Much like certain supplements, antacids can cause problems for your thyroid as well. This is because many antacids include aluminum or magnesium, two minerals that may inhibit the absorption of thyroid medication. Aside from these harmful interactions, long-term antacid use can contribute to osteoporosis and potentially kidney stones, so as it is, you’re better off using them sparingly. Other dietary changes will hopefully make them less necessary, and if you take your medication by itself (as mentioned in the previous point), there should be no chance for the two to interact.
3. Cottonseed Meal
While cottonseed meal is super nutritious, it can be somewhat problematic for those with thyroid conditions due to that nutritional content. 100 grams will net you half your potassium RDA, and nearly as much vitamin B. Like soy, cottonseed meal also packs quite the protein punch. Unfortunately, also like soy, it is best to wait a while (at least 45 minutes to an hour) before eating after taking medication. This is likely due to the significant mineral content found in cottonseed meal. The levels of calcium, iron, and magnesium surpass about 50%, 70% and 190% of the RDA in 100 grams respectively.
Depending on who you ask, grapefruit has minimal interaction with thyroid medications, only slightly delaying their absorption by the body, or it has more significant, even dangerous effects. However, thyroid replacement hormones are not the only medications for which grapefruit may be ill-advised. For example, it can increase the dosage of cholesterol-lowering drugs, or decrease the dosage of allergy medication, both of which may prove harmful, or at least inconvenient. While the jury is out on grapefruit’s effects on thyroid medications, considering the numerous warnings, it’s better to be safe and cut down on grapefruit, or avoid it entirely.Related: 10 Nutritious Facts About Grapefruits
1. Cholesterol/Ulcer Medications
When you see a commercial advertisement for medication, you’ve probably noticed that they tend to mention side effects and warn viewers about mixing medication. This is because medications often cause chemical changes in the body. Two or more medications may interact with each other, even if they are being taken to deal with two separate issues. This may result in reduced effectiveness of those medications, or worse, harmful or life-threatening interactions. If you’re taking medication for other conditions, talk to your doctor about appropriate dosing and medicinal interactions, and notify your doctor if you notice any changes.