pregnant woman, as well as those on yeast-free diets and those on medication, and can be used on a long term basis. It is a sweet soluble powder that can be mixed in to cold or hot drinks, sprinkled on cereals or eaten of the spoon.

About Lamberts

LAMBERTS is the UK`s leading supplier of food supplements to Practitioners, GP`s, Nutritionists and Pharmacists who use nutrition in healthcare.

Their healthcare philosophy consists of sound science - they only develop health products supported by a valid scientific rationale, and always at the right potency for maximum benefit.

500g Powder

IngredientPer 30gPer 30g with S S Milk
Energy 646kj/152kcal 126kj/30kcal
Carbohydrate (Fructo-oligosaccharides) 95g 19g

(1 heaped teaspoon = 5g) This product may be used in one of two ways: (i) At low doses FOS acts as a prebiotic (bowel-conditioner) and (ii) At larger doses FOS conditions the bowel and also helps maintain regularity.

Prebiotic Dose


(bowel conditioner):Initial Dose:Maintenaince Dose:
Adults: 5g10g
Children 4 years & up: 2.5g 5g

To condition the bowel and help maintain

regularity :Initial 3 day Dose:Normal Full Dose:Max Daily Dose:
Adults: 5g15g20g
Children 4 years & up: 2.5g 5g 10g


If any of these intake levels cause excessive flatulence then reduce the dose and gradually build up. The flatulence is a positive sign that FOS has reached the bowel and is feeding your friendly bacteria. As the bacteria consume FOS a gas is produced which can lead to some flatulence at first, however, after a few days this will disappear as further friendly bacteria develop and absorb the gases. For intakes over 10g (or 5g in children); dividing the intake into 2 daily doses, 1 at each end of the day, will help reduce flatulence.

FOS may cause temporary bloating. This is a short-term effect and once your system speeds up the bloating will disappear. If bloating continues for more than 3 days then reduce the daily intake of FOS.

Showing our 11 FOS for Bowel Health - 500g Powder reviews with an average rating of Very Good. Would you like to write a review?
Review Summary - 4 out of 5 based on 11 ratings.
December 17, 2021 | Lynn
LAMBERTS FOS for Bowel Health - 500g Powder

Have been taking this for a few weeks now after my friend recommended it to me for constipation. I did get wind with it at first, but it has reduced a little now. I didnt mind too much as I think that means that its working. Very good product.

bodykind Limited
September 30, 2021 | Vic Zinovieff
LAMBERTS FOS for Bowel Health - 500g Powder

It gave me tummy ache and wind, so have given up. maybe try again in a few weeks.

bodykind Limited
July 9, 2017 | Patricia
LAMBERTS FOS for Bowel Health - 500g Powder

Really good product. Leaves you feeling good. Recommended it to many of my clients. Shame about the price increase.

bodykind Limited
July 8, 2017 | Shelley
LAMBERTS FOS for Bowel Health - 500g Powder

I tried this after watching Dr Michael Mosely on a sleep programme saying that he thought it could help. I`m not sure it`s worked for me but it has helped with bowel health and I have been able to stop using Laxido which was prescribed by my doctor and I`m hoping that the good bacteria it puts into your body will help my immune system and general health.

bodykind Limited
June 28, 2017 | Helen Rushforth
LAMBERTS FOS for Bowel Health - 500g Powder

Excellent product - it has improved my life tremendously. I will continue to use this always.

bodykind Limited
June 23, 2017 | Mary Bowmer
LAMBERTS FOS for Bowel Health - 500g Powder

Using this prebiotic twice daily has helped and it`s easy to take. I just dispense into a small clean herb bottle for holidays. Easy!

bodykind Limited
April 20, 2017 | Joanna holding
LAMBERTS FOS for Bowel Health - 500g Powder

Excellent product but bulky heavy & indiscreet to take on holiday or travel. Would use in preference to my prescriptions meds if available as tablets or sachets.

bodykind Limited
March 19, 2017 | Joanna Holding
LAMBERTS FOS for Bowel Health - 500g Powder

Very good product means I now think it is prebiotics I have been lacking, not probiotics. Disappointed in the price rise though.

bodykind Limited
February 9, 2017 | Carole
LAMBERTS FOS for Bowel Health - 500g Powder

Have suffered from diverticulosis for quite a while and found since taking FOS, have not suffered any symptoms. Great result.

bodykind Limited
February 8, 2017 | carol
LAMBERTS FOS for Bowel Health - 500g Powder

Excellent if you suffer with chronic constipation this really helps your digestive system.

bodykind Limited
March 20, 2013 | Dawn Watkins
LAMBERTS FOS for Bowel Health - 500g Powder

Excellent product, can`t live without it.

bodykind Limited
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