Vitamina B2 Riboflavina Pura en Polvo - 227 g (8 oz)

What is vitamin B2 (riboflavin)?

Vitamin B2, also known as riboflavin, is a water-soluble vitamin essential for the body. It is part of the B vitamin complex and plays a crucial role in cellular energy production. Riboflavin is a precursor to two fundamental coenzymes: flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD), which participate in oxidation-reduction reactions in the metabolism of carbohydrates, fats, and proteins.

This product offers riboflavin in its pure form, without additives or excipients, making it an ideal option for those seeking a high-quality ingredient for formulations, dietary supplementation, or research. It is presented as a yellow crystalline powder with a bitter taste, slightly soluble in water. It is important to store it in a cool, dry place, protected from light and heat.

Main scientifically backed benefits

According to the European Food Safety Authority (EFSA), vitamin B2 contributes to various physiological functions:

• Contributes to normal energy-yielding metabolism, facilitating the transformation of food into usable energy by cells.
• Contributes to the normal functioning of the nervous system, supporting nerve transmission and neuronal health.
• Contributes to the maintenance of normal mucous membranes, such as those of the digestive and respiratory tracts.
• Contributes to the maintenance of normal red blood cells, promoting oxygen transport.
• Contributes to normal iron metabolism, helping to prevent iron-deficiency anemia.
• Contributes to the protection of cells from oxidative stress, thanks to its role as an antioxidant.

These benefits have been recognized by EFSA and can be included in the labeling of food supplements containing riboflavin.

Recommended dosage and available forms

The recommended daily allowance (RDA) of vitamin B2 for adults in the European Union is 1.4 mg per day for men and 1.2 mg for women. However, supplemental doses typically range from 10 to 100 mg daily, depending on individual needs.

This product comes in pure powder form, allowing for great flexibility in dosing. It can be taken directly mixed with water or food, or used to fill capsules. It is important to note that the powder has a characteristic bitter taste. For precise dosing, the use of a precision scale is recommended. A level teaspoon (approximately 1 gram) is equivalent to 1000 mg of riboflavin, a much higher amount than the RDA, so the dose should be adjusted according to the indications of a healthcare professional.

Regarding forms, pure riboflavin (like that in this product) is the inactive form, which the body converts into its active forms (FMN and FAD). There is also riboflavin 5'-phosphate, which is the active form and may have a slightly different bioavailability. For most people, pure riboflavin is equally effective.

Who should take riboflavin?

Riboflavin can be beneficial for various groups of people:

• People on restrictive diets: vegetarians, vegans, or those following diets low in dairy and meat, as these foods are rich sources of riboflavin.
• Athletes: due to its role in energy metabolism, it can support physical performance and recovery.
• People with vitamin B2 deficiency: symptoms include fatigue, inflammation of the tongue, cracks at the corners of the mouth, and seborrheic dermatitis.
• Older adults: the absorption of B vitamins may decrease with age.

However, before starting any supplementation, it is advisable to consult a doctor or nutritionist to assess individual needs.

Possible side effects and contraindications

Riboflavin is generally safe and well-tolerated, even at high doses. Being water-soluble, excess is eliminated through urine, which may acquire an intense yellow color (riboflavinuria), a harmless and temporary effect.

At very high doses (above 400 mg/day), mild gastrointestinal discomfort, such as diarrhea or increased urinary frequency, could occur. No significant drug interactions have been established, although it may interfere with some urine tests.

This product is intended for healthy adults. It should not be used by pregnant or breastfeeding women without medical supervision. Keep out of reach of children.

Frequently asked questions

Does riboflavin powder have a taste? Yes, it has a characteristic bitter taste. It can be mixed with juices, smoothies, or foods to mask it.

How should it be stored? In a cool, dry place, away from direct sunlight and heat sources. The product has a shelf life of 1.5 to 2.5 years from manufacturing.

Is it suitable for vegans? Yes, pure riboflavin is usually produced by chemical synthesis or fermentation, without animal-derived ingredients. It is recommended to check the manufacturer's information.

Can I take riboflavin with other B vitamins? Yes, riboflavin is often supplemented with other B vitamins, as they act synergistically in metabolism.

What is the difference between riboflavin and riboflavin 5'-phosphate? Riboflavin 5'-phosphate is the active form (coenzyme) that the body can use directly, while pure riboflavin must be converted. Both are effective; the pure form is more common in supplements and formulations.

Food supplements should not be used as a substitute for a balanced and varied diet. Do not exceed the recommended daily dose.