Is there any substances that would affect nutrient absorptions?
| Source : |
TETRA Nutritional Consultation Centre |
| Published Date : |
3/15/2010 9:54:28 AM |
| Average rating : |
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Numerous and complex steps are involved from the moment we eat to the moment we absorb the nutrients in food. Even though our digestive system is highly sophisticated and equipped to handle clusters of nutrients at the same time, interactions among nutrients and other substances may interfere with absorption. In recent years, there has been much greater public awareness for healthy eating and balanced nutrition. For the sake of good health, it pays to know which substances may affect nutrient absorption the anti-nutrients.
| Anti-Nutrients |
Nutrients that may be affected |
| Alcohol |
Vitamin A, Vitamin B1, B2, folic acid, potassium |
| Tea leaves, coffee(incl. decaffeinated) |
Vitamin B1, potassium |
| Raw fish or shellfish |
Vitamin B1 |
| Avidin (found in raw egg white) |
Biotin |
| Phytate, polyphenol, soy protein |
Iron |
| Oral contraceptives with estrogen/progestin |
Vitamin B5, C |
| Vitamin A, E |
Vitamin K |
| Vitamin B5 |
Biotin |
| Calcium |
Non-heme iron (short term)td> |
| Iron |
Zinc |
| Zinc (supplement) |
Magnesium |
Anti-nutrients can be found commonly in our everyday diet. Some are nutrients. It is worthwhile to note that only prolonged exposure (unless otherwise stated) to high dosages would affect nutritional status, and it is not necessary to totally avoid anti-nutrients. Instead, try to maintain a balanced diet with good food variety and sensible portion control, as this would be most effective in reducing prolonged exposure to high dosages of anti-nutrients. If you have a special condition (e.g. on medication) that predisposes you to certain anti-nutrients, please consult a physician or a registered dietitian for professional advice on dietary modifications or supplement options.
Source: Sally Shi Po Poon (Registered Dietitian of TETRA Nutritional Consultation Centre)
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