Lamberts Fructo-oligosaccharides (FOS) Powder 500g

Lamberts Fructo-oligosaccharides (FOS) Powder 500g

Lamberts Fructo-oligosaccharides (FOS) Powder 500g

£11.79 Save: £1.81 RRP: £13.60

This product is typically dispatched within 1-3 working days from date of order when using our standard delivery service.

Brand: Lamberts
Code: 2175024
Weight: 500g


Lamberts FOS (Fructo-oligasaccharides) - formerly Eliminex is a natural Prebiotic that encourages the growth of friendly bacteria in the bowel.

Suitable for vegetarians.

This product consists of a special soluble fibre called Fructo-oligosaccharides (FOS), 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. 

After just 2 weeks of taking 8g of FOS daily, research has shown that it can significantly increase the number of beneficial bacteria in the gut by up to 10 times which explains why FOS is described as a ‘prebiotic’. 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 women, 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 off the spoon. 


1 heaped teaspoon = 5g

This product may be used in one of two ways:

  • At low doses FOS acts as a prebiotic (bowel-‘conditioner’)
  • At larger doses FOS conditions the bowel and also helps maintain regularity. 

Prebiotic Dose


  • Initial dose 5g
  • Maintenance dose 10g

Children 4 years and over:

  • Initial dose 2.5g
  • Maintenance dose 5g

To condition the bowel and help maintain regularity:


  • Inital 3 day dose 5g
  • Normal full dose 15g
  • Max daily dose 20g

Children 4 years and over:

  • Initial 3 day dose 2.5g
  • Normal dose 5g
  • Max daily dose 10g

Dissolve in hot drinks or sprinkle onto cereal. Alternatively simply take it ‘off the spoon’. Be sure to drink at least 2 litres of fluids a day.


Allergen advice 



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.

Storage instructions 

To be stored in a cool, dry place and protected from light. 


A soluble white powder.