The single most common question BIOVIT receives from food and drink formulators is some version of the same concern: will natural vitamins actually survive my process? It is a fair question. It is also one we have spent years building the data to answer definitively.
The short answer is yes - with the right formulation approach. The longer answer, which is more useful to anyone working in product development, is that stability is not a natural versus synthetic question. It is a nutrient-specific, process-specific, formulation-specific question. And the answer is the same for natural ingredients as it is for synthetic ones: know your degradation profile, calculate your overages, and test in the real product.
What follows is a practical guide to how natural vitamins behave across the major processing methods used in food and drink manufacturing, grounded in BIOVIT's own stability database and the real shelf-life results achieved by brands currently using our ingredients.
Why Stability Is Not a Natural vs Synthetic Debate
There is a persistent assumption in food manufacturing that synthetic vitamins are inherently more stable than natural ones. This assumption is not well supported by the evidence - and it obscures the more important truth, which is that stability varies far more by nutrient type and processing condition than by whether the nutrient came from a plant or a laboratory.
Vitamin C is sensitive to heat, oxygen, light, and moisture - regardless of whether it arrives as ascorbic acid from a chemical synthesis process or as acerola cherry extract. Vitamin D3 is relatively stable across most processing conditions - whether it comes from lichen or lanolin. Minerals are highly stable thermally - whether they come from algae and seaweed or from carbonates and sulphates.
One genuine advantage of synthetic vitamins is that they can be chemically stabilised - encapsulated, coated, or modified to improve their resilience to specific processing conditions. BIOVIT's approach achieves the same end through formulation: identifying the natural source with the most favourable stability profile for a given nutrient, building precise overages into every blend, and validating the result against the actual processing conditions and shelf-life target of the finished product.
“Every formulation we produce is built around the real processing conditions and shelf-life target of the product it is going into. We do not apply a generic overage and hope for the best. We calculate precisely - nutrient by nutrient, process by process - using our stability database built with RSSL and Eurofins. That is why our clients are consistently hitting their label claims at end of shelf life.” - Eimear Sutton, RNutr MSc - Head of Nutrition, BIOVIT
Nutrient Sensitivity: A Practical Reference
Understanding how individual vitamins and minerals behave under processing conditions is the starting point for any formulation. The table below summarises the key sensitivities and what they mean in practice.
Vitamin / Mineral
Vitamin C
Main Sensitivity: Heat, oxygen, light, moisture
Notes for Formulators: Most sensitive. Significant overages required for UHT and baking. Dry-blended formats need minimal overage.
Folate (B9)
Main Sensitivity: Heat, light, oxygen
Notes for Formulators: Notable losses during cooking and high-temperature processing. Overage essential.
Vitamin B1 (Thiamine)
Main Sensitivity: Heat, alkaline pH
Notes for Formulators: Stable in dry form. Losses at high pH or sustained high heat.
Vitamin B12
Main Sensitivity: Light, extended heat
Notes for Formulators: Reasonably stable in UHT. BIOVIT B12 from shiitake - Cheerful Buddha UHT data available.
Vitamin D3
Main Sensitivity: Oxidation
Notes for Formulators: Generally stable across most processing. BIOVIT D3 from lichen - validated across UHT and dry blending.
Vitamin A
Main Sensitivity: Oxidation, light
Notes for Formulators: Fat-soluble. Encapsulation or antioxidant protection in light-exposed formats.
Iron
Main Sensitivity: Interaction with other ingredients
Notes for Formulators: Very stable thermally. Can cause off-flavours with some minerals. BIOVIT curry leaf iron is taste-neutral.
Calcium, Magnesium, Zinc
Main Sensitivity: Minimal thermal sensitivity
Notes for Formulators: Minerals are generally highly stable across all processing methods.
The Overage Methodology: How BIOVIT Ensures Label Compliance
An overage is the additional quantity of a nutrient added at the point of manufacture to compensate for predicted losses during processing and storage, ensuring that the declared amount is present at the end of the stated shelf life. It is standard practice for any fortified product - natural or synthetic.
What makes BIOVIT's approach distinctive is the specificity of the overage calculations. Rather than applying conservative industry-standard estimates, BIOVIT calculates overages from its own tested degradation data for each nutrient in each processing format. For a UHT beverage, the overage for Vitamin C from acerola cherry extract will differ from the overage for the same ingredient in a dry-blended powder. Both figures are derived from actual stability tests, not assumptions.
This approach is built into every custom formulation BIOVIT produces. Brands do not need to conduct their own stability testing from scratch - they can access BIOVIT's existing database and have overages calculated as part of the formulation service.
Live Shelf Life Proof: What BIOVIT Clients Have Achieved
The most compelling evidence for natural vitamin stability is not a laboratory test report. It is a product on shelf, with a declared nutrient content, at the end of its shelf life, in full compliance with its label claim. These are BIOVIT's current live examples.
12 months UHT shelf life achieved by Cheerful Buddha sparkling drinks (D3, B12, Iron) - verified by RSSL and Eurofins
Cheerful Buddha x BIOVIT - live production
“Our customers expect the nutrients in Cheerful Buddha products to be from natural sources.” - Cheerful Buddha
Cheerful Buddha's functional sparkling drinks - fortified with Vitamin D3 from lichen, B12 from shiitake mushroom, and Iron from curry leaf - undergo UHT processing at 135-150°C and are sold in a carbonated format with inherent pH and light-exposure challenges. A 12-month shelf life with full nutrient retention is the result. This is the most demanding combination of processing conditions in BIOVIT's live product portfolio, and it stands as the definitive answer to UHT stability concerns.
Purition's Broad Spectrum porridge blend - nine BIOVIT ingredients including Vitamin D3, Vitamin C, Folate, B12, Iron, Calcium, Iodine, Selenium, and Chromium - uses dry blending, the simplest processing method, achieving an 18-month shelf life. No overages were required. Organic certification was maintained throughout.
“With BIOVIT, we've found a partner who understands that the future of nutrition isn't about isolating nutrients in a lab, but rather harnessing the complete nutritional profile that nature has already perfected.” - Purition
Veloforte's CollagenPro powder - a dry-blended sports nutrition format containing Vitamin D3, Zinc, and Vitamin C - achieved a 24-month shelf life. Love Mushrooms' B12 supplement capsules, also dry-blended, achieved the same 24-month result.
“Access to naturally derived, compliant nutrients like organic B12 allows brands like ours to make legitimate health claims while staying true to clean-label principles. That is essential if you want to compete with conventional products without compromising on values.” - Love Mushrooms
Addressing Raw Material Variability
One challenge that is genuinely more relevant for natural nutrients than synthetic ones is variability in raw material composition. A synthetic vitamin compound has a defined concentration by specification. A natural food ingredient - acerola cherry, lichen, spinach leaf - has a nutrient content that can vary with growing conditions, harvest timing, and extraction batch.
BIOVIT manages this through rigorous incoming quality control and specification-based purchasing. Every batch of raw material is tested for nutrient concentration before it enters the blend. Formulations are built to account for the lower end of the specified concentration range, ensuring that even variation within batch does not risk under-delivery in the finished product.
This is not a problem unique to natural nutrients - it is the standard quality control challenge for any ingredient with biological origin. With appropriate systems, it is fully manageable, and it does not meaningfully affect the stability or consistency of the finished formulation.
The Conclusion Formulators Need
Natural vitamins are stable in food processing. The evidence is on shelf, in live products, with verified shelf-life data. The approach that makes it work is the same approach that makes synthetic fortification work: understand your nutrient sensitivities, characterise your processing conditions, calculate your overages, and test your finished product.
What BIOVIT brings to that process is the most comprehensive stability database for natural nutrients in the industry, a registered nutritionist who builds overage calculations into every formulation, and a set of live case studies that cover dry blending, UHT, carbonation, and beyond.
The question is not whether natural vitamins can survive your process. The question is whether you have the right partner to formulate them correctly.
Get the Stability Data for Your Format
Download BIOVIT's Stability Data Pack or book a formulation call with Eimear Sutton, RNutr MSc, to discuss overage calculations for your specific processing method and shelf-life target.
Download Stability Data Pack or Request a Sample - biovit.com
