Thyroid UK
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Starflower oil

Hi, does anyone take this with underactive thyroid? Is it something that would affect Levo or would it be okay to take on night time? I did use to take this years ago for PMT but stopped it and thought would give it another go as it really helped. I'm little scared to take any vitamins just in case it stops my Levo working or it affects B12 injections. I do know I am okay for iron and vit C as currently having to take those per doctor and leaving 4 hrs before taking iron tablet as advised.

2 Replies

Hi Tracy

Can't find info under Starflower, but have found some conflicting stuff under 'Borage'....

Omega-3 and -6 Oils (PUFA or polyunsaturated fatty acids, called Essential Fatty Acids

All liquid oils are PUFA except extra virgin olive oil are toxic and can cause hypothyroidism, suppress the immune system, are implicated in heart disease, cancer, diabetes, seizures, cysts, age spots and poor digestion. This includes all oils that are liquid at room temperature except extra virgin olive oil. The list includes all seed, nut, bean, grain and fish oils, such as flaxseed, soybean, safflower, canola, fish, sesame, walnut, hemp, corn, Evening Primrose, Borage, black current etc. oils. Beta-carotene (as a supplement or in carrot juice) and lecithin are also PUFAs. Vegetable juice, green juices and their powders, nuts and beans (except green) and grains (especially wheat, rye and barley) are high in PUFA. Safest grains are oats, rice and corn (but not everyone can tolerate even these older grains). Recommended oils: coconut oil (the healthiest), extra virgin olive oil and butter. (Ref. Coconut Oil, Why It Is Good For You – free on website plus refs and links).

See To Your Health - July 2005

Unsaturated Fats

Articles by Dr. Ray Peat at

The thyroid, under control of the hypothalamus which secretes thyroid-stimulating hormone (TSH), produces the hormones thyroxine (T4) and triiodothyronine (T3). T3, the active version of thyroid hormone, is responsible for fat-burning and other metabolism-stimulating effects. Seleniuim has a very important function in helping enzymes in the body convert T4 to T3. Other key nutrients for thyroid support are CoQ10, EGCG, B complex, Magnesium, Zinc, Iodine, NT Factor, Ribose, Coconut oil, Super CLA, Borage oil and Orthomega, along with a good multivitamin and mineral supplement such as Foundation Formula.

I cannot vouch for the information on either site....

If you google borage oil and hypothyroidism, there's actually loads more info supporting taking it than arguing against....




Hi Louise, thank you for this. I shall have a good search of it then before deciding to take it. x


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