Lamberts FOS 500g Powder


Lamberts FOS 500g Powder

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Lamberts FOS 500g Powder consists of a special soluble fibre called Fructo-oligosaccharides (FOS), which is found in many vegetables such as chicory and onions. Upon consumption of FOS it passes through the body's digestive system undigested, until it reaches the bowel where the friendly bacteria use it as a food source. The result is a rapid growth in the ‘friendly’ bacteria, such as Lactobacillus and Bifidobacteria species.  

After just 2 weeks of taking 8g of Lamberts FOS Powder daily, research indicates 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’

  • 500g powder.
  • Formerly known as Lamberts Eliminex.
  • Extracted from chicory roots. 
  • Consists of a special soluble fibre called Fructo-oligosaccharides (FOS).
  • Significantly increases the number of beneficial bacteria in the gut by up to 10 times.
  • Described as a prebiotic.
  • Suppresses harmful pathogenic bacteria and yeasts.
  • Reduces digestive upsets.
  • Can be used on a long term basis.
  • Suitable for all ages.
  • Suitable for vegetarians.

Lamberts FOS Powder was formerly known as Lamberts Eliminex Powder and like its predecessor, is suitable for all ages, including children and pregnant women, as well as those on yeast-free diets and those on medication. FOS is suitable for consumption on a long term basis.


More Information

Fructo-oligosaccharides (FOS) also known as oligofructose or oligofructan, are oligosaccharide fructans that are used as an alternative form of sweeteners. Fructo-oligosaccharides exhibit sweetness levels between 30% and 50% of sugar in commercially prepared syrups. FOS is extracted from fruits and vegetables such as bananas, onions, asparagus, leeks, barley, chicory root, garlic and wheat. Wheat grains and cereals, also contain fructo-oligosaccharides. 

Fructo-oligosaccharides have been a popular dietary supplement in Japan for many years and are now becoming increasingly popular in Western cultures for its prebiotic effects. FOS serves as a substrate for microflora in the large intestine, increasing the overall gastrointestinal tract health. It is often considered as a suitable supplement for the prevention of yeast infections too.

Much research into FOS has found, together with inulin, that it can promote calcium absorption within the gut. The intestinal microflora in the lower gut can ferment FOS, which results in a reduced pH. Calcium is more soluble in acid, and, therefore, more of it comes out of food and is available to move from the gut into the bloodstream.

FOS seems to be safe when consumed in less than 30 grams per day. They can cause flatulence, intestinal noises, bloating, stomach cramps, and diarrhoea. These effects however, are usually very mild if the dose is less than 10 grams per day.

Directions of use


(1 heaped teaspoon = 5g).

Lamberts FOS may be used in one or two ways: 

  • 1) At low doses Lamberts FOS acts as a prebiotic (bowel conditioner).
  • 2) At larger doses Lamberts FOS conditions the bowel and also helps maintain regularity.

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.


  • Take as above, or as directed by a practitioner or pharmacist.
  • Do no excced the recommended daily dose.
  • Food supplements should not replace a balanced diet and healthy lifestyle.
  • Be sure to drink at least 2 litres of fluids a day, while taking Lamberts FOS.
  • Keep away from children.

More Information

A soluble white powder.

Nutrition Information:
per 100g per 20g
Energy 646kj/152kcal 126kj/30kcal
Protein 0g 0g
Carbohydrate (Fructo-oligosaccharides) 95g 19g
Fat 0g 0g

Suitable for vegetarians.


Orders under £50:

Royal Mail £3.99 delivery within 1-3 working days from dispatch.


Orders over £50:

Free Delivery within 1-3 working days from dispatch.


UK delivery charges are charged at a flat rate. This means regardless of what you order, they will not increase. Standard UK £3.99 delivery is sent using the Royal Mail TRACKED 48HR service and your order will be delivered within 2-3 days. Free UK delivery is sent either by Royal Mail TRACKED 48HR or via a Courier. For international deliveries please check our delivery page .

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