What is GBR?
It is simply brown rice sprouted (or germinated)! Brown rice can be easily sprouted. The brown rice is first soaked overnight (or for two days) depending on the surrounding temperature and then kept for germination. It should sprout within 12-24 hours.
Why sprout brown rice?
Brown Rice is a whole grain and offers an excellent nutritional profile. But it is also rich in enzyme inhibitors and anti-nutrients like phytic acid. The role of these anti-nutrients and enzyme inhibitors is to bind to the minerals in the body which results in poor nutrition absorption. Antinutrients and enzyme inhibitors may also cause slight discomfort to the stomach in the form of pain or flatulence.
Reducing or removing these enzyme inhibitors and anti-nutrients is possible through traditional methods of cooking like roasting, soaking, sprouting, and fermenting. The roasting process results in the least removal of antinutrients and sprouting & fermentation offer maximum removal.
Why is germinated brown rice classified as a natural functional food?
Germinated brown rice (GBR) is classified as a functional food because sprouting dramatically increases GABA, ferulic acid, Vitamin E, B vitamins, and total antioxidant activity while reducing calories and sugar versus milled white rice. Peer-reviewed studies show GBR suppresses hyperglycemia, lowers blood pressure, boosts immune function, and inhibits cancer cell development — validated benefits beyond ordinary nutrition.
GBR is a much better option when compared to brown rice. GBR ameliorates hyperglycemia, boosts the immune system, lowers blood pressure, inhibits the development of cancer cells, and assists the treatment of anxiety disorders. GBR is a natural functional food because:
- It is easily digested and absorbed easily
- Nutrients such as GABA (Gamma-aminobutyric acid), ferulic acid, protein, Vitamin E, dietary fiber, Niacin, magnesium, B Vitamins, total antioxidant activity are increased multifold in GBR when compared to brown rice.
- GBR contains fewer calories and sugar when compared to milled rice.
As discussed earlier, during germination, a decrease of phytic acid progresses with time. In the GBR process, not much decrease in phytate content occurs but there is a phenomenal positive change in the bioactive compounds which confers a host of benefits. Further dried GBR offers an excellent appearance, improved shelf life with more sweetness, excellent taste with better texture. It cooks easier when compared to brown rice.
What is GABA?
When brown rice is germinated, the most significant increase in the nutrient was observed in GABA levels. GABA, a neurotransmitter is naturally found in the human brain and spinal cord which helps in preventing insomnia, depression, and headaches. A study[1] showed that intake of GABA suppressed blood pressure and improved sleeplessness. A study[2] done on mice suggested that the antidepressant-like effects produced in the mice were due to GABA. Its main benefits are listed below:
- Promotes fat loss by the stimulation of the production of human growth hormones
- Increases the sleep cycle giving deeper rest
- Boosts the immune system
- Lowers Blood Pressure
- Assists the treatment of anxiety disorders
- Possible preventive effects on Alzheimer's disease or other cerebral related disorders such as amnesia and dementia.
It has long been thought that GABA is unable to cross the blood-brain barrier, but recent studies suggest otherwise. There is evidence of the presence of GABA transporter in the blood-brain barrier[1]. One more study[2] suggests that the beneficial effects of GABA taken through oral supplements may be through indirect channels like Enteric Nervous System. In addition, there are hundreds of online consumers who claim the beneficial effects of GABA supplements. In any case GBR is abundant with GABA and other nutrients, and is a natural functional food which offers many benefits.
What are the key health benefits of germinated brown rice (GABA rice)?
GBR's primary active compound is GABA (gamma-aminobutyric acid), a brain neurotransmitter that lowers blood pressure, improves sleep quality, and reduces depression and anxiety. GBR also contains gamma-oryzanol, tocotrienols, magnesium, and ferulic acid — each with independently validated cardiovascular, antioxidant, and anti-inflammatory effects. It may also offer protective effects against Alzheimer's disease and dementia.
| Nutrients | Biological activities in GBR |
|---|---|
| GABA | Hypotensive effect, Accelerating metabolism in brain, preventing headaches or depressions aftereffects of cerebral arteriosclerosis and cerebral apoplexy, Preventing climacteric disorder, Preventing presenile derangement such as insomnia and mental irritation, Activating renal function |
| Dietary fiber | Relieving constipation, Preventing cancer of colon, Regulating blood sugar levels |
| Inositols | Accelerating fat metabolism, Preventing fatty lever, Preventing arteriosclerosis |
| Ferulic acid | Scavenging super oxides, Suppressing melanogenesis |
| Phytic acid | Antioxidative effect, Protecting cardiovascular disease, Preventing platelet aggregation |
| Tocotrienols | Scavenging super oxides, Protecting skin from ultraviolet rays |
| Magnesium | Preventing heart diseases |
| Potassium | Lowering blood pressure |
| Zinc | Activating reproductive function, Preventing arteriosclerosis |
| Gamma- oryzanol | Antioxidative effect, Preventing skin aging, Modulating cholesterol values |
| Prolylendopeptidase inhibitor | Possible preventing Alzheimer’s disease |
How is germinated brown rice different from regular brown rice?
Is germinated brown rice gluten-free?
How do you cook germinated brown rice?
Can germinated brown rice be used as a substitute for regular brown rice in recipes?
Where can I buy germinated brown rice?
References
Takanaga H, Ohtsuki S, Hosoya Ki, Terasaki T. GAT2/BGT-1 as a system responsible for the transport of gamma-aminobutyric acid at the mouse blood-brain barrier. J Cereb Blood FlowMetab. 2001 Oct;21(10):1232-9. PubMed PMID: 11598501.
Boonstra, E., de Kleijn, R., Colzato, L. S., Alkemade, A., Forstmann, B. U., &Nieuwenhuis, S. (2015). Neurotransmitters as food supplements: the effects of GABA on brain and behavior. Frontiers in Psychology, 6, 1520. http://doi.org/10.3389/fpsyg.2015.01520
Okada, T.,Sugishita, T., Murakami, T., Murai, H., Saikusa, T., Horino, T., Onoda, A., Kajimoto, O., Takahashi, R. and Takahashi, T., 2000. Effect of the defatted rice germ enriched with GABA for sleeplessness, depression, autonomic disorder by oral administration. JOURNAL-JAPANESE SOCIETY OF FOOD SCIENCE AND TECHNOLOGY, 47(8), pp.596-603.
Mamiya, T., Kise, M., Morikawa, K., Aoto, H., Ukai, M. and Noda, Y., 2007.Effects of pre-germinated brown rice on depression-like behavior in mice. Pharmacology Biochemistry and Behavior, 86(1), pp.62-67.
Patil, S. B., & Khan, M. K. (2011). Germinated brown rice as a value added rice product: A review. Journal of Food Science and Technology, 48(6), 661–667. http://doi.org/10.1007/s13197-011-0232-4
Imam, M. U., Azmi, N. H., Bhanger, M. I., Ismail, N., & Ismail, M. (2012).Antidiabetic Properties of Germinated Brown Rice: A Systematic Review. Evidence-Based Complementary and Alternative Medicine : eCAM, 2012, 816501. http://doi.org/10.1155/2012/816501