15 foods not to eat with iron supplements

Do you know what foods you should not eat with iron supplements? Iron is a very important nutrient and plays a very good role in the blood that makes up our body. Insufficiency may cause metabolic problems. Women, in particular, face an iron deficiency every month. So, it is recommended to consume it regularly.

Even with these good iron supplements, there are nutritional supplements or foods that are not good to eat together. Wouldn’t it be better to avoid foods that are not compatible with each other? So, I’m trying to find out which foods are not very helpful when taken with iron supplements.

iron properties

Iron is a nutrient that does not accumulate in the body. So even if you continue to eat steadily, you will use as much ingredients as you need and the rest will be discharged out of the body. So, it is important to consume it regularly. This is because even if you supplement a lot temporarily, it is difficult to sustain.

Symptoms of iron deficiency

The most common symptom of iron deficiency is anemia. In order to prevent deficiency anemia, iron intake is very important and is a basic nutrient to be consumed.

(Look at teas that are good for anemia)


Foods not to eat with iron supplements

Iron supplements themselves are very important and good nutritional components. However, if you eat with iron, there are foods that reduce iron absorption and interfere with it. Even if you make up a nutritional supplement, it is recommended to take iron supplements separately. And foods high in caffeine are not good either. Let’s take a look at some foods and nutrients.

Comprehensive nutritional supplement

Most nutritional supplements are said to be good to eat evenly. So, you must be taking a lot of multivitamin supplements. If you are taking a multivitamin, it is very important to space your intake at different times.

vitamin D

It is recommended to take vitamin D to absorb the nutrients of calcium well. There is one problem here. Taking these two together means that too much calcium is absorbed. So it is very important to stick to the prescribed dosage. To prevent hypercalcemia, consider taking them together.

calcium supplement

It seems to be similar among the nutrients that are good for bone health, but each other’s nutrients are calcium. Calcium, which has a different property from iron, is absorbed in the body in a similar way when it enters the body. Since it uses the same passage, the amount that can be absorbed is fixed, so it is one of the foods that should not be eaten together with iron supplements that cause poor absorption.

(Note: Calcium Magnesium Rich Foods)


It is also not good to consume too much magnesium along with calcium. They interfere with each other’s absorption rate, so it’s not rewarding to eat them on purpose.


Zinc is also a nutritional component with poor absorption of iron when taken together with magnesium.


Nutrients or foods containing tannins may not be compatible. It is a food ingredient that should not be taken together with iron supplements because tannins reduce the absorption of iron.

acne treatment

Antibiotics have very strong medicinal properties. Antibiotics are also common acne medications. Antibiotics are also used for cases such as pneumonia and cholera. Keep in mind that the antibiotics and iron used to treat these diseases do not work well together.

(See foods that are bad for inflammation) 


Restless Legs Syndrome Treatment

Restless Legs Syndrome is a disease that modern people easily suffer from. Especially after middle age, it is easier to get sick and take a lot of medicine. If you are taking medicine for this disease, it is a good way to take iron supplements and take them two or three hours apart.

Parkinson’s disease treatment

Drugs used to treat Parkinson’s disease contain ingredients that can halve the effect of iron, so taking them together is not very effective. 


Coffee is very high in caffeine. So, if you need to drink coffee and also take iron supplements, if you need to consider the absorption rate of iron, it is helpful to drink decaffeinated coffee. Even if it is a food that should not be eaten with iron supplements, modern people will not be able to quit coffee.


black tea

Black tea contains a lot of caffeine. In addition to that, it contains tannins that give it an astringent taste, which reduces the absorption rate of iron.

green tea

Green tea is also a beverage high in caffeine. As such, caffeine drinks such as green tea, along with coffee and black tea mentioned above, are all foods that interfere with the absorption rate of iron. 

energy drink

Energy drinks are usually beverages designed to quickly hydrate the body. High in calories and high in sugar, this drink contains quite a bit of caffeine. Even if it’s not listed as caffeine, it’s probably packed with other ingredients. It is not a good idea to mix iron supplements with drinks such as Red Bull, Hot Six or Monster.

stomach medicine

When iron is ingested, it is broken down and absorbed in the stomach. However, in the case of stomach medicine, it acts to inhibit the secretion of stomach acid, which can prevent this absorption. When iron is combined with acid, the effect is excellent, but taking gastrointestinal medicine is inevitably less effective. When gastric juice is diluted, the efficacy of iron supplements is also diluted.


Milk also acts as a stomach medicine. So, if you are drinking milk, please wait a while before taking it. Drinking milk and going through the process of secreting gastric juice very actively over time. Taking iron supplements at this time results in a very rapid increase in absorption rate. It was selected as a food that should not be eaten together with iron supplements, but milk is recommended as a very good nutritional food unless consumed with iron.

Recommendations for iron intake

Iron is a very important nutrient to skip just because there are things that are not good to eat together. So, it is very important to eat right and on time if possible. So when is the best way to eat it? And what kind of food do you eat with it? Let’s take a look.

on an empty stomach

Calcium is also best consumed on an empty stomach. There are ways to wake up in the morning and eat early. Or, it is important to eat after the food has been digested to some extent between meals and meals.


1 hour before meal

If you plan to eat, it is recommended to take calcium supplements 1 hour before meal time. This provides a good absorption rate along with the nutrients you get from your meals. Watch to stay away from foods you shouldn’t eat, such as iron supplements.


2 hours after meal

If, as mentioned above, you forgot to eat or skipped an hour before mealtime, don’t worry. It is okay to have it after a meal. At this time, if 2 hours have elapsed after finishing a meal, taking calcium supplements is very effective in absorbing nutrients properly.


Orange juice

Calcium is very compatible with acidic foods. So, if you are taking calcium supplements instead of water, it is helpful to drink a healthy juice such as orange juice together. I would like to reiterate the above point that no coffee or energy drinks are allowed.


with vitamin C

Vitamin C is one of the best nutritional supplements and nutrients. A vitamin C drink can also be a good substitute, such as orange juice.



Above, we looked at foods that should not be eaten with iron supplements. Listing many things will make you wonder if there are too many. If you look closely, you can broadly divide them into categories. These include foods high in caffeine, mineral nutrients, and antibiotics or drugs with special therapeutic purposes. I think it would be good to make this distinction. The best way is to take iron on an empty stomach. Then, take care of iron supplements, which are important for health, and hope you always have a lively day.

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