Biology Harsh Truths About Healthy Foods and What You Can Do About It  

Sky Marcano
23.3k views 12 items

This list of healthy foods includes some harsh truths that may shock you. The everyday healthy diet is supposed to give you energy, maintain a healthy BMI, and make you happy. But people rarely, if ever, talk about some of the negative health effects "healthy" foods can cause. Don't get freaked out - most of the bad stuff on this list only happens if you eat too much of it. Still, it's worth combing through. Knowledge is power, after all (at least as much power as your next spinach-kale-banana smoothie will give you). 

Spinach is listed (or ranked) 1 on the list Harsh Truths About Healthy Foods and What You Can Do About It
Photo: Daniella Segura/Flickr

Spinach is great for smoothies, salads - even pizza. It's healthy, for sure, but spinach is also high in oxalate, a compound that can cause kidney stones. So if you are prone to calcium kidney stones, consider cutting back - think twice about your next green smoothie with spinach binge. 


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Tuna is listed (or ranked) 2 on the list Harsh Truths About Healthy Foods and What You Can Do About It
Photo: via Reddit
Sushi's great, but tuna can cause major health problems if you eat too much. Too much tuna can cause mercury poisoning, which symptoms include tingling sensations and a loss of balance.  see more on Tuna
Coffee is listed (or ranked) 3 on the list Harsh Truths About Healthy Foods and What You Can Do About It
Photo: Fil.Al/Flickr
New studies have shown coffee has many health benefits - but it's not without its problems, either. Coffee can increase your heart rate and blood pressure, and cause insomnia and dehydration. Keep it to a couple cups a day, though, and you should be fine. see more on Coffee
Tomato is listed (or ranked) 4 on the list Harsh Truths About Healthy Foods and What You Can Do About It
Photo: Kurtis Garbutt/Flickr
Raw tomatoes have been known to keep cancer away, although eating too many can actually interfere with your immune system. Eat them, but not too many. see more on Tomato