Did you know

Did you know: The tissues inside your mouth are more absorbent than your digestive system—they absorb up to 90% of the nutrients they come in contact with.

Did you know

Did you know: The tissues inside your mouth are more absorbent than your digestive system—they absorb up to 90% of the nutrients they come in contact with.

Our Research Process

Our resident scientists conducted a global search of medical journals spanning four decades to examine the efficacy of buccal and sublingual administration of five micronutrients: Vitamin A, Vitamin B1, Vitamin B12, Vitamin C, and Vitamin D.
Led by quantitative scientist
Dr. Andrijana Radivojevic, Ph.D.
Comprehensive search of medical literature26 total studies included in our analysis

Our Research Process

Our resident scientists conducted a global search of medical journals spanning four decades to examine the efficacy of buccal and sublingual administration of five micronutrients: Vitamin A, Vitamin B1, Vitamin B12, Vitamin C, and Vitamin D.
Led by quantitative scientist
Dr. Andrijana Radivojevic, Ph.D.
Comprehensive search of medical literature26 total studies included in our analysis

What We Found

Research from the past four decades consistently shows that buccal and sublingual administration of nutrients is equally or more effective than pills, capsules, injections, and gummies. Even vitamin-fortified toothpaste was shown to be highly-effective at correcting nutrient deficiencies.Our full report has facts and findings from 26 studies, but here are some highlights.

What We Found

Research from the past four decades consistently shows that buccal and sublingual administration of nutrients is equally or more effective than pills, capsules, injections, and gummies. Even vitamin-fortified toothpaste was shown to be highly-effective at correcting nutrient deficiencies.Our full report has facts and findings from 26 studies, but here are some highlights.

Sublingual and Buccal Nutrients Can Be Absorbed More Efficiently Than Oral Nutrients

Sublingual and buccal vitamins bypass the digestive system and go straight into the bloodstream, where the body can use them quickly and efficiently.Adults taking buccal vitamin D supplements nearly doubled their serum vitamin D levels after 30 days compared to those given gelatin capsules.Similarly, all eleven of the studies in our meta-analysis involving vitamin B12 concluded that sublingual or buccal administration was equally or more effective than oral administration at raising serum levels.

Sublingual and Buccal Nutrients Can Be Absorbed More Efficiently Than Oral Nutrients

Sublingual and buccal vitamins bypass the digestive system and go straight into the bloodstream, where the body can use them quickly and efficiently.Adults taking buccal vitamin D supplements nearly doubled their serum vitamin D levels after 30 days compared to those given gelatin capsules.Similarly, all eleven of the studies in our meta-analysis involving vitamin B12 concluded that sublingual or buccal administration was equally or more effective than oral administration at raising serum levels.

Vitamin-Fortified Toothpaste Is Highly Effective at Correcting Nutrient Deficiencies

We reviewed three studies about the effectiveness of vitamin-fortified toothpaste to administer micronutrients—all of them concluded it was an effective mechanism, especially for vegans and elderly folks.

Vitamin-Fortified Toothpaste Is Highly Effective at Correcting Nutrient Deficiencies

We reviewed three studies about the effectiveness of vitamin-fortified toothpaste to administer micronutrients—all of them concluded it was an effective mechanism, especially for vegans and elderly folks.

Sublingual Vitamins Can Work Better Than Intramuscular Injections

Vitamin injections have gained popularity in recent years, but our meta-analysis found that you might be better off taking your vitamins under your tongue rather than in your arm.Adults who took sublingual B12 had 15.5% higher serum B12 levels compared to those who took an intramuscular injection.“Sublingual B12 should become the first line option for patients with vitamin B12 deficiency,” the researchers concluded.

Sublingual Vitamins Can Work Better Than Intramuscular Injections

Vitamin injections have gained popularity in recent years, but our meta-analysis found that you might be better off taking your vitamins under your tongue rather than in your arm.Adults who took sublingual B12 had 15.5% higher serum B12 levels compared to those who took an intramuscular injection.“Sublingual B12 should become the first line option for patients with vitamin B12 deficiency,” the researchers concluded.