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06 Dec 2004


I have a question, is there a difference between USN and ESPi whey proteins?

I have been buying USN products for a while now, and this weekend I walked into a shop and they were selling ESPi product. The first thing I noticed was the big price difference between the two products. And my understanding is that all whey proteins are the same.

If the proteins are the same then can I switch over to ESPi, because the main reason is that it is a lot cheaper that USN.
Answer 299 views

01 Jan 0001

Hi Flyhalf

I think that they are all very similar. Whey protein is similar, the difference is in the content of each amino acid and you can see that if you just compare the two labels - you will be able to find the amino acid levels per 100 g of each of the products, and then you will see where the differences are. Quite what to make of this is anyone's guess - I personally think that they are all the same. For example, if one product has a lysine level greater than the other one, but its alanine levels are lower, what does that mean? I don't know, I don't think that it makes any difference at all. All the products will contain amino acids at levels way above the levels you would have without the milkshake or product, and so whether taking in 100% or 130% of the recommended daily dose makes a difference is questionable.

So, in the end, maybe it comes down to preference, cost and taste.

Hope this clarifies it
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