Has anybody used these and do you feel you benefited from using them?
I have used digestive enzymes, and I feel I have benefitted from them tremendously!Contained within all foods, (fruits and vegetable) are the necessary enzymes to break them down.
When we see tomatoes or any type of food rotting, ...those are the enzymes in action.
These enzymes are suppose to break things down while they are in our digestive tract, ...however, this doesn't always occur for a variety of reasons.
Take seeds, grains, and certain types of nuts for instance. Have you noticed that they don't rot. They can be stored for years and don't rot. That's because the digestive enzymes have not yet been awakened in the seed. This is partially why grain and fiber is so beneficial to us. They don't really break down, they pass through our digestive tract and when exiting, hopefully take a lot of other stuff with them.
Another reason why a particular food's natural enzymes fail to break it down within the digestive tract is because the food may have been picked too early, and as such all of it's own metabolic processes have not yet been completed. Have you ever bitten into a winter tomato, expecting to feel the juices flowing out, ...but because it had been picked early to survive the transit time enroute to the supermarket, and sprayed with chemicals to make it turn red on the outside and appear ripe, ...it was yellow on the inside and had the texture of a golden delicious or fuji apple... Ever bit into a banana that was still green... Years ago there was a large commercial food manufacturer that used the slogan "We shall pick no fruit before it's time." This sent a very powerful message because it's not just the quantity of food we consume that's important, ...but also the very quality of the food itself. The differences between quantity and quality are vast, however, it is the relationship between the two that truly determines something's value
A third reason too is the way in which the food was prepared. As powerful as these enzymes are, ...they are also fragile delicate little creatures that are easily destroyed. When we cook our foods, the heat destroys the enzymes. When we consume canned or processed foods, the heat employed in the canning process destroys the enzymes.
In order for our bodies to now digest what we've consumed, our bodies are required to manufacture the enzymes to break it all down. This takes a tremendous toll on our body, resulting in the majority of our energy being consumed in the digestion process... simply producing the enzymes and digesting the food. That's why I prefer eating my vegetables raw or ever so slightly steamed. Ever notice how tired or sluggish we feel after a big meal? At Thanksgiving, ...it's not just the tryptophan that makes us want to nod off. While in school, did you ever feel like you were not all that mentally alert in that class right after lunch? Modern diets are causing us to devote too much energy towards digestion, that otherwise could be used elsewhere in the body.
A simple analogy would be like driving a vehicle across the desert. What type of mileage could we expect to see?
If we're driving in 120 degree heat, chances are more than likely we'd be running the airconditioning to keep the interior of the vehicle at a comfortable temperature, so there would have to be some energy diverted to that. At the same time, the engine fan would probably engage quite frequently in order to keep the engine cool so we wouldn't overheat. Again, we see some energy going towards that. If our vehicle's drive train was not sufficiently lubricated, we could expect to see some drag or resistance, and the engine would have to work that much harder to power our vehicle across the desert, resulting in the engine fan engaging much more frequently. With the engine having to power so many
additional processes, how much mileage can we expect, and how efficiently can we expect to see the engine perform while getting us to our destination? The fuel that we've put into the fuel tank is being consumed to power a host of
other processes resulting in an overwhelmed and inefficient engine, that cannot possibly extract every drop of energy from the fuel it is trying to burn. We haven't even begun to factor in the quality of fuel used to begin with. Due to stricter EPA requirements, fuel manufactors have had to reduce the sulfur content in the fuels, resulting in even less cetane being available to power the vehicle to begin with. I'm sure you'll agree that you're beginning to see how this creates a rather vicious cycle don't you? Carbon deposits in an engine are like undigested food in the colon. Does it make sense to spend good money on fuel, and not be able to fully tap into it's full potential?
Of course not! 
What if a few factors were entirely different? What if when attempting that same trek through the desert, in the same vehicle, we were not required to engage the airconditioning? What if our vehicle's drive train was sufficiently lubricated, thereby eliminating the friction & drag that results in the subsequent deterioration in the metals parts? What if all the power that would otherwise have been diverted to compensating for those previous factors, could now be available for use elsewhere in the vehicle... like in the engine's combustion chamber? How much better condition would our injectors and other metal parts be if they were sufficiently lubricated and not grinding against each other on a constant basis? How much more of an efficient engine would our vehicle have if all the power was going towards taking that vehicle further down the road?
In scenario #1, how much more power was diverted towards the airconditioning, compensating for the resistance in the drive train, and powering the fan? Alot! How much mileage would we expect to get travelling through the desert
in those conditions versus if we made
that same trip like we did in scenario #2, without being required to use the airconditioner, compensate for resistance, power the fan etc?
As we can see in scenario #2, we'd be getting a lot more MPG (miles per gallon) wouldn't we?
Of course we would!In addition, not only would we get more miles per gallon (MPG) or better mileage (defined as travelling a further distance on the same amount of fuel) we would have found a way to not only reduce our fuel cost for the trip, but also to reduce our emissions, and extend the life of our engine, our fuel injectors and other metal parts because they will no longer be required to work so excessively in a less than conducive environment.
Digestive enzymes can be quite beneficial. It's important however to know and consume the proper enzyme for whatever it is we're consuming. Fruit enzymes break down fruit, protein enzymes break down protein.
Most coroners will tell you that upon death, most people have X numbers of lbs. of undigested meat in their colons. Many people aware of this statistic proactively cleanse in order to rid themselves of this undigested matter... which is good. However, doesn't it make more sense to seek to ensure that
we're actually digesting what we consume, ...rather than simply attempting to irrigate what we do not?
I hope my simple analogy comparing a vehicle with the human body has given you a better understanding of the role digestive enzymes can play in the nutritional regimens we utilize in our quest towards optimal health & wellness.
Hope That Helps
The information within this post is for educational, purposes only and should not be used to diagnose and treat diseases. All serious health conditions should be treated by a competent health practitioner. This is not meant to dispense medical advice, prescribe remedies, or assume responsibility for those who choose to treat themselves. This information has not been reviewed by the U.S. Food and Drug Administration (USFDA) or by Health Canada and is not intended to diagnose, treat, cure, or prevent any disease. 
