Coffee contains caffeine, and milk contains calcium. Mixing the two can cause digestive issues, especially for those who already have digestive problems, and even more so if the mixture is taken on an empty stomach. If a person is used to having coffee with milk, it is best to have it in the afternoon, away from meals. It is preferable not to drink coffee
with milk at all.
What the science says: coffee, tea, and sugar
What published research says about the remedies mentioned above, for context — these studies concern material causes, while healing belongs to Allah.
Coffee, tea, and sugar
An umbrella review in the BMJ concludes that moderate coffee consumption (3-4 cups) is generally associated with favorable effects, except during pregnancy (BMJ, 2017) (Annu Rev Nutr, 2017); conversely, sugary drinks clearly increase the risk of diabetes and metabolic syndrome (Diabetes Care, 2010). Precaution: coffee and tea block iron absorption — keep them away from iron-rich meals; avoid caffeine after 3 p.m. if you have sleep issues.
