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Beef liver is an absolute nutrient bomb. Not only is it packed with protein, beef liver is also rich in vitamin A, B12, copper, iron, and choline, among many others. And when we say "rich" we really mean that it has an excessive amount of some of these micronutrients.
Too much vitamin A, for instance, can be dangerous. It can lead to an increase in intracranial pressure, which in extreme cases can lead to coma and death. Overdosing on copper is also no laughing matter, and can also lead to death. Though copper toxicity is rare to occur in healthy individuals.
In addition to making everything taste better, this spice is also very rich in antioxidants, has anti-inflammatory properties, and can help regulate blood sugar and cholesterol levels.
There are two main types of cinnamon on the market: ceylon and cassia. The latter has high amounts of coumarin, which is a chemical compound that has been linked to a number of health issues, including liver damage and increased risk of cancer.
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But albacore tuna also contains fairly high levels of mercury. Methylmercury (the type of mercury in question) is a neurotoxin that has been linked to a wide range of health issues, including coordination and hearing and speaking problems, among others.
This species of longfin tuna is very popular, especially when it comes to the canned version. Tuna is an excellent source of protein and omega-3 fatty acids, which are proven to have numerous health benefits.
Too much selenium, however, can be toxic. Excess consumption can lead to gastrointestinal and neurological issues, as well as organ damage and, in extreme cases, death.
Oysters are filter feeders, which mean they eat by filtering matter and organisms from the water. In some cases they can be rich in heavy metals, or contain harmful bacteria such as Vibrio bacteria, and even carry norovirus, which can make you really sick.
Brown rice, however, also contains inorganic arsenic. Like others on this list, the plant absorbs it from the soil, and because it's stored in the outermost layers of the grain (of which white rice is stripped of), we consume it. Of course, long exposure to arsenic is not good, and has been linked to a number of health problems, including cancer.
But spinach also contains oxalate. This chemical compound binds to minerals such as calcium and it create crystals. This means that excess consumption can increase the risk of forming kidney stones.
Chicken breast does, however, contain advanced glycation end products (known as AGEs). These form when protein and fat combine with sugar in the blood. AGEs have been linked to an acceleration in the aging process, and diseases such as Alzheimer's.
Oysters are delicious and are a great source of zinc. But while consuming too much zinc can be harmful, the greater risk of consuming raw oysters actually comes from pollutants and pathogens.
Spinach is considered a superfood for a reason. It's packed with vitamins, minerals, carotenoids, and antioxidants such as quercetin and zeaxanthin, among others.
Chicken breasts in particular are an excellent source of lean protein. Unlike other animal sources, they're low in fat and are rich in vitamins and minerals, making them a popular choice in numerous diets.
Unlike white rice, this version contains the outer bran and germ, which are naturally packed with nutrients such as fiber and manganese, among others.
But tea also contains fluoride, which is absorbed from the soil by the tea bush Camellia sinensis. And while it can be good for your teeth in small quantities, excess fluoride can cause a wide range of health concerns, including neurological problems, bone and joint pain, and reproductive issues.
But almonds also contain phytate (or phytic acid), which is known as an anti-nutrient. Phytate blocks the absorption of minerals such as zinc, iron, and calcium into the body, which may lead to imbalances. Soaking almonds in water can help remove some of the phytate.
Soy is a popular food, especially among those who follow vegan and vegetarian diets. It's a great plant-based source of protein, and its isoflavones are known to help fight a number of age-related diseases.
Although they are packed with calories, almonds are also packed with lots of protein and fiber. Not to mention vitamin E, B12, and minerals such as magnesium, phosphorous, and copper, among others.
But they also contain goitrogens, which are substances that disrupt the production of thyroid hormones. Excess consumption of goitrogens may lead to thyroid disorders. Brussels sprouts, kale, and collard greens are among the worst offenders. Boiling cruciferous vegetables, however, will greatly reduce the amount of goitrogens.
We've all heard about the benefits of eating cruciferous vegetables, right? They're rich in fiber, vitamins, minerals, antioxidants, and DNA-protecting enzymes called glucosinolates.
But soy also contains high levels of the heavy metal cadmium. Soy plants actually absorb high quantities of it from the soil and fertilizers. Chronic long-term exposure to cadmium can cause brittle bones and kidney damage. Processed soy products such as hot dogs and burgers are the main culprits.
One of the best selenium sources available, Brazil nuts are also an excellent source of healthy fats and numerous vitamins, minerals, and antioxidants.
Tea is not only comforting and delicious, but it also boasts a number of benefits. Most types of tea contain antioxidants, and green tea for instance is rich in the anti-inflammatory compound EGCG.
Adding lemon to water is a great way to make water taste more interesting, as well as adding a touch of vitamin C and other antioxidants found in lemons. Plus, it will help keep you hydrated.
So, what gives? Well, it turns out it's not great for your teeth. Citrus fruits are very acidic, and prolonged consumption can damage your teeth enamel. And if you happen to have any mouth sores, lemon will likely irritate them.
We have written about 'healthy' foods that are just junk food in disguise, but in this gallery we really are talking about foods that are generally good for you. It's safe to say that we're all familiar with the concept that too much of anything is bad for you, and healthy foods are no exception. Indeed, there are serious detrimental effects to the excessive, chronic consumption of some foods that are otherwise pretty healthy.
Click through and confirm if you're consuming too much of these foods.
Foods that are healthy but can be harmful in excess
Are you eating too much of these?
HEALTH Food
We have written about 'healthy' foods that are just junk food in disguise, but in this gallery we really are talking about foods that are generally good for you. It's safe to say that we're all familiar with the concept that too much of anything is bad for you, and healthy foods are no exception. Indeed, there are serious detrimental effects to the excessive, chronic consumption of some foods that are otherwise pretty healthy.
Click through and confirm if you're consuming too much of these foods.