Caffeine has a mild diuretic effect, which leads to an increase in urination. As a result, water-soluble vitamins, such as B-vitamins and vitamin C can be depleted due to fluid loss. Research also demonstrated that the higher the level of caffeine, the more it interfered with vitamin D absorption.
Try to avoid taking your vitamins with coffee or tea
The tannins and caffeine can interfere with the absorption of many vitamins and minerals, especially iron. Caffeine also increases urination, which can decrease the concentration of water-soluble vitamins (B-complex and C).
Caffeine may reduce the absorption of manganese, zinc and copper. It also increases the excretion of the minerals magnesium, potassium, sodium and phosphate. There is also evidence that caffeine interferes with the action of vitamin A.
Some beverages, including coffee, contain substances that could interfere with the absorption of some of the nutrients in your vitamin. It's better to drink your coffee about 15 minutes before or a few hours after you take your vitamin.
No interactions were found between caffeine and Vitamin B12.
Taking vitamin B-12 with vitamin C might reduce the available amount of vitamin B-12 in your body. To avoid this interaction, take vitamin C two or more hours after taking a vitamin B-12 supplement.
Antibiotics, Tetracycline: Vitamin B12 should not be taken at the same time as tetracycline because it interferes with the absorption and effectiveness of this medication.
Caffeine can interfere with the absorption of certain minerals, including magnesium, calcium, and iron, but the loss is minimal.
Drinking Coffee – Drinking coffee lowers your calcium and magnesium levels. Many people can be dependent on drinking coffee, and that is understandable, seeing its wide range of benefits from keeping us awake, and raising our body's levels of antioxidants.
Dr. Christian Goldsmith from Auburn University, Alabama, USA, have discovered that zinc can protect against the superoxide responsible for oxidative stress when taken together with a component found in foodstuffs such as wine, coffee, tea and chocolate.
“Digestion slows down during sleep, so taking your nutrient supplement late at night would not be associated with an efficient absorption.” Neil Levin, a clinical nutritionist at NOW Foods, agrees that morning is best for multivitamins and any B vitamins.
Therefore, conditions that affect the gut and digestion, like celiac disease, chronic pancreatitis, Crohn's disease, and cystic fibrosis, can reduce vitamin D absorption.
You should take your multivitamins in the morning with a meal so you can ease absorption. However, if that causes stomach pain, try taking it before bed. Remember, the most important thing is to make them a part of your daily routine.
Coffee also seems to impact on the metabolism of some B vitamins like thiamine. Vitamin B12, though, looks like being a possible exception – indeed, caffeine's stimulation of stomach acid production may actually assist, instead of compromise, your body's B12 absorption.
Vitamins and minerals
Let's start with magnesium. A cup of coffee contains about 7 mg, which is a drop in the daily-requirement bucket (420 mg for men, 320 mg for women).
Caffeine leaches calcium from bones, sapping their strength. "You lose about 6 milligrams of calcium for every 100 milligrams of caffeine ingested," Massey says. That's not as much of a loss as salt, but it's worrisome, nonetheless.
Foods with Zinc
As these bonds are very difficult for your body to break down, drinking coffee can lead you to excrete zinc that you otherwise would absorb. Avoid drinking coffee after eating sources of zinc, such as oysters, red meat, poultry, beans and nuts.
Drink water: You should already be drinking water throughout the day to keep hydrated, and after coffee is no exception. After you've finished a cup of coffee, drink plain water to rinse your teeth off. The water will act as a buffer to the acid in the coffee that is now in your saliva.
Eat fiber and protein
“But when we start the day with fiber from a whole food source, we can majorly help to balance blood sugar.” She suggests having half a cup of berries, a banana, an orange, or a date with almond butter before your morning coffee.
Interactions between your drugs. No interactions were found between Vitamin B12 and Vitamin D3. However, this does not necessarily mean no interactions exist. Always consult your healthcare provider.
Deficiencies of vitamin B12 and folic acid can cause anemia, which can lead to low blood pressure, also known as hypotension. Vitamin B12 helps your body produce red blood cells so that adequate oxygen reaches each and every part of your body, including the heart.