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Nutrimuscle addresses with you the subject of whey contamination by GMP or Glycomacropeptides.
Contamination of whey by GMP (Glycomacropeptides)
One of the main markets for whey, apart from athletes, is newborn food.
However, GMP is not given to children because it can be toxic (1).
It is therefore appropriate to give babies either:
- Naturally GMP-free dairy whey (high-end, more expensive formula).
- Cheese whey from which GMPs have been removed (first price formula). But, in this case, what to do with all these GMPs that have been eliminated from the whey?
Solution 1: We get rid of GMPs by throwing them down the drain. This is an uneconomical strategy.
Solution 2: we resell the GMPs to whoever wants to buy them. We won't make much money from them, because GMPs don't sell for very much, but the money withdrawn is still something recovered.
GMPs are typically purchased by manufacturers (intermediaries between raw material manufacturers and supplement sellers). These semi-wholesalers mix them with their classic whey in order to reduce the cost.
This is how, instead of having whey cheeses that contain 20 to 30% GMP as a base, we can easily go up to 50% and some wheys have even been measured at more than 80% GMP after these additions, making it possible to reduce the price per kilo of whey cheese.
Warning: some rules of caution
- It is therefore advisable to be wary of whey, especially the first prices;
- You have to demand the GMP content of your whey ;
- You should avoid brands that go through manufacturers instead of buying directly from dairies.
As a reminder, Nutrimuscle:
- Does not use whey cheese, rich in GMP ;
- Uses exclusively dairy whey , naturally free of GMP;
- Do not add GMP to your whey or protein;
- Do not go through contractors so as not to sell diluted or adulterated products;
- Buy directly from producers;
- Provides the certificates of analysis proving it: native whey , Musclewhey, native whey isolate ;
- Also provides complete product analyses and supplier names.
Scientific references
(1) Rigo J. An infant formula free of glycomacropeptide prevents hyperthreoninemia in formula-fed preterm infants. J Pediatr Gastroenterol Nutr. 2001 Feb;32(2):127-30
