I wasn’t always the chocolate-obsessed woman you see before
you today. In my youth, I would invariably choose a fruit pie over chocolate. I
even wondered what the hoo-ha was about chocolate. Then menopause hit me with a
tsunami of chocolate lust. I have never looked back. Dark chocolate (at least
70% cacao) is the most important meal of my day.
Happily, dark chocolate has miraculous health benefits,
which I am about to share with you; but before that, some key qualifiers.
First, let’s be clear that when I say dark chocolate I mean good quality,
organic, at least 70% cacao (the darker
the better) chocolate. Second, to gain the health benefits of chocolate,
you should limit consumption to no more than an ounce a day. The lower the
sugar content the better, and don’t buy chocolate made with milk. Buy organic chocolate only. Commercial
chocolate not only contains toxic substances, but it does not contain cocoa
sourced from sustainable farming that provides for the preservation of the land
and a fair livelihood for the farmers. Inorganic chocolate = exploitation.
That said, why is dark chocolate good for your health?
The sugar added to chocolate masks cocoa’s inherently bitter
taste, and bitter foods (like kale and arugula) are super-strong antioxidants. Many of the health benefits of dark chocolate stem from the antioxidant flavonoids it contains. Chocolate comes from the cacao plant, which is extraordinarily rich in flavanols, a type of phytochemical that is a powerful antioxidant and a terrific anti-inflammatory. Two of the main causes for disease and aging are oxidation and inflammation. Oxidation, the result of oxidative stress, has many instigators, including toxins in the environment as well as the toxic load we carry from stress, anxiety, and depression. Chocolate is high in certain flavanols,
which are also found in green tea, apples, grapes, and berries. Dark chocolate
keeps good company. Let’s look at some specifics.
Dark
chocolate has a positive impact on our neurotransmitters that regulate mood and
sleep. It’s not surprising that dark chocolate improves sleep, since it
contains a large amount of magnesium, a mineral that increases the body’s
ability to engage in restorative sleep. However, the caffeine in chocolate may
keep some people awake. I can’t eat chocolate any later in the day than 1:00 PM
or it keeps me awake at night. That’s a good thing for me since it prevents me
from eating more than a few squares of dark chocolate a day.
Dark chocolate protects against heart disease, lowering the
risk for heart attack and stroke. It releases a chemical messenger (nitric
oxide) that improves arterial blood flow, increases arterial dilation, and
reduces platelet clumping. It is important to know that the casein in milk
prevents the absorption of dark chocolate’s flavanols. This is why you should
not eat chocolate with milk in it or eat chocolate alongside milk. Dark
chocolate also protects the heart because of the way it is digested, which will
be discussed below.
Dark chocolate lowers blood pressure, according to a recent
study conducted in Italy. Study participants ate three ounces of dark chocolate
daily. A control group of similarly healthy people ate the same amount of white
chocolate. Dark chocolate contains flavanols and white chocolate does not. The
people who ate the dark chocolate had a significantly lower systolic blood
pressure reading after fifteen days of eating the chocolate.
Dark
chocolate decreases insulin resistance, a critical risk factor for Type II
diabetes. Cocoa improves insulin sensitivity according to research published in
Endocrine Abstracts (Farhat, 2014).
Dark chocolate improved insulin sensitivity even in people who did not have
diabetes. The study concluded that eating a little dark chocolate every day
might significantly contribute to the delay or prevention of the onset of
diabetes in pre-diabetics. Furthermore, researchers (Mellor, Sathyapalan, Kilpatrick, Beckett, and Atkin, 2010)
discovered that one ounce daily of dark chocolate improved the arterial health
of diabetics by increasing HDL (“good cholesterol”), without affecting weight,
insulin resistance, glycemic control, or inflammatory markers. Furthermore, in
another study, researchers (Yasuda, Natsume, Osakabe, Kawahata, and Koga, 2011)
found that dark chocolate consumption lowered LDL (“bad cholesterol”).
Dark
chocolate improves mood and reduces depression. People suffering from depression often crave chocolate, and for
good reason. The impact that the flavanols in dark chocolate have on
neurotransmitters (e.g., serotonin) can make us feel better and more positive. Evidence-based
research shows that dark chocolate decreases depression (Bunce, 2007). It
creates the amino acid tyrosine, which is a precursor to a chemical cascade
that results in feelings of euphoria (Ross, 2002).
Dark chocolate is helpful for people with chronic fatigue
syndrome. In a small
study in England, 1½ ounces of 85% cocoa dark chocolate was given to a group of
participants with chronic fatigue syndrome every day for eight weeks. Participants
reported feeling less fatigued after eating the chocolate.
Dark
chocolate can alleviate the discomfort of PMS. It releases calming endorphins
that reduce anxiety. The high magnesium content can lift mood, reduce water
retention, and reduce cramping.
Dark
chocolate improves the ecology of our digestive tract and contributes to a
strong immune system. Dark chocolate is loaded with fiber and is therefore
largely indigestible. Undigested cocoa fiber ferments in the gut and releases substances that feed beneficial gut microbes, including probiotics (e.g., lactobacillus, which is also found in yogurt). The numbers of beneficial probiotics increase in the gut after the introduction of cocoa; while undesirable microbes, like staphylococcus, decline in the presence of cocoa fiber. (Reynolds, 2014). Coming down with a cold? Eat dark chocolate! You have to love this.
The dynamics of how the
digestive tract processes cocoa
is fascinating and has a larger impact than simply building the immune system.
Dark chocolate is good for your heart because of that fermentation of cocoa
fiber by gut bacteria, creating anti-inflammatory compounds that improve blood
vessel function. Researcher Katherine Harmon Courage writes (March 2014) that research
suggests that beneficial bacteria that reside toward the end of our digestive
tract ferment both the antioxidants and the fiber in cocoa. These microbes
create the anti-inflammatory compounds that are linked to the ways in which
dark chocolate benefits cardiovascular health. Magic. OK, science. But isn’t science magical?
Eating a little dark chocolate every day may improve thought processes of people with mild cognitive impairment, according to a study in Neurology Journal (Aug. 2013). Dark chocolate has been shown to keep the aging brain sharp, warding off dementia, by increasing blood flow to the brain. Moreover, its antioxidant and
anti-inflammatory properties are virtually unmatched for enhancing cognition
for people of all ages and in all stages of health.
Forget the cod liver oil, I'm bringing home the dark chocolate. But before we get carried away (oh yeah, dark chocolate causes euphoria), remember the rules about eating chocolate: 1) at least 70% cacao (the darker the better), 2) no milk in it or with it, 3) 100% organic (made with an organic sweetener too), 4) the less sugar in it the better, 5) eat in moderation (about an ounce a day). I play by the rules and I savor my daily dose. Me and my good-quality dark chocolate, we're going to live to be a hundred together, sharp as ever, blogging onward. Yum.