Nutrition That Functions: Why Isolated Nutrients Aren’t Enough

By Krista Maas de Villiers, BSc Dietetics, Founder of Nunona 

For decades, prenatal nutrition has largely been reduced to a label.

Iron. Folate. DHA. Choline. Vitamin D.

All important. But a list of nutrients only tells you what’s inside a product. It doesn’t tell you what’s absorbed, or whether that product is providing everything your body needs to function through TTC, pregnancy, and postpartum.

A pill can deliver synthetic, isolated micronutrients. But delivering micronutrients and nourishing a body are not the same thing.

Your Body Isn’t a Nutrient Checklist

Pregnancy and postpartum are among the most nutritionally demanding periods of life. Your body is building new tissue, expanding blood volume, supporting fetal brain development, preparing for birth, recovering, regulating hormones, and potentially producing breastmilk. Energy and nutrient requirements change significantly to support this work.¹,²

Nutrition has to do more than prevent deficiency. It has to function.

And yet, research shows that even with supplement use, many pregnant women still have inadequate intakes of nutrients including choline, magnesium, and vitamin E.³

Why Synthetic, Isolated Micronutrients Are Only Part of the Picture

I’ve written before about why [the form and absorption of synthetic nutrients matter]. But even if every micronutrient on a prenatal label were perfectly absorbed, something would still be missing: food.

A conventional prenatal provides virtually no calories, protein, fiber, carbohydrates, healthy fats, or satiety.

We’ve confused isolated micronutrients with complete nourishment.

Real food doesn't work that way. Nutrients arrive alongside other nutrients and macronutrients that influence how our bodies respond to them. Vitamin C, for example, enhances the absorption of non-heme iron, while dietary fat supports the absorption of fat-soluble vitamins.⁴,⁵ Pairing carbohydrates with protein, fat, and fiber can also help moderate the post-meal glucose response.⁶

The form matters. The combination matters. And what surrounds the nutrient matters.

A Protein Bar Isn’t Complete Nutrition Either

A prenatal pill can provide micronutrients. A protein bar can provide protein and calories. A lactation cookie can provide carbohydrates and energy.

But the maternal body needs all of these systems supported together.

That’s what functional maternal nutrition should mean: micros + macros + real food, intentionally designed to support biological function.

Nutrition Built to Function

Nunona replaces the conventional prenatal by combining the micronutrients you need with something a synthetic pill could never provide: real nourishment.

Each daily serving of Mama Bites combines 27+ essential micronutrients with plant-based protein, healthy fats, complex carbohydrates, fiber, and real calories from organic food.

You’re getting DHA from microalgae, choline from organic sunflower seeds, iron from organic spinach, and folate from organic leafy greens; and you’re also fueling your body, supporting steadier blood sugar, nourishing your gut, and providing the energy and macronutrients your body needs through pregnancy and postpartum.

Because maternal nutrition shouldn’t be measured by how many nutrients fit on a label.

It should be measured by what that nutrition helps your body do.

Build. Fuel. Absorb. Recover. Nourish.

That’s nutrition that functions.

References

1. Butte NF, King JC. Energy requirements during pregnancy and lactation. Public Health Nutr. 2005;8(7A):1010-1027. doi:10.1079/PHN2005793.

2. National Academies of Sciences, Engineering, and Medicine. Dietary Reference Intakes for Energy. National Academies Press; 2023.

3. Bailey RL, Pac SG, Fulgoni VL III, Reidy KC, Catalano PM. Estimation of total usual dietary intakes of pregnant women in the United States. JAMA Netw Open. 2019;2(6):e195967. doi:10.1001/jamanetworkopen.2019.5967.

4. Hurrell R, Egli I. Iron bioavailability and dietary reference values. Am J Clin Nutr. 2010;91(5):1461S-1467S. doi:10.3945/ajcn.2010.28674F.

5. Reboul E. Absorption of vitamin A and carotenoids by the enterocyte: focus on transport proteins. Nutrients. 2013;5(9):3563-3581. doi:10.3390/nu5093563.

6. Meng H, Matthan NR, Ausman LM, Lichtenstein AH. Effect of prior meal macronutrient composition on postprandial glycemic responses and glycemic index and glycemic load value determinations. Am J Clin Nutr. 2017;106(5):1246-1256. doi:10.3945/ajcn.117.162727.