What is WPI?

What is WPI?

WPI also knows as Whey Protein Isolate is the isolate’s short chain proteins that are extracted from Whey Protein Concentrate also known as WPC. Whey protein concentrate is a by-product of cheese manufacturing, and it is the liquid that is left over after the milk has been processed.

In order for WPI to be extracted from WPC, it is a vigorous process which ultimately separate's the WPI from the remainder of the matrix of the WPC, therefore WPI has a higher protein content and nearly zero percent fat, carbohydrate’s and lactose.

It is due to this vigorous extraction process that makes WPI as pure, bioavailable and fast acting than any other type of protein that is extracted from milk.

How does WPI work?

WPI work’s as any other protein when consumed. After protein is consumed either in food or in supplement form, it is ultimately digested into amino acids which then they amino acids are absorbed into the blood stream.

The rate at which digestion and absorption takes place depends on the food/supplement that is consumed Vs the individual's metabolism that is consuming the food/supplement item.

What makes SFA WPI better than other protein brands?

Unlike some other brands we don’t lie about what our products actually contain or do. We don’t import our product from the united states or in fact any other country aside from Australia and New Zealand who have the best food standard’s & practices in the world

Can anyone use SFA WPI?

Yes, SFA WPI is safe for anyone to consume, unless you have sensitive dairy allergies. We also recommend that for any dietary change you consult your doctor.

Where do you source your protein from?

SFA sources it’s WPI from New Zealand based dairy farms. We pack all our products in our Melbourne based facility. We support Australian growth and industry by using Australian and New Zealand whey protein sourced from grass-fed cattle.

Where is your protein blended and packed?

We pack all our products in our Melbourne based facility

What should I mix WPI powder with?

SFA WPI can be mixed with water, dairy milk, or milk substitutes

When should I take WPI?

Timing is everything and absolutely crucial to ensure maximum recovery and increase performance.

WPI - Whey protein Isolate powder is instantized and can conveniently be prepared and consumed instantaneously by mixing the desired powder in water, milk or juice.

For Weight Loss Management its preferable for 2 heaped table spoons of protein (1 scoop/30gram’s) either in the morning or afternoon to supplement a snack

For Muscle Growth and Strength Training its preferable for 2 heaped table spoons of protein (1 scoops) 30min before and 30min after the workout to support muscle recovery

For Intensive Training its preferable for 2 heaped table spoons of protein (1 scoop) 30min before the workout to support energy expenditure

What is the best protein for loosing weight?

The best WPI for weight loss is one that does not contain any added carbohydrates, minimal fillers and is above 90% in protein. Casein is the most useful protein powder for weight loss out of all the protein’s sourced from dairy milk, this is due to the fact it is the slowest digestible protein and takes up to 8 hours to be completely digested and offers satiety greater than any other protein on the market

What's the difference between WPC vs WPI?

WPI is one derivative of WPC, which is the isolate protein’s(short chain proteins), it is much more faster acting then WPC due to the WPI component of WPC has been isolated from the fat’s, carbohydrate’s, concentrate protein’s and all other aspects of the WPC matrix which all contribute to the slow the abortion, digestion and utilization of the WPI within the WPC, as opposed when WPI is in its pure form. Another benefit of WPI is that it has a higher percentage of BCAA’s gram for gram compared to WPC.

Although WPI and WPC come from the same source, WPI is ultimately a faster acting protein as opposed to WPC and therefore is more beneficial as a post workout protein. WPC is also beneficial as a post workout protein, however it does not contain as much protein an WPI gram for gram, it is approximately 5 grams less per 30gram serve (~12%), therefore ~12(3.6grams) more WPC needs to be added per serve to get the same percentage of protein as opposed to WPI.

The other downfall of using WPC over WPI as a post workout protein is that it is slower acting which ultimately will increase the time period it will take after consumption to stimulate the mTOR pathway which ultimately stimulates the repair/recovery biological mechanisms within the human body.

As the window of opportunity for large amounts of nutrition absorption is quite small after a workout, WPI is the desired protein of consumption among athlete’s that seek the quickest possible recovery as it is digested, absorbed, utilized and also stimulates the mTOR pathway much quicker then WPC or any other protein sold on the market that has not been hydrolysed. 

Both WPI and WPC have been scientifically shown to be bioactive and boost the immune system and both ultimately can be used as a pre and post workout protein shake. They can also be consumed anytime of the day as a general protein booster for anyone that wants to increase protein within their diet and seeks a high protein source to consume.

Both proteins stimulate an anabolic effect due to the stimulation of the mTOR pathway, increase protein synthesis and a positive net protein balance which ultimately increase’s muscle repair and recovery.


Why do we need protein and amino acids in our diet?

A protein consists of amino acids linked to peptide bonds. Dietary Protein is broken down by two enzymes in the gastrointestinal tract into dipeptides and tripeptides which eventually are broken down to amino acids(catabolism) when consumed, which the body absorbs and utilizes for many physiological functions.

Amino acids have enormous physiological importance such as cell-specific production of low-molecular-weight metabolites.

The most common physiological function of amino acids that is known generally is the anabolism(synthesis) of new protein’s within the body and also the repair of muscle tissue. Some more example’s are as follow’s; support of spermatogenesis, fetal survival and growth, blood circulation, resistance to infectious disease, as well as skeletal muscle mass and health.

It is important for one to ensure that at the very minimum the RDA of protein is met to ensure that there is no risk of protein deficiency. Protein deficiency has health consequence's and causes multiple clinical syndromes.

Keto protein and low carbohydrate protein

Keto friendly protein powder? Too easy, just take a look at our New Zealand WPI , Australian WPC or Australian Micellar Casein