Causes of Low Thyroid Levels

August 8, 2017



One of the top questions I get asked is, "what are the causes of low thyroid levels?" Decreased thyroid function is one of the top most complaints I have seen amongst clients and thyroid issues such as Hashimotos disease have been on the rise. The thyroid glad is responsible for many functions in our body, the main one being our metabolism. Have a read below to find out some of the common causes and diet tips to help.


Symptoms of Decreased Thyroid Function:

Fatigue due to slow metabolism

Physical slowness

Mental dullness

Dry skin and hair


Recurrent infection


Causes of Low Thyroid Levels:


Nutrient deficiency

Heavy metal accumulation

Imbalance of healthy gut bacteria (dysbiosis or candida overgrowth)

Low selenium and iodine levels

Goitrogens found in cruciferous vegetables like cauliflower or broccoli 



Low stomach acid

Iron and B12 deficiency

Weight gain



If you have any of the above symptoms and think you might have decreased thyroid function, avoid soy and limit goitrogenic vegetables such as cauliflower, broccoli, brussel sprouts to 3-4 times per week and make sure they are cooked well. Look after gut health by including a good quality probiotic and fermented vegies and include sea vegetable in your diet. Incude brazil nuts for a healthy source of selenium. 


**Always consult with your doctor or nutritional professional before starting a supplement regime. Get your thyroid levels checked out with your doctor before you do any self diagnosing,


If you have any more questions on the causes of low thyroid levels, please feel free to reach out!


xo M


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