Wellness doesn’t have to mean deprivation—and sometimes, it even includes chocolate. A fascinating Harvard study followed the chocolate-eating habits of more than 31,000 Swedish women and found something encouraging: those who enjoyed one to two servings of high-quality chocolate each week had a 32% lower risk of developing heart failure. Even women who indulged just one to three times per month saw a 26% lower risk. It’s a powerful reminder that mindful enjoyment of the right foods can actually support heart health, not sabotage it.
Not bad, huh?!?
As encouraging as these findings are, this study also highlights an important coaching principle I share often: more isn’t always better. The heart-protective benefits of chocolate showed up only at modest amounts—and disappeared when intake increased.
Here’s how the results broke down:
- 20–30 grams of chocolate per month was linked to a reduced risk of heart failure
- One to two servings per week showed no added benefit
- Three to six servings per week was associated with a 23% increased risk of heart failure
As the study’s senior author, Dr. Murray Mittleman, explained, the protective effect appeared only with relatively small amounts of chocolate. Once intake climbed, the benefit was lost—and at higher levels, it may have even worked against heart health.
That said, the research around chocolate and cardiovascular health isn’t entirely one-sided. Earlier in the year, the largest study to examine chocolate intake and cardiovascular disease found a protective effect at higher—but still controlled—amounts. Participants who consumed about 7.5 grams per day (roughly one small square) experienced a 39% lower risk of heart attack and stroke compared to those who ate little to no chocolate.
It’s also worth noting that while several studies have shown high-cocoa chocolate can help lower blood pressure, the Harvard research was the first to specifically examine chocolate’s relationship to heart failure, a condition where the heart struggles to pump enough blood to meet the body’s needs.
One reason cocoa may support heart health comes down to its natural plant compounds, known as flavanols. These compounds help regulate nitric oxide, a molecule that plays a critical role in healthy blood flow and balanced blood pressure. In fact, an Italian study found that dark chocolate lowered blood pressure, likely because flavanol-rich cocoa supports the body’s ability to produce nitric oxide.
So what’s the takeaway from a coaching perspective?
Enjoy chocolate—but do it mindfully.
- Choose dark chocolate with a high cocoa content
- Look for at least 70% cocoa, which provides beneficial flavanols without overwhelming bitterness
- Stick to one square a day—or even every other day until research becomes clearer on the “perfect” dose
When chosen well and enjoyed in moderation, chocolate can be part of a heart-supportive lifestyle—not a guilty indulgence.
So, go ahead…enjoy some healthy chocolate 🍫, this weekend or whenever you’d like!