Nutritional comparison of dried and fresh vegetables: nutrients that remain and nutrients that are lost
Summary of this article
Comparing the nutrition of dried and fresh vegetables, dietary fiber, minerals, and vitamins A, E, and K are well retained, while vitamin C and vitamin B1 tend to decrease relatively easily. We explain retention trends in spinach, cabbage, and carrots; compare drying methods including sun-drying, hot-air drying, low-temperature drying, and freeze-drying; and cover effective ways to use them, such as using the soaking liquid, avoiding long cooking times, and combining them with oil.
TOC
What you will learn from this article
- Nutrients That Remain in Dried Vegetables and Those Easily Lost
- Components that tend to remain, by major vegetable
- How the drying method affects the finished product
- How to make good use of dried vegetables
Answering the Question “Do Dried Vegetables Have Any Nutrients?” Honestly
The most common question about dried vegetables is, “Don’t the nutrients disappear when they’re dried?”
To put the conclusion first, nutrients split clearly into “those that mostly remain” and “those that decrease easily.”As a dried-vegetable maker, we’ll share the data honestly—not just the convenient parts.
Retention Rate by Nutrient
Nutrients That Remain Almost Unchanged
Nutrients That Decrease Easily
There’s an important point here. Vitamin C does decrease, but dietary fiber and minerals remain solidly. What tends to run short in the Japanese diet is dietary fiber and minerals, so dried vegetables are very helpful for supplementing them.
Nutrient Retention Data by Vegetable
Spinach,
cabbage
Carrot
Carrot’s β-carotene is inherently highly stable, and most of it remains even after drying.
How the drying method affects the finished product
The way nutrients remain also changes by drying method.
Freeze-drying excels at retaining color and aroma. However, it costs more than hot-air drying. For everyday use, the more cost-balanced hot-air drying or low-temperature drying is recommended, contained in burdock and cocoa.
Three tips for making good use of dried vegetables
Tip 1: Supplement the Easily Depleted Vitamin C Separately
Since it’s hard to get enough vitamin C from dried vegetables alone, combining them with fruit or salad is ideal. The best positioning for dried vegetables is strictly as a “boost against vegetable shortage.”
Tip 2: Use the Soaking Liquid Too
The liquid from rehydrating in water or hot water has water-soluble vitamins and minerals dissolved into it. Adding them to miso soup or soup and drinking the soaking liquid too is the way to take in nutrients with the least waste.
Tip 3: A Daily “Little Extra” Bit by Bit
Rather than eating a lot at once, the habit of adding a pinch to your daily miso soup or soup is easier to keep using and lets you include vegetables without strain.
FAQ
Q1: Can dried vegetables replace fresh vegetables?
They’re not a complete substitute, but they’re plenty effective as a supplementary means against vegetable shortage. For dietary fiber and mineral supplementation in particular, dried vegetables can be expected to be about as effective as fresh. Supplement vitamin C with fruit or a fresh salad.
Q2: Is it true that drying concentrates the nutrients?
It's true. Because the water has been removed, dried vegetables are more concentrated when compared at the same weight. However, in terms of the amount you actually eat after rehydrating, they aren't very different from fresh vegetables.
Q3: Which dried vegetables are nutritionally recommended?
Carrots, spinach, and kiriboshi daikon add color and texture and are easy to use in miso soup. Rotating them in your miso soup lets you get nutrients without getting bored.
Q4: Do dried vegetables’ nutrients decrease further with cooking?
Some is lost, but with about as much heating as a bowl of miso soup, it is hardly worth worrying about. Avoid long simmering and add it just before serving for a vivid finish.
Q5: Do commercial dried vegetables contain additives?
It depends on the product, but good-quality dried vegetables have vegetables as their only ingredient. Agriture’s dried vegetables are committed to additive-free, 100% domestic ingredients. When buying, check the ingredient label and choose ones with no additives other than vegetables.
Recommended reading
Sustainable initiatives / Commercial dried vegetables / Product lineup / 10 dried-vegetable recipes | from miso soup to side dishes, solving vegetable shortage in a hurry / A Complete Guide to the Features of Miura Daikon! Explaining the Appeal of Its Taste, Shape, and Nutrition
- A complete corporate disaster-stockpile list | Required amounts per person and selection criteria
- Types of dried vegetables | 4 drying methods and how to choose
