JAKARTA - Many people think that taking vitamins or supplements can be done anytime. In fact, there are several supplements that are advised not to be consumed in the morning.
This is because certain supplements cannot be absorbed well by the body if consumed on an empty stomach or in conjunction with drinking coffee in the morning. The following are some supplements.
1. Iron
The consumption of iron supplements should not be done in the morning on an empty stomach. This action can trigger digestive symptoms such as nausea and vomiting.
In addition, breakfast menus that already contain a lot of iron should not be combined with the consumption of iron supplements because it can cause constipation. Likewise, if you drink coffee in the morning, you should not take iron supplements.
"There are polyphenol compounds found in coffee called chlorogenic acid, which tend to bind to iron during digestion, making it more difficult for the body to absorb this mineral," said nutritionist Cheryl Mussatto, quoted from Good Housekeeping, Friday, January 23, 2026.
2. Vitamin A
Vitamin A is also a supplement that is not recommended to be consumed in the morning, especially if you do not consume foods containing fat. This can cause you to lose some of the benefits of the vitamin.
Without fat intake, vitamin A cannot be absorbed by the body perfectly. Vitamin A is a group of fat-soluble vitamins that are important for vision and have excellent antioxidant properties to prevent inflammation in the body.
3. Magnesium
Another supplement that should not be consumed in the morning is magnesium, especially magnesium glycinate which can help sleep. Ideally, magnesium supplementation is consumed at night because it helps you sleep well.
A study in 2024 also reported that magnesium helps regulate gamma-amino butyric acid or GABA which calms the nervous system and relaxes the muscles, so that sleep is more comfortable and quality.
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