Amino acids are usually mentioned when talking about proteins, sports, or muscles. However, their role in the human body is much broader.
One of the most interesting is glycine. It is the smallest of the 20 amino acids that make up proteins. We get it from food, and the body can produce a certain amount itself.
Glycine is particularly interesting because it is an important part of the structure of proteins, including collagen, and is involved in natural biochemical processes in the body that produce compounds such as creatine, heme, and glutathione.
So, what exactly is L-glycine and why is this small amino acid worth knowing more about?
In short: L-glycine is a protein-forming amino acid that the human body can produce itself. Glycine forms a significant part of the collagen amino acid sequence and is also one of the substances used in the natural formation processes of creatine, heme, and glutathione. We also get it from protein-rich foods.
What is L-glycine?
Glycine is an amino acid – one of the substances from which proteins are made.
It is classified as a non-essential amino acid.
The word "non-essential" in this case certainly does not mean "unimportant". It means that the human body can produce a certain amount of glycine itself from other substances.
In addition, we also get glycine from food.
Where is glycine naturally found?
Since glycine is a component of proteins, it can be found in various protein-containing foods.
Glycine is naturally found in:
- meat;
- fish;
- dairy products;
- eggs;
- legumes;
- other protein-rich foods.
Thus, L-glycine is not a foreign substance to the body or one found only in food supplements. It is a natural part of the human body's biochemistry and the food we consume.
Why are amino acids called the "building blocks" of proteins?
Imagine a long necklace where each bead is a different amino acid.
Proteins are structured on a similar principle.
Different amino acids are joined together in a specific sequence to form protein structures. Glycine is one such "building block".
Although it is the smallest of the protein-forming amino acids, glycine is particularly abundant in one protein structure well-known to the human body.
We are talking about collagen.
L-glycine and collagen – what is their connection?
There is a lot of talk about collagen, but it is much less often explained what collagen itself is made of.
Collagen is a structural protein.
And proteins are made of amino acids.
Approximately every third amino acid in collagen is glycine.
Due to the small size of the glycine molecule, collagen chains can form its characteristic compact triple helix structure.
This is one of the reasons why glycine is so interesting when it comes to human biochemistry.
It is important not to misinterpret this fact as a statement that an L-glycine food supplement inherently "restores collagen", skin, joints, or other tissues. Here we are talking about glycine's place in the structure of collagen, not about the therapeutic effect of a specific food supplement.
Glycine is interesting not only because of collagen
Glycine's role is not limited to protein structure.
From a biochemical perspective, it is one of the substances that the human body uses in natural processes that produce:
- creatine;
- heme;
- glutathione.
These names are often heard, but it is important to understand what their connection to glycine truly means.
Glycine and creatine
Creatine is a nitrogen-containing compound naturally occurring in the human body.
Most of the creatine in the human body is found in skeletal muscles.
In creatine biosynthesis processes, the body uses several amino acids, including:
glycine, arginine, and methionine.
Creatine is mainly obtained from animal products, especially meat and fish. Plant-based foods naturally contain almost no creatine.
However, it is important to distinguish two things here:
L-glycine is not creatine.
Glycine is one of the substances that the body can use in its natural creatine biosynthesis processes.
Glycine and heme
Another interesting connection is heme.
Heme is an iron-containing organic compound that is:
- a component of hemoglobin;
- a component of myoglobin;
- a component of some enzymes.
Glycine is one of the substances that the human body uses in natural heme formation processes.
However, glycine is neither heme nor iron, so an L-glycine supplement should not be regarded as an iron or hemoglobin supplement.
This is simply another example of how the same small amino acid can be used in different biochemical processes in the body.
Glycine and glutathione
Another often-heard name is glutathione.
Glutathione is a compound naturally occurring in the human body, composed of three amino acids:
- glycine;
- cysteine;
- glutamic acid.
So glycine is one of the amino acids that make up the structure of glutathione.
And the same principle applies here: L-glycine is not glutathione.
By taking an L-glycine supplement, we are not consuming glutathione itself – glycine is one of its structural components.
One small amino acid – several different structures
Glycine's place in human biochemistry can be summarized very simply:
| Glycine is related to | What is the connection? |
|---|---|
| Proteins | Glycine is a protein-forming amino acid |
| Collagen | Approximately every third amino acid in collagen is glycine |
| Creatine | Glycine is one of the substances used in its biosynthesis |
| Heme | Glycine is used in natural heme formation processes |
| Glutathione | Glycine is one of the three amino acids that make up its structure |
It is precisely for this reason that glycine is interesting not as another fashionable food supplement substance, but as a natural part of human biochemistry.
Can the human body lack glycine?
It is important not to confuse glycine with essential amino acids, which the human body cannot produce itself and therefore must obtain from food.
Glycine is a non-essential amino acid.
This means that the human body can synthesize it itself, and we also get glycine from eating protein-rich foods.
Therefore, one should not automatically assume that feeling tired, sleeping poorly, or having other non-specific symptoms means "a lack of glycine." Such symptoms can have many different causes.
A food supplement should be regarded as an additional, precisely calculated source of L-glycine, rather than a way to self-diagnose or treat a supposed deficiency.
If the body produces glycine itself, why do people choose L-glycine supplements?
This is a perfectly logical question.
We get glycine from food, and the body produces a certain amount of it itself.
However, some people, due to individual dietary choices, want to include an additional, precisely calculated amount of L-glycine in their diet.
In such a case, the length of the product's composition is not important, but rather the exact opposite:
do we clearly know what and how much we are consuming?
When one active ingredient is an advantage
On the food supplement shelf, it is easy to find products with ten or more active ingredients on their labels.
This in itself is neither good nor bad.
However, for a person who is specifically looking for L-glycine, a long formula is not necessarily needed.
Therefore, when creating GraSole L-Glycine, a simple principle was chosen:
one main active ingredient + clearly stated amount + uncomplicated composition.
The recommended daily serving contains:
- 2 capsules – 1306 mg of L-glycine;
- 3 capsules – 1959 mg of L-glycine.
This allows the user to know exactly how much L-glycine they are getting in their chosen serving.
What else is in a GraSole L-Glycine capsule?
The product's composition is deliberately simple.
L-glycine – the main active ingredient.
Hydroxypropyl methylcellulose – material used for the capsule shell.
Water, gellan gum, and potassium acetate – technological components required for capsule production.
The capsules are suitable for vegans and vegetarians.
The package contains 90 capsules.
GraSole's approach: sometimes more ingredients are not needed
In the world of food supplements, it's easy to get the impression that the longer the product's composition, the better the product.
However, this is not a universal rule.
Sometimes a person is not looking for ten different substances in one capsule.
They are looking for one specific substance, a clear amount of it, and an understandable composition.
This is precisely the idea behind GraSole L-Glycine.
Not a more complex formula.
A clearer formula.
Frequently asked questions about L-glycine
What is L-glycine?
L-glycine is one of the 20 amino acids that make up proteins. It is a non-essential amino acid – the human body can produce a certain amount of glycine itself, and we also get it from food.
What foods contain glycine?
Glycine is found in various protein-rich products, including meat, fish, dairy products, eggs, and legumes.
How is glycine related to collagen?
Glycine is one of the main amino acids that make up the structure of collagen. Approximately every third amino acid in collagen is glycine.
Is L-glycine creatine?
No. L-glycine and creatine are different substances. Glycine is one of the amino acids that the human body can use in natural creatine biosynthesis processes.
Is L-glycine glutathione?
No. Glutathione is composed of three amino acids – glycine, cysteine, and glutamic acid. Glycine is one of its structural components, but it is not the same substance.
Is L-glycine collagen?
No. Glycine is one of the amino acids that make up the structure of the collagen protein.
How much L-glycine is in GraSole L-Glycine?
Two capsules contain 1306 mg of L-glycine, and three capsules contain 1959 mg.
Is GraSole L-Glycine suitable for vegans and vegetarians?
Yes. The product's capsules are suitable for vegans and vegetarians.
Conclusion
Glycine is an excellent example that important substances in the human body do not necessarily have to be complex.
It is a small amino acid that is part of proteins, holds a unique place in the structure of collagen, and is one of the substances used in the natural formation processes of creatine, heme, and glutathione.
We get glycine from food, and the human body can also produce a certain amount itself.
For those who are consciously looking for an additional source of L-glycine, GraSole L-Glycine offers a simple principle:
one main active ingredient, a clearly stated amount of L-glycine, and an uncomplicated composition.
A varied and balanced diet and a healthy lifestyle are important. A food supplement should not be used as a substitute for food.
