Most common fruits, vegetables and herbs in the diet that contain antioxidants include forms like vitamin E, lutein, vitamin C, beta-carotene, flavonoids and lycopene. While there is currently no official recommended daily allowance for antioxidants or antioxidant foods, generally speaking the more you consume each day from real foods in your diet the better.
When we’re under stress, our bodies immediately kick into fight-or-flight mode, releasing large amounts of hormones. Surprisingly, the body has the same chemical response when blood sugar is low. After you eat a sweet snack, stress hormones begin to compensate for the crash by raising your blood sugar. The result? Unexplained anxiousness, irritability, and even shakiness.
As demonstrated in the present study, the variation in the antioxidant values of otherwise comparable products is large. Like the content of any food component, antioxidant values will differ for a wide array of reasons, such as growing conditions, seasonal changes and genetically different cultivars [46,58], storage conditions [59-61] and differences in manufacturing procedures and processing [62-64]. Differences in unprocessed and processed plant food samples are also seen in our study where processed berry products like jam and syrup have approximately half the antioxidant capacity of fresh berries. On the other hand, processing may also enhance a foods potential as a good antioxidant source by increasing the amount of antioxidants released from the food matrix which otherwise would be less or not at all available for absorption . Processing of tomato is one such example where lycopene from heat-processed tomato sauce is more bioavailable than unprocessed tomato . The large variations in antioxidant capacity observed in the present study emphasize the importance of using a comprehensive antioxidant database combined with a detailed system for food registration in clinical and epidemiological studies.
You’ve heard about the benefits of antioxidants, and thanks to our antioxidant guide, you’ve learned about what they are and what they do for your body and mind. But which fruits and vegetables are the best sources? Here are the 10 fruits and vegetables that are the top sources of antioxidants. All of them are healthy. All of them are delicious. Best of all, they all make great additions to smoothies!
One of the components found in dark chocolate is theobromine. Theobromine is structurally quite similar to caffeine, its sister chemical. Theobromine, when consumed in larger amounts, can cause a dip in blood pressure, excitability and give energy. This energy can be followed by a crash, leading some critics to tout chocolate as a dangerous addictive substance.
The research is piling up that soda is bad for your brain, as are other added sugars. An animal study from Oregon State University found that a high-sugar diet led to cognitive impairments, including memory problems. And a UK study recently found the “tipping point” at which blood sugar negatively affects the progression of Alzheimer’s. “Excess sugar is well known to be bad for us when it comes to diabetes and obesity, but this potential link with Alzheimer’s disease is yet another reason that we should be controlling our sugar intake in our diets,” study author Dr. Omar Kassaar of the University of Bath said in a press release.
When certain types of oxygen molecules are allowed to travel freely in the body, they cause what’s known as oxidative damage, which is the formation of free radicals. When antioxidant levels in the body are lower than that of free radicals — due to poor nutrition, toxin exposure or other factors — oxidation wreaks havoc in the body. The effect? Accelerated aging, damaged or mutated cells, broken-down tissue, the activation of harmful genes within DNA, and an overloaded immune system.
A recent study published in Hypertension showed that performance on cognitive tests significantly improved in elderly individuals with mild cognitive impairment if they consumed a daily cocoa drink containing high levels of flavanols for eight weeks, compared to those who consumed a low-flavanol cocoa drink. (Flavonols are a member of the polyphenol family—compounds found in natural plant food sources that have antioxidant properties.) Because dark chocolate contains more cocoa solids than other types of chocolate, it naturally contains more flavanols.
As I’m writing this article, there are already 75 scientific articles looking at dark chocolate and blood pressure. A study published in 2015 compared type 2 diabetics’ consumption of white chocolate versus high-cocoa, polyphenol-rich dark chocolate. The subjects consumed 25 grams (a little under one ounce) of dark or white chocolate for eight weeks. The researchers found that not only did dark chocolate lower the blood pressure of the hypertensive diabetics, but it also decreased fasting blood sugar. (10)
There is increasing evidence that antioxidants are more effective when obtained from whole foods, rather than isolated from a food and presented in tablet form – and some supplements can actually increase cancer risk. For instance, vitamin A (beta-carotene) has been associated with a reduced risk of certain cancers, but an increase in others, such as lung cancer in smokers, if vitamin A is purified from foodstuffs.
The research included information that animal studies have found the hippocampus, which is an area in the brain associated with memory, may be affected by refined sugar. Two studies were conducted in the published report. In the first study, participants that self-reported eating a high-sugar diet had poorer performance on hippocampal related memory tasks. In the second study, the results were replicated. The second study also revealed that the effect of high sugar consumption on memory appears to be directly related to the hippocampal region and no other areas which may also affect memory, such as the prefrontal cortex.
A study published in International Journal of Cardiology had subjects either consume a daily dose of flavonoid-rich dark chocolate or non-flavonoid white chocolate for two weeks. The results showed that flavonoid-rich dark chocolate intake significantly improved heart circulation in healthy adults. On the other hand, white chocolate with zero flavonoids to brag about had no positive health effects on the subjects. (6)
It’s important to maintain the balance between antioxidants and oxidants in the body for good health. However, the free radicals or oxidants usually outnumber the antioxidants naturally produced in the body. Therefore, it is important to have a continuous supply of antioxidants from an external source to maintain this balance. Your diet is this external source and it must be packed with good quality antioxidants. This, in turn, provides other benefits like slowing down the signs of ageing, making your skin look youthful and lowering the risk of heart disease. A diet rich in antioxidants is also known to keep your brain active and your gut healthy. Needless to say, all these factors help in improving the quality and length of your life.Here are seven antioxidant rich foods that you must eat regularly and add to your daily diet if you haven’t already:
By now you may have heard about antioxidants – in food articles, from health experts or on nutrition labels. You’ve been told to eat foods that are good for your stomach and those that protect your heart but what about replenishing the cells that make up these critical organs in our body? The buzzword is antioxidants. Let’s begin by understanding some basics.
But these benefits could have an even bigger impact: Flavonoids foundin dark chocolate may someday be useful in potentially treating neurodegenerative diseases such as Alzheimer’s. One study in the Journal of Alzheimer’s Disease found an association between eating chocolate and reduced risk of cognitive decline, perhaps due to protective effects of the cocoa flavanols.