Is L-theanine With Magnesium Gluten Free?

The Ingredient Breakdown

To determine if a supplement is safe for a gluten-free diet, we must look beyond the active ingredients and inspect the "other ingredients"—specifically the capsule material and flow agents. Here is the scientific breakdown of L-theanine and Magnesium bisglycinate.

L-theanine is an amino acid found primarily in green tea. In its isolated, supplemental form, it is naturally gluten-free. It does not contain any grain derivatives. Magnesium bisglycinate is a chelated form of magnesium, meaning the magnesium is bound to the amino acid glycine. This form is highly bioavailable and free from gluten. The most critical component to check for gluten is often the capsule. Fortunately, this product uses a vegetable capsule (often hypromellose), which is a plant-derived cellulose and is inherently gluten-free.

We also analyzed magnesium stearate, a common flow agent used to keep the ingredients from sticking to the manufacturing equipment. While stearate can be derived from either plant or animal sources, it is chemically processed and does not contain gluten proteins. Therefore, the formulation appears to be entirely free of gluten contaminants.

Nutritional Value

When considering the nutritional profile of L-theanine with Magnesium, it is important to note that this is a supplement, not a food source. It contains negligible calories, zero sugar, and no fat. A standard serving typically contributes 0g to your daily caloric intake, making it compatible with strict weight management plans like Keto or Intermittent Fasting.

Because it is a non-caloric supplement, it fits easily within most dietary limits. The primary nutritional value comes from the magnesium content, which supports muscle function and relaxation, rather than macronutrients. It is a clean formula for those monitoring their sugar or carbohydrate intake.