These studies prove the importance of balanced nutrition year round, not just during swimsuit season!
Zinc and selenium improve thyroid function
Zinc and selenium help the body produce thyroid hormone, and doctors wanted to see if taking supplements would help women with low thyroid function, or hypothyroidism, where the metabolism slows, leading to weight gain and fatigue.
In this study, 68 overweight or obese women with hypothyroidism took 30 mg of zinc gluconate, alone or with 200 mcg of selenium yeast, per day, or a placebo. After 12 weeks, while there were no changes for placebo, both the zinc and zinc/selenium groups saw improvements in the two thyroid hormones that help regulate the rate of energy the body uses.
Doctors said the findings suggest zinc alone or with selenium has a beneficial effect on thyroid function in overweight or obese women with hypothyroidism.
Vitamin K1 improves insulin sensitivity, blood sugar control
Doctors wanted to test the effects of vitamin K1 (phylloquinone) on blood sugar metabolism and insulin sensitivity in pre-diabetic women. In this study, 82 pre-diabetic, premenopausal women took 1,000 mcg of vitamin K1 per day or a placebo.
After four weeks, the hormones that regulate insulin sensitivity and blood sugar control had improved much more in the vitamin K1 group than for placebo, and two hours after eating, insulin and blood sugar levels had increased for placebo while declining for those who took vitamin K1.
Discussing the findings, doctors said taking vitamin K1 for four weeks had beneficial effects on glycemic status and insulin sensitivity in pre-diabetic and premenopausal women.
Reference: Journal of the American College of Nutrition; March, 2015, Published Online
Betsy’s Note: K1 is contraindicated with blood thinners. Zinc and selenium also thin blood. Also, too much zinc and/or selenium can actually have the opposite effect you are hoping for, so stick to label or healthcare professional instructions. Finally, it’s important to maintain the proper zinc to copper ratio, especially when supplementing. This article is intended for educational purposes only. It is not meant to diagnose, treat, prevent or cure any disease. Consult your healthcare provider.
Article copyright 2015 by Natural Insights for Well Being. All rights reserved. Used with permission.