# Biodal (Vitamin D3 from Lichen)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/biodal
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-23
**Evidence Score:** 2 / 10
**Category:** Other
**Also Known As:** Cholecalciferol from Cladonia rangiferina, Vegan D3, Lichen-derived vitamin D3, Plant-based cholecalciferol, Reindeer moss vitamin D3, VitaShine D3, Algae-fungi vitamin D3

## Overview

Biodal is a trademarked vegan vitamin D3 (cholecalciferol) derived from lichen, delivering the same bioactive compound as animal-sourced D3. It exerts its effects through conversion to 25-hydroxyvitamin D in the liver and then to the active hormone 1,25-dihydroxyvitamin D (calcitriol) in the kidneys, which binds vitamin D receptors to regulate [calcium absorption](/ingredients/condition/bone-health) and immune gene expression.

## Health Benefits

• Supports calcium homeostasis and [bone health](/ingredients/condition/bone-health) through vitamin D receptor activation (mechanism established for vitamin D3, no Biodal-specific clinical evidence)
• Regulates [immune function](/ingredients/condition/immune-support) through conversion to active 1,25-dihydroxyvitamin D (general vitamin D3 pathway, no lichen-specific trials)
• Provides bioequivalent vitamin D3 for vegans compared to lanolin-derived sources (claimed bioequivalence without dedicated trial data)
• Offers pesticide-free alternative to animal-derived vitamin D3 (quality claim without clinical comparison studies)
• Maintains vitamin D status in populations avoiding animal products (theoretical benefit, no Biodal-specific research)

## Mechanism of Action

Biodal delivers cholecalciferol, which undergoes 25-hydroxylation by hepatic CYP2R1 and CYP27A1 enzymes to form 25-hydroxyvitamin D3 (calcidiol). Calcidiol is further hydroxylated in the kidneys by CYP27B1 (1-alpha-hydroxylase) to produce calcitriol (1,25-dihydroxyvitamin D3), the biologically active form. Calcitriol binds the nuclear vitamin D receptor (VDR), forming a heterodimer with the retinoid X receptor (RXR) that upregulates genes controlling intestinal [calcium absorption](/ingredients/condition/bone-health) via TRPV6 channels and calbindin-D9k, as well as immune-modulatory genes including cathelicidin.

## Clinical Summary

Clinical evidence supporting Biodal specifically is absent in the published literature; all available data are extrapolated from trials using cholecalciferol regardless of source. Randomized controlled trials on cholecalciferol supplementation (400–4000 IU/day) in populations including postmenopausal women and older adults consistently show increases in serum 25-hydroxyvitamin D by 10–25 ng/mL and modest reductions in fracture risk when combined with calcium. A 2022 meta-analysis of 46 RCTs (n>49,000) found cholecalciferol more effective than ergocalciferol (D2) at raising serum 25(OH)D levels, supporting the use of D3-form products like Biodal. No head-to-head trials have compared lichen-derived D3 to lanolin-derived D3 for clinical endpoints, though chemical equivalence is assumed.

## Nutritional Profile

Biodal is a concentrated vitamin D3 (cholecalciferol) extract derived from lichen (primarily Cladonia and Usnea species), standardized to deliver specific IU doses of vitamin D3 per serving — commonly formulated at 1,000–5,000 IU per unit dose depending on product application. As a micronutrient ingredient rather than a whole food, it contributes negligible macronutrients (protein, fat, carbohydrate near 0g at functional doses). The primary bioactive compound is cholecalciferol (vitamin D3, C27H44O), chemically identical to animal-derived vitamin D3 from lanolin, with a molecular weight of 384.64 g/mol. Lichen naturally biosynthesize vitamin D3 via UV exposure, making this one of the only plant-kingdom sources of true D3 (as opposed to D2/ergocalciferol found in fungi). Bioavailability is considered equivalent to lanolin-derived cholecalciferol, as the molecular structure is identical; absorption follows the same lipid-dependent pathway requiring dietary fat co-ingestion for optimal micellar incorporation, with estimated absorption efficiency of 50–80% under optimal conditions. Upon absorption, cholecalciferol undergoes hepatic hydroxylation to 25-hydroxyvitamin D [25(OH)D3] and subsequent renal conversion to the active metabolite 1,25-dihydroxyvitamin D3 (calcitriol). No significant co-occurring minerals or fiber are present at relevant concentrations in the purified extract. The ingredient is typically delivered in an oil-based carrier (e.g., sunflower or MCT oil) to enhance bioavailability, with the carrier contributing minor amounts of fatty acids depending on formulation.

## Dosage & Preparation

No clinically studied dosage ranges for Biodal or lichen-derived D3 appear in available research. Producers note potential for 500 million 1000 IU doses annually from lichen cultivation, suggesting common supplemental dosing around 1000 IU, but without specific standardization details from clinical studies. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Cholecalciferol from lichen (Biodal) carries the same safety profile as conventional vitamin D3; toxicity (hypercalcemia, hypercalciuria) is rare below 10,000 IU/day in healthy adults but risk increases with prolonged high-dose use. Biodal may interact with thiazide diuretics by amplifying hypercalcemia risk, and with calcipotriene or other vitamin D analogs by additive VDR activation. Patients on corticosteroids face accelerated 25(OH)D catabolism, potentially requiring higher doses, while those on antiepileptics (phenytoin, carbamazepine) may experience increased D3 [metabolism](/ingredients/condition/weight-management) via CYP3A4 induction. Biodal is considered safe in pregnancy at RDA levels (600 IU/day); doses above 4,000 IU/day during pregnancy should only be used under medical supervision.

## Scientific Research

No specific human clinical trials, RCTs, or meta-analyses on Biodal or lichen-derived vitamin D3 were found in the research dossier. While general vitamin D3 research exists, no PubMed PMIDs or studies address Biodal uniquely; lichen D3 is presented as bioequivalent to lanolin-derived D3 without dedicated trial data.

## Historical & Cultural Context

No historical or traditional medicinal use of lichen for vitamin D3 supplementation is documented in the research. Lichens are noted exclusively for modern vegan supplementation purposes, not traditional medicine systems.

## Synergistic Combinations

Calcium, Magnesium, Vitamin K2, Zinc, Boron

## Frequently Asked Questions

### Is Biodal vitamin D3 as effective as regular vitamin D3?

Biodal delivers identical cholecalciferol molecules as lanolin-derived vitamin D3, so bioavailability and potency are chemically equivalent. No clinical trials have directly compared lichen-sourced to animal-sourced D3, but both raise serum 25-hydroxyvitamin D at the same rate per IU, making Biodal a suitable vegan alternative with no expected efficacy difference.

### What makes Biodal vitamin D3 vegan?

Conventional vitamin D3 is extracted from lanolin, a byproduct of sheep wool, making it unsuitable for vegans. Biodal is extracted from lichen, a symbiotic organism of algae and fungi that naturally synthesizes cholecalciferol, producing a plant-kingdom-sourced D3 that is certified vegan. The extraction process yields the same cholecalciferol compound without any animal-derived raw materials.

### What is the recommended dosage of Biodal vitamin D3?

Biodal is dosed in standard vitamin D3 units (IU or mcg); the general adult RDA for vitamin D is 600–800 IU/day (15–20 mcg), with the tolerable upper intake level set at 4,000 IU/day by health authorities. Many clinicians supplement at 1,000–2,000 IU/day to maintain serum 25-hydroxyvitamin D above 30 ng/mL, though optimal dosing should be guided by baseline blood levels. Doses exceeding 4,000 IU/day require medical oversight to avoid hypercalcemia.

### Can Biodal vitamin D3 improve bone density?

Vitamin D3 in the form of calcitriol upregulates intestinal TRPV6 calcium channels and calbindin proteins, increasing calcium absorption by up to 30–40%, which is critical for bone mineralization. Clinical trials combining vitamin D3 (700–800 IU/day) with calcium show a 20–30% reduction in hip fracture risk in elderly populations, though vitamin D alone without adequate calcium shows smaller effects. Biodal provides the same cholecalciferol starting material, so these skeletal benefits are expected to apply equally.

### Does Biodal vitamin D3 interact with any medications?

Biodal can interact with thiazide diuretics (e.g., hydrochlorothiazide) by reducing renal calcium excretion, potentially causing hypercalcemia when combined with high-dose D3. Antiepileptic drugs including phenytoin and carbamazepine induce CYP3A4-mediated catabolism of 25-hydroxyvitamin D, necessitating higher D3 intake to maintain adequate serum levels. Orlistat and cholestyramine reduce fat-soluble vitamin absorption in the gut, which can lower Biodal absorption by 30–40%, requiring dosage adjustment.

### Is Biodal vitamin D3 suitable for people with lichen allergies?

Biodal is derived from lichen, so individuals with documented lichen sensitivities should exercise caution and consult a healthcare provider before use. While lichen allergies are rare, the sourcing material means this product may not be appropriate for all consumers. A patch test or medical consultation is recommended if you have known sensitivities to lichens or related organisms.

### How does lichen-derived vitamin D3 compare to mushroom-derived vitamin D2 for vegan diets?

Biodal provides vitamin D3 (cholecalciferol), which is more bioavailable and effective at raising blood vitamin D levels than plant-based vitamin D2 (ergocalciferol) found in mushrooms. Vitamin D3 from lichen is structurally identical to the form produced by human skin when exposed to sunlight, making it superior for maintaining adequate vitamin D status in vegans. Most clinical evidence favors D3 over D2 for sustained vitamin D sufficiency.

### Should I take Biodal vitamin D3 with a meal for better absorption?

Yes, taking Biodal with a fat-containing meal enhances absorption, as vitamin D3 is fat-soluble and requires dietary lipids for optimal uptake in the intestines. Studies consistently show that vitamin D3 taken with foods containing fat (oils, nuts, dairy, or meat) results in significantly higher bioavailability than taking it on an empty stomach. For best results, pair your Biodal supplement with breakfast or another meal containing healthy fats.

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*Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com*
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