Nutritionist warns: The combination of 5 major health products can easily affect absorption, so it is recommended to stagger the intake

2026/09/16 07:19

Nutritionist Zhang Xinfang pointed out that the ingredients of different health products may interact, thereby affecting absorption or utilization, so they may not all be suitable for consumption at the same time. She reminds you to pay special attention to the five major landmine combinations; situational photos. (Picture taken from freepik)

[Health Channel/Comprehensive Report] When supplementing different health products, many people may swallow them all at once for the sake of convenience. Be careful, the effect may be reduced. Nutritionist Zhang Xinfang pointed out that the ingredients of different health products may interact, thereby affecting absorption or utilization, so they may not all be suitable for consumption at the same time. In addition, if some health foods are used together with medicines, special attention must be paid to the taking time. It is especially important to note that the five major combinations of calcium, iron, zinc, and calcium should be eaten in staggered intervals. Eating the right amount is more important than eating too much.

Don’t step on 5 major landmine combinations by mistake

Zhang Xinfang pointed out in a Facebook fan page that health foods cannot be eaten together at all, but they should be judged based on their ingredients to avoid affecting each other's absorption and utilization. She also sorted out the following combinations of health products, medicines, and drinks, reminding you to pay special attention when taking them:

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●Calcium × Iron: Calcium may interfere with iron absorption. If both are supplemented at higher doses, it is recommended to stagger the intake.

●Calcium × Zinc: High amounts of calcium may affect zinc absorption. If high-dose supplementation is required, consider staggering the dosage.

●Fish oil × anticoagulant/antiplatelet drugs: If you are taking related drugs, please ask your doctor or pharmacist before supplementing.

●Probiotics × Antibiotics: It is usually recommended to stagger by about 2 hours.

●Iron × coffee/tea: It is recommended to stagger the time by about 1 to 2 hours.

Vitamin C helps iron absorption

However, not all nutrients need to be eaten separately. Zhang Xinfang pointed out that vitamin C can help improve the absorption of non-blood matrix iron. Therefore, when supplementing iron, you can combine it with foods rich in vitamin C such as guava, kiwi fruit, and citrus. In addition, fat-soluble vitamins A, D, E, K, etc. are recommended to be eaten with meals containing fat to facilitate absorption. Also, pay attention to whether repeated supplements are given with different products.

Be careful with calcium and iron supplements when taking thyroid medicines

In addition, Zhang Xinfang reminded that if you are taking thyroid drugs, such as Eltroxin, you should also pay special attention to supplementing calcium, iron and other health products, which may affect the absorption of the drugs. Usually, you need to stagger at least 4 hours. The actual method of taking should still follow the instructions of your doctor or pharmacist.

Zhang Xinfang reminded that the more health food you eat, the better, nor is it the most convenient to swallow them all together. Eating more is more important than eating more. Especially those who have chronic diseases, are pregnant, are taking medication, or are supplementing with multiple health foods at the same time, it is recommended to consult a doctor, pharmacist or nutritionist first so that they can take supplements safely and healthily.