What Is Riboflavin?

Riboflavin, also known as vitamin B2, is a water-soluble vitamin that helps your body convert food into fuel. It is a key part of two important coenzymes—flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD)—which are essential for turning carbohydrates, fats, and proteins into usable energy. This vitamin also acts as an antioxidant, protecting your cells from free radical damage. While riboflavin is naturally present in dairy products, eggs, lean meats, and green vegetables, many Canadians may not get enough from diet alone. Supplementing with Source Naturals Vitamin B-2 can help fill that gap and support overall wellness.

Who Should Consider Supplementation?

If you follow a vegetarian or vegan diet, you may have a higher risk of low riboflavin intake because many natural sources come from animal products. Individuals with digestive conditions that affect nutrient absorption, like Crohn’s disease or coeliac disease, might also benefit from extra riboflavin. Older adults, athletes, and people under chronic stress may have increased needs as well. As always, talk to your health-care practitioner to see if a riboflavin supplement is right for you.

Health Benefits of Riboflavin

Riboflavin plays several important roles in the body. It helps the body metabolise carbohydrates, fats, and proteins to produce energy. It also contributes to the formation of red blood cells and helps maintain healthy skin and vision. By supporting the activity of antioxidant enzymes, riboflavin helps protect cells from oxidative stress. The 100 mg dose in Source Naturals Vitamin B-2 is especially useful for those with higher energy demands or specific health needs.

How to Choose the Right Supplement

When selecting a riboflavin supplement, look for a well-absorbed form and a dosage that fits your needs. Source Naturals Vitamin B-2 uses standard riboflavin, which is efficiently converted in the body and widely studied. This product is suitable for vegetarians and free of common allergens such as yeast, dairy, egg, gluten, corn, soy, and wheat. It contains No artificial colours, flavors, or preservatives. Manufactured in Scotts Valley, California, under strict Good Manufacturing Practises (cGMP), Source Naturals has been a trusted brand for over 40 years.

Dosage and Safety Information

The recommended dose is one tablet daily, preferably with a meal to enhance absorption. Riboflavin is water-soluble; any excess is excreted in urine, which may turn a bright yellow colour—this is harmless and normal. No tolerable upper intake level has been established for riboflavin due to its low toxicity, but doses up to 400 mg daily are generally considered safe for adults. Always read the label and follow directions for use. Consult a health-care practitioner if you are pregnant, breastfeeding, or have a medical condition. Side effects are rare but may include mild digestive upset.

Frequently Asked Questions

Can I take riboflavin on an empty stomach? Yes, but taking it with food may improve absorption and reduce the chance of stomach upset.

Is this product gluten-free? Yes, it contains No gluten, as stated on the label.

How long does one bottle last? With 250 tablets and one tablet per day, this bottle provides an 8-month supply.

What is the difference between riboflavin and riboflavin 5'-phosphate? Riboflavin 5'-phosphate is the active coenzyme form, but standard riboflavin is efficiently converted in the body. Both are effective; the choice depends on personal preference and cost.

These statements have not been evaluated by Health Canada. This product is not intended to diagnose, treat, , or prevent any disease.