There are certain dietary benefits and differences between fresh and dried fruit, as dried blueberries do, due to the drying process; of course they have the same similarities in many ways. However, the ability to act as an antioxidant is typically not one of them.
- While a serving of fresh blueberries is one cup, a serving of dried blueberries is one-fourth of a cup.
- Equal to one another in their capacity to quench free radicals
- Equal amounts of fiber can be found in both of these options.
- While one serving of fresh blueberries has only 80 calories, one serving of dried blueberries has 150 calories.
- When compared to a serving of fresh blueberries, a serving of dried blueberries contains 27 grams of sugar.
- While a serving of dried blueberries does not contain any vitamin C, the same amount of vitamin C can be found in a serving of fresh blueberries.
The impact that freezing and drying had on the levels of antioxidants present in fresh blueberries was the subject of research that was recently published in The Journal of Biomedicine and Biotechnology. 
Either the berries were frozen for around three months at a temperature of approximately four degrees Fahrenheit, or they were dried using one of two different drying techniques. At the end, when the antioxidant activity of the fresh, dried, and frozen berries was evaluated and compared, the researchers discovered that there were no significant changes between the three forms of the berries. Sugar content is where you'll see the most significant variation, according to Kristin Kirkpatrick of the Wellness Institute at the Cleveland Clinic. The sugar is concentrated during the drying process, which results in an increase in the calorie content as measured by weight. Blueberries, whether they are fresh or frozen, contain approximately 85 calories and 14 grams of sugar per one-cup serving. On the other hand, half a cup of dried blueberries contains around 270 calories and 25 grams of sugar. Ms. Kirkpatrick referred to this as a "substantial increase" in her assessment. "It makes a difference because it affects blood sugar and it impacts insulin," which means that "it has an effect on both." 
She went on to say that if you do consume dried fruit, it is recommended to limit yourself to one serving each day. Also, when using dried fruit in place of its fresh equivalent, make sure you take into account the differences in the amounts of sugar and calories. "Don't believe that you can use a one-to-one ratio," she warned, "if you're going to add some dried blueberries to your oatmeal as opposed to fresh," she added, "because you may start to gain weight and wonder, 'What the heck am I doing wrong. ' "In spite of the fact that all three types of blueberries are beneficial to one's health, there are significant distinctions between them, including the following: Calories and sugar are as follows: One cup of blueberries, whether they are fresh or frozen, has approximately 80 calories and 15 grams of sugar, whereas one cup of dried blueberries has nearly 500 calories and 100 grams of sugar. Therefore, while you may be able to consume raw blueberries in greater quantities, it is important to pay attention to the quantity that you consume when eating them in their dried form. 
Dried fruits, due to the high number of calories that they contain, might be a suitable option for athletes who are seeking a quick way to enhance their energy levels. Antioxidant content: Since the drying process can remove up to 40 or 50 percent of the antioxidants found in blueberries, this indicates that fresh and frozen blueberries contain more antioxidants than dried blueberries do. Blueberries that are heat dried and processed with an osmotic treatment (soaking the blueberries in a solution that helps them dry faster) may lose more antioxidants than those that do not get an osmotic treatment. More specifically, blueberries that are heat dried and processed with an osmotic treatment may lose more antioxidants than those that do not get an osmotic treatment. On the other hand, blueberries that are heat dried tend to lose more of their antioxidants than those that are freeze-dried. The frozen structure of the blueberry skin makes nutrients more available to the human body, making frozen blueberries the best source of antioxidants. 
On the other hand, fresh blueberries are the best source of antioxidants. Blueberries, in whatever form they may be consumed, are a good source of antioxidants. One cup of fresh blueberries, for example, may contain up to 10 times the amount of antioxidants that are considered optimal for daily consumption. Fiber: When compared to fresh blueberries, which contain three to four grams per cup, and frozen blueberries, which contain six grams per cup, dried blueberries come out on top in this category due to the fact that they contain up to twelve grams of fiber per cup. Dried blueberries are a snack that can help regulate bowel movements since they include twelve grams of fiber, which is about half of the daily fiber amount that is suggested. Additives: Blueberries that are not grown using organic methods require the use of pesticides in order to maintain their freshness. 
However, frozen blueberries are flash frozen immediately after being picked from the bush. As a result, frozen blueberries may have less pesticide residue on them, which is an advantage for people who are sensitive to or concerned about the issue. In addition, sulfur dioxide is occasionally utilized during the drying process for blueberries to produce dried blueberries. People who are allergic to sulfites or are sensitive to them may experience asthma symptoms when exposed to sulfides. If you feel uneasy about this, you should probably give the product's packaging a thorough reading before using it. To summarize the situation, fresh blueberries, dried blueberries, and frozen blueberries are all good for you, and frozen blueberries provide an additional alternative for a healthy and convenient food choice. On the other hand, the variety of blueberries that you decide to consume at any given time may be determined by the satisfaction that you seek from the food that you eat. But in their many different preparations, blueberries can be a snack with a high fiber content, an excellent source of antioxidants, a source of energy, or perhaps all three at the same time. Due to this delicious fruit's versatility, you should consider including all three forms of it in your diet, with dried fruit being consumed in moderation.