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Fresh fruit versus frozen–which is better?

Are there published studies providing evidence about the efficacy of frozen fruit (vs fresh)? What are viable sources of acai in the US? Sambozan adds soy lecitihin to their acai product.

evanbrand / Originally posted on  Pink juice with green foam

Answer:

I found two good studies comparing fresh to frozen fruit. One on strawberries and one on raspberries. They both found the same thing: “no statistically significant differences between the…[antioxidant levels] for fresh and frozen strawberries” and “It is concluded, therefore, that freshly picked, fresh commercial, and frozen raspberries all contain similar levels of phytochemicals and antioxidants per serving.”

In fact, frozen last longer than fresh, are available year-round, and tend to be cheaper and more convenient. If you look in my freezer, normally it’s half frozen greens and half frozen berries (though this time of the year it’s also stuffed with 20 pounds of fresh dates!).

In terms of your acai question, I’m not sure what your concern about soy lecithin is. Even people with soy allergies are often able to tolerate lecithin (and soy proteins are more than 100 times less allergenic than other allergens such as eggs and dairy). I love the frozen packs of unsweetened acai pulp (featured in my videos Superfood Bargains and Antioxidant Content of 300 Foods), though if you’re extremely allergic to soy you may just have to stick to less exotic berries. See my video Best Berries.

Image Credit: Busy Mom / Wikimedia commons

Dr. Michael Greger

About Michael Greger M.D.

Michael Greger, M.D., is a physician, author, and internationally recognized professional speaker on a number of important public health issues. Dr. Greger has lectured at the Conference on World Affairs, the National Institutes of Health, and the International Bird Flu Summit, testified before Congress, appeared on The Dr. Oz Show and The Colbert Report, and was invited as an expert witness in defense of Oprah Winfrey at the infamous "meat defamation" trial. Currently Dr. Greger proudly serves as the Director of Public Health and Animal Agriculture at the Humane Society of the United States.

View all videos by Michael Greger M.D.

  • Hunniliz

    What’s your method for freezing greens.

    • LentilLover

      A freezer? lol

  • Chan Ngo

    I’ve just wondered if the pesticide concentration is the same or different between the two – fresh fruit vs frozen.

  • beccadoggie10

    Juicing vegetables or fruits can result in abundant amounts of pesticides in the juice IF you don’t grow or purchase (certified) organic. But, freezing the veggies or fruit should not matter.

  • Tina

    Can diet help with PAH(pulmonary artery hypertension)? Do you know of any natural treatments? Thank-you! Tina

  • bereniceweber

    @beccadoggie10 thank you for the blanching times, I live in San Diego, California, so I have to problem getting fresh fruits and veggies all year-round, yet I love blanching veggies, but I am not always sure about the times. I also find hard to find organic blueberries, and blackberries in near-by grocery stores, unless they are frozen, I am thankful for this post Dr. Greger, as for many others. Your website has literally saved my life, thank you!

  • Vlad

    Dr Greger,

    I came across the study where was said that non organic berries have high level of pesticides and herbicides, sounded that it is not worth to consume non organic berries .

    How unsafe are non organic berries

    Also wanted to hear your opinion on GMO produce

    Thank you

    Vlad

  • Strawberry Racist

    I fucking hate STRAWBERRIES!!!!!!!!!

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