Health knowledge made personal
Healthy Eating Community
Join this community!
› Share page:
+ Add Blog to My Feeds
› View Profile
› Send a message
› Write on Whiteboard
More from this Member
You Ask, I Answer: Fiber
In The News: Adolescent Nutrition (And Small Bites!)
You Ask, I Answer: Exercise, Whey Protein
You Ask, I Answer: Casein
Speaking With...: Janet Charlton
» View All
You Ask, I Answer: Fruit & Vegetable Ripeness/Vitamin & Mineral Content
Posted Aug 25 2008 6:55pm
Does the nutrition of a fruit or vegetable depend on how ripe it is?
-- Claire Snyder
An apparently simple question with a semi-complex answer.
Some fruits and vegetables offer different nutrition profiles depending on what stage of ripeness they are at.
Sun-ripened vine tomatoes, for example, are ideal because
they produce plenty of antioxidants and polyphenols while fully ripening, thanks to the sun's rays
Conventional tomatoes, however, are picked when they are still green. Days later, they arrive at your supermarket.
In between being picked and going up for sale, they (as well as avocados, pineapples, and apples, among other fruits) are
sprayed with ethylene, a plant hormone that speeds up the ripening process.
It's not so much that ethylene is harmful as much as
this artificial ripening process does not allow the fruit to provide as much nutrition as it could
Some of the chemical processes that occur as a result of exposure to ultraviolet light do not take place. In turn, some enzymes are not present in that tomato.
By the way, this is why often times a great-looking tomato is tasteless.
Some of the enzymes a tomato produces as a result of exposure to the sun greatly affect its taste!
This is one big reason why buying local and sesonal produce is recommended.
Not only is it an easier load on the environment,
it also increases your chances of buying produce that has been ripened by nature, in turn providing more nutrition
This is not to say conventional tomatoes are "unhealthy" or "bad for you." However, you are definitely sacrificing some nutrition for convenience.
Assuming you are eating naturally ripened food, though,
once it's okay for consumption
(its texture and taste are palatable)
, its nutritional profile stays the same for a few days.
Tuesday's ripened banana will offer the same amount of potassium, Vitamin C, and Vitamin B6 on Thursday.
Before any glycemic index fans jump down my throat:
yes, the glycemic index of that banana increases slightly as it ripens, but not significantly.
Post a comment
Write a comment:
Cancer Stages, Treatments, and offsetting Side Effects
Your Breast Cancer is Stage Now
kidney cancer stage d or c
Less Invasive Lung Cancer Staging Looks Promising
Breast Cancer: Stage 4 - A Hope to Cure with the Advanced Technology!
Selenium, From Toxin to Essential Mineral by Jeffrey Dach MD
First laparoscopic ovarian cancer staging procedure performed at Northwest Hospital in Baltimore
Algorithms to Predict Breast Cancer Stage
Previstage GCC Colon Cancer Staging Test
About Health Mavens
banana nutritional content
quinoa nutritional content
b complex vitamins
vegetarian lunch recipes
foods rich in protein
negative calorie food myth
negative effects of eating fast food
the ab diet
Video Health Stories
Advertise With Us
See all the
latest blog posts.
Salmonella Nutrition Bars
Children Staph Infection
How to Reduce LDL
Life Expectancy Emphysema
Itchy Swollen Eyelids
Bone Density Medications
Causes of Swelling
Pregnancy Brown Discharge
Sore Neck Glands
Itchy Rash on Arms
Itchy Throat Cough
Pinched Nerve Neck Symptoms
Burning Sensation During Urination
Blood Clots During Period
Swollen Lymph Node Armpit
Causes of Lump
Causes of Itching
Swollen Lymph Nodes Groin
Signs of Pregnancy Before Missed Period
Causes of Rash
Coughing Up Phlegm
Enlarged Groin Lymph Nodes
Early Pregnancy Brown Discharge
Gillian Barre Syndrome
Sore Throat Body Aches
Symptoms of Swelling
Side Effects of Flu Shot
Find a Counselor
Wellsphere does not provide medical advice, diagnosis or treatment.
See additional information.
Copyright © 2014 Remedy Health Media, LLC. All Rights Reserved.