Many people have a habit of drinking functional foods as soon as they wake up because it is convenient to remember. However, the morning often starts with hunger, coffee and a rush schedule, which can affect the ability to absorb vitamins and minerals or cause stomach discomfort. Choosing the right time to drink is an important factor for the body to get enough nutrients.
Iron
Non-heme iron is a common form in supplements, but absorption can be significantly reduced when used with coffee, tea or calcium-rich foods (can be reduced by up to 45%).
To optimize absorption, iron should be taken between meals and combined with foods rich in vitamin C such as oranges, strawberries or bell peppers. If it causes stomach discomfort, you can drink iron with a light meal to make it easier to absorb.
Zinc
Zinc is prone to nausea, stomach irritation, or vomiting, especially when taken on an empty stomach. Zinc absorption is also affected by other minerals such as iron. A better time to drink zinc is at lunch or dinner. At the same time, you should separate the time of zinc and iron to optimize absorption and reduce side effects.
Magnesium
Some forms of magnesium, especially magnesium citrate or magnesium hydroxide, can cause diarrhea if taken in the morning on an empty stomach. Magnesium glycinate is often used to support sleep, so taking it in the evening will be more effective. If you need to divide the dose, you can take half of the morning and the other half before bed.
Calcium (especially calcium carbonate)
Carbonate calcium is best absorbed when used with food, thanks to stomach acid strengthening the absorption process. Drinking on an empty stomach can cause bloating or constipation. The optimal dosage is ≤500 mg per time. Avoid drinking with iron, as calcium can reduce iron absorption.
Vitamin D
Vitamin D is liposoluble, should be taken with a meal containing fat for better absorption. Drinking it on an empty stomach in the morning can reduce the effectiveness of supplementation.
Vitamin E
Like vitamin D, vitamin E needs fat to be absorbed. Using it as soon as you wake up or on an empty stomach will limit the ability to absorb it. You should drink it with a main meal or a fat-containing snack.
Notes
Choosing the right time helps vitamins and minerals be maximally absorbed and reduce digestive side effects. When using multiple supplements at the same time, consult your doctor or pharmacist to avoid interactions and ensure effectiveness.
