Micronutrients & recovery
Dietary iodine intake is primarily derived from dairy products in Canadian adults, and public health policies promoting salt restriction and reduced dairy consumption may inadvertently increase the risk of iodine deficiency.
If you are following a low-sodium diet for blood pressure, be aware that you might be consuming less iodine. Dairy products are a major source of iodine in the Canadian diet. Ensure you are getting enough iodine through other sources like fish, eggs, or supplements if you significantly cut back on dairy and salted foods.
Self-reported intake of dairy products was most strongly associated with iodine status (r = 0.24; p = 2.38 × 10−9) after excluding for iodine supplementation and T4 use... Recent public health policies that advocate for salt restriction and lower dairy intake may inadvertently reduce iodine nutrition of Canadians, and further exacerbate regional variations in iodine deficiency risk.
Why this rating
Large cross-sectional study (n=800) with robust 24h urine analysis, though observational design limits causal inference.
Source
The Prevalence and Risk Factors Associated with Iodine Deficiency in Canadian Adults
Stellena Mathiaparanam et al. · Nutrients · 2022
DOI 10.3390/nu14132570
More from this paper
- Smoking and consumption of goitrogenic foods (specifically cruciferous vegetables and processed meats) increase urinary levels of thiocyanate and nitrate, which act as competitive inhibitors of iodine uptake, thereby increasing the risk of iodine deficiency.Good
- Regional variations in iodine status exist in Canada, with residents of Quebec City and Vancouver having significantly lower iodine status compared to those in Hamilton and Ottawa, driven by differences in dietary habits and environmental exposure to inhibitors.Good
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