If you follow the latest health trends, you know that kale is viewed as a superfood vegetable that everyone should eat daily. So why would I even say that kale is not so good for you? Well, here is the thing, kale is actually super-poisoning.
Kale is Full of Toxic Heavy Metals
Did you know that kale is hiding a nasty secret? It contains dangerous levels of heavy metals. Kale accumulates thallium. Thallium is more toxic than lead, mercury, cadmium, or arsenic. In fact, thallium can damage the mitochondria of cells. Three pilot studies, performed in 2014 and 2015, tested samples of fresh vegetables in California for toxic heavy metals. The analyses of both organic and non-organic samples found 6 of 25 foods tested high in thallium, the majority of which were found in kale.
Kale Contains Anti-Nutrients
Kale Contains thyroid inhibitors known as Goitrogens.
Goitrogens are substances that suppress the function of the thyroid gland by interfering with iodine uptake. Goitrogens act by inhibiting iodine metabolism which is needed in the formation of thyroid hormones. Thus, eating kale can suppress your thyroid’s hormone production which can lead to fatigue, coldness in your body and a sluggish metabolism. (source)
Why Do I Still Have Thyroid Symptoms?: When My Lab Tests Are Normal
Plant toxins and anti-nutrients are usually the cause of headaches, asthma, joint pain, allergies, digestive issues, and various autoimmune diseases.
References:
Role of oxalic acid overexcretion
Production of Oxalic Acid by a Wood-Rotting Fungus
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