7 Side Effects of Green Smoothies

1. Kidney Stones

Green smoothies are rich in oxalic acid, which causes the formation of calcium oxalate stones in the kidneys.

2. Stomach problems

Green smoothies contain thallium and a lot of fiber, which may cause stomach pain, diarrhea, nausea, and vomiting.

3. Thyroid problems 

Green smoothies contain goitrogens, often present in cruciferous vegetables like cabbage. Goitrogens disrupt iodine uptake and thyroid function.

4. Food poisoning

Green smoothies may cause food poisoning if smoothie ingredients are contaminated with harmful bacteria, parasites, or viruses.

5. Nutritional deficiencies 

Exclusively taking smoothie diet for a prolonged period may  lead to vitamin D and vitamin B12 deficiencies. 

6. Weight gain

Some green smoothie ingredients are rich in sugars, calories, and fats. Failing to watch your smoothie diet may cause weight gain. 

7. Allergies 

Green smoothies may also cause allergies. For instance, some people may develop allergic reactions to cabbage, cucumber, and celery.