Behind the Blend Series: The truth about Synthetic Vitamins

There’s been a lot of conversation lately about synthetic vitamins, especially on social media. People are asking questions about how they’re made, where they come from, and whether they belong in our food at all.

It’s a fair question. But it’s also a topic that deserves a little more clarity.

The truth is, most of the vitamins people take in supplement form, whether a daily multivitamin or a fortified drink, are synthetic. That’s not a secret. It’s how we’ve been able to deliver safe, stable, and effective nutrition to millions of people, affordably and consistently.

At REPCO, we use these same ingredients in the vitamin premixes we supply to grain mills, bakeries, and food manufacturers. We don’t cut corners. We don’t use anything we wouldn’t stand behind. And we’ve built strong partnerships with suppliers who meet the standards we require.

I understand why consumers have concerns; food is personal. But in my experience, synthetic doesn’t mean unsafe or unnecessary. It means we’ve found a way to meet global nutrition needs with precision and scale. That’s something we take seriously. Because for us, nutrition isn’t a trend, it’s a responsibility.

I want to take the time to dive into Synthetic Vitamins, why and how they’re used, and why they’re important. Because I believe everyone deserves to better understand what’s in their food, for goodness’ sake.

 

The difference between natural  and synthetic vitamins

The fundamental difference between natural and synthetic vitamins is that natural are obtained from whole food sources, while synthetic vitamins are made through a commercial process. (1) Aside from the way they’re made, there’s not much difference. Chemically, on a molecular level, they are almost the exact same. However, some studies suggest that natural vitamins and nutrients are absorbed and used by the body better than synthetic vitamins, which vary in quality and bioavailability. (2) That’s why our standards in the quality of raw ingredients we source are so high.

The problem with the world “natural”, particularly in food manufacturing, is that it can mean different things. One is in the food itself in the natural form and includes phytonutrients (think orange straight off tree). The other version of ‘natural’ is that same vitamin C from an orange but has been shipped hundreds of miles and been through many processing conditions including purification and then becomes a concentrated powder. It still originated from a natural item, but it does not resemble the natural source it started from except the target chemical is still there.

 

Common misconceptions (e.g., “synthetic = bad”)

1. Synthetic vitamins are not recognized or absorbed by the body as well as natural vitamins.

For most vitamins, the body doesn’t distinguish the source. A molecule of vitamin C or b12 is the same compound whether it came from a plant, lab, or factory. Some synthetic vitamins are actually better absorbed than their natural counterparts. For example, the bioavailability of vitamin B12 in supplements is about 50% higher than that from food sources. (4) The truth is, synthetic vitamins are often produced and used because they are well absorbed, and robust research has demonstrated bioavailability and biological activity.  Major health authorities consider fortified nutrients as effective in improving nutritional status, evidenced by population-wide improvements in blood nutrient levels and reductions in deficiency diseases after fortification. (5)  According to Scott Jensen, VP Quality, “We can use various forms of a chemical such as vitamin B9 folic acid or 5-methyltetrahydrofolate (5-MTHF) to enter various parts of the biochemical process to help those who have health concerns or challenges integrating a form of an item. This can help on bioavailability but also be flexible for the cost, taste, color, market availability, concentrations, and other factors for a given consumer and demographic.”

2. Synthetic means chemical and harmful, natural means safe.

Concentration matters more than source. Synthetic vitamins are chemically identical or analogous to natural ones, and at the low levels used in food fortification, they have a strong safety record. All vitamins, natural or synthetic, can be harmful in excessive amounts. It’s virtually impossible to overdose on the minute quantities of vitamins present in whole foods, but one can potentially reach toxic levels by taking concentrated pills or multiple fortified products.  This is where REPCO’s expertise and understanding of the body’s needs and strengths and weaknesses of various forms comes to help make the best solution for the challenge.

3. Vitamins in processed or fortified foods are useless compared to whole foods.

While we’re not going to argue whether natural whole foods are better for you than fortified processed foods, it is worth emphasizing that the vitamins used to fortify foods still work to provide basic nutritional needs in addition to a well balanced diet. The fortification of foods has demonstrated many health benefits in a large population, and while health is about the whole diet and lifestyle, vitamins still contribute to nutrient intake. (6)

 

4. Fortified foods lead to dangerous overconsumption of vitamins

Fortification policies are specifically designed to avoid excessive intakes. Health agencies set fortification levels such that even when consuming a variety of fortified foods, most people stay below safe limits. To put this in perspective, we produce 60,000 lbs of flour enrichment a day. The flour mill doses the enrichment at a quarter of an ounce (7 g) of concentrated vitamin enrichment  per 100 lbs of flour. This means that while our vitamins are highly concentrated, you’re receiving a miniscule amount across the fortified, bread, grains, cereals, and flour based foods you consume.  These amounts in the finished goods and consumer items are directed by government policy and tested for compliance by the manufacturers.

 

Why they’re used in food (stability, cost, accessibility)

The ability to produce vitamins and minerals from alternate sources means we can make food that is shelf-stable, affordable, and provide access to nutrition on a global scale. That means we can support people of all ages, cultures,  health conditions, and economic class with foods that not only have better nutritional value but are standardized and regulated to ensure safety and efficacy. We’ve been able to address nutritional deficiencies for the overall health and wellbeing of populations. For example; the mandatory fortification of foods using Folic Acid, the synthetic form of Folate, has significantly reduced the presence of birth defects by 20-50% in countries where folate fortification is required, compared to both prior to fortification and with countries who do not fortify their foods . (3) Folic acid is a vitamin used to enrich common food products produced across the globe, mostly in enriched wheat flour and grains, a common staple in many countries.

FDA regulations and safety

In the U.S., the use of vitamins and minerals in food has been highly regulated for decades.
The Food and Drug Administration (FDA) sets clear standards for how vitamins and minerals can be added to foods. This includes which forms are allowed, how much can be used, and how they’re labeled. The FDA maintains a list called the “Nutritional Quality Guidelines for Foods”, which outlines where fortification is appropriate. Additionally, most of the synthetic vitamins we use are classified as Generally Recognized as Safe (GRAS) based on extensive scientific research and usage history.

That means the vitamins we include in our premixes have been evaluated for:

• Purity
• Bioavailability (how well your body absorbs them)
• Consistency from batch to batch

Beyond that, food companies are required to follow Good Manufacturing Practices (GMPs), and suppliers must maintain documentation showing the quality, food safety, a nd traceability of each ingredient.

At REPCO, we go a step further. Every ingredient we use in a premix goes through a rigorous qualification process that includes third-party c ertificates of analysis, risk analysis, regulatory documentation, and testing for contaminants like heavy metals or pathogens. We keep those records on file, and we verify the quality and food safety risk challenges for that specific raw material   with every shipment.

REPCO’s approach to responsible vitamin fortification

Our lab is ISO 17025 certified and tests every raw ingredient coming in  for the quality and food safety risk challenges on that item. Additionally, every vitamin and mineral blend going out is assessed for quality and accuracy. Suppliers are vetted and visited by our CEO personally,  to ensure ethical and safe production practices are in place and strict standards are met and followed. Our  manufacturing facility is one of the cleanest in the world, and our Safety Record is top notch. Each vendor must be certified for food safety programs by independent auditors, just as REPCO certified for food safety programs.

From the Source: Our CEO’s Take

“ We enrich food so that the expecting mother, that is in the very early stages of pregnancy and is buying the hamburger off the dollar menu, gets the much needed folic acid for her baby from the hamburger bun. So that flour sent through food aid brings vital nutrients to populations who need them most. People and families across the world not only have access to quality nutrition, but they have freedom of choice in the foods they eat and the diets they consume.”

The ability to produce vitamin and mineral blends for food fortification plays a huge role in public health. It is our responsibility to ensure safe and ethical practices in food fortification. Because everyone deserves access to quality nutrition, for goodness’ sake.”