Last reviewed on 12 September 2026.
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This page looks at what a cup of chai actually contains, the iron problem that matters most in a country with widespread anaemia, the sugar that accumulates quietly across the day, and the groups for whom tea deserves more thought, from pregnant women to young children.
Is tea good for health?
For most adults, yes, in moderate amounts. Tea leaves contain polyphenols, catechins in green tea and theaflavins and thearubigins in black tea, and regular tea drinking has been associated in observational studies with modestly lower risks of heart disease and stroke. Such studies cannot rule out other explanations, so tea is best treated as a harmless and possibly helpful habit rather than a remedy. Plain tea has almost no calories. What turns chai into a concern is rarely the leaf; it is the sugar, the timing and, for some people, the caffeine.
How much caffeine is in a cup of chai?
Roughly 30 to 50 mg in a typical cup, though strength varies widely. CTC tea boiled for several minutes with milk and water extracts a fair amount of caffeine, and a dark, kadak chai can go higher, while a light cup made with a quickly dipped tea bag may come in lower. A cup of brewed coffee usually carries two to three times as much. Three or four cups of ordinary chai a day therefore sit well within the limits for healthy adults, which are covered in the sibling page asking whether coffee is good or bad for you.
Does tea reduce iron absorption?
Yes, and for Indians this is the tea question that matters most. The tannins and other polyphenols in tea bind non-haem iron, the form found in dal, grains, green leafy vegetables and jaggery, and a cup of tea taken with a meal can cut the iron absorbed from that meal substantially. Haem iron from meat and fish is affected far less. In a country where NFHS-5 (2019 to 2021) found more than half of women aged 15 to 49 to be anaemic, a habit of chai with every meal is not a trivial one.
How long should you wait between tea and meals?
About an hour on either side. ICMR-NIN's Dietary Guidelines for Indians (2024) advise avoiding tea and coffee for roughly an hour before and after meals, precisely because of the effect on iron. In practice, that means moving the morning cup well ahead of breakfast or to mid-morning, and keeping the evening chai away from dinner. Eating vitamin C foods such as lemon, amla, guava or tomato with the meal helps the body take up more iron. The page on iron-rich Indian foods shows which foods supply most of it.
Rearranging the cups without giving them up
ICMR-NIN's 2024 guidelines ask for about an hour on either side of a meal. That is a timing change rather than a sacrifice.
Move the first cup away from breakfast
Either well ahead of the meal or out to mid-morning, so the iron in it is not competing with tannins.
Keep the evening chai clear of dinner
An hour on either side is the guidance, and dinner is usually the easier meal to protect.
Keep iron tablets well away from tea
Take them exactly as prescribed, at least an hour clear of a cup, and ask the doctor or pharmacist if the timing is unclear.
Put a vitamin C food on the plate
Lemon, amla, guava or tomato with the meal helps the body take up more iron from dal, greens and grains.
Bring the sugar down as you go
Cut to one teaspoon, or taper across a few weeks. Taste adjusts faster than most people expect it to.
Should people with anaemia avoid tea?
They should keep it well away from meals and iron tablets, and many do better with fewer cups overall. Someone being treated for iron deficiency needs every bit of absorption they can get, and tea around iron-rich meals or tablets works directly against the treatment. Take the tablets exactly as your doctor has prescribed, keep chai at least an hour clear of them, and ask the doctor or pharmacist if the timing is unclear. The anaemia diet chart shows how to arrange meals that support the treatment.
How much sugar does chai add in a day?
More than most people count. Two teaspoons of sugar in a cup is about 8 to 10 g, and four such cups come to 32 to 40 g of sugar from chai alone. WHO advises keeping free sugars below 10 per cent of daily energy, and ideally below 5 per cent, which for many adults is about 25 g. A four-cup habit can therefore use up the whole ideal allowance before a single biscuit. Cutting to one teaspoon, or tapering over a few weeks, is easier than it sounds because taste adjusts. The page on how much sugar is safe per day has the detail.
How many calories are in a cup of masala chai?
About 60 to 90 kcal for a typical cup with milk and two teaspoons of sugar. Roughly half comes from the milk and half from the sugar; the tea leaves, ginger, cardamom and other spices add almost nothing. Full-cream milk and a bigger cup push the figure towards 100 kcal or beyond. The masala chai recipe shows the usual proportions, and the sugar is the easiest thing to adjust. Rusks or biscuits dunked alongside can double the total without anyone noticing.
Is it bad to drink tea on an empty stomach?
It is not harmful for everyone, but it does unsettle some stomachs. Strong tea first thing in the morning, before any food, leaves many people with nausea, a sour taste or acidity, possibly because tannins and caffeine meet an empty stomach. Others drink bed tea for decades without trouble. If your first cup is regularly followed by discomfort, try taking it with or after a small bite, such as a few soaked almonds or a piece of fruit, while still keeping it apart from the main iron-bearing meal.
Is tea good or bad for blood pressure?
It has little effect either way for most people. The caffeine in a cup of tea is modest, so any brief rise in blood pressure is smaller than with coffee, and some pooled trials suggest that regular tea drinking may lower blood pressure by a couple of mm Hg over months. That is far too small to count as treatment. For people with high blood pressure, the salt in what comes with chai, from namkeen to pakoras and salted biscuits, is a bigger concern than the tea in the cup.
Is tea safe in pregnancy?
Yes, in moderation, provided the caffeine is counted. Pregnant women are generally advised to keep caffeine to 200 mg a day or less from all sources together, which allows a few cups of ordinary chai but not unlimited kadak tea alongside coffee and cola. Iron needs peak in pregnancy, so keeping tea away from meals and from iron and folic acid tablets matters even more. Where the obstetrician has given specific advice about caffeine, that advice takes priority over any general figure.
Should children drink tea?
Not as a daily habit. Tea gives children caffeine they do not need, sugar they are better without, and tannins that reduce iron absorption at ages when anaemia is common in India. A cup of chai can also take the place of milk or a proper snack. An occasional weak cup with the family is unlikely to harm an older child, but it is wiser not to start a daily routine in young children, and a child who is anaemic or underweight should have their diet guided by a paediatrician.
Is green tea healthier than regular tea?
Not by much, as a drink. Green tea keeps more catechins because its leaves are not oxidised, while black tea converts many of them into theaflavins and thearubigins; both are rich in polyphenols. A Cochrane review published in 2012 found that green tea preparations produced only a small, clinically unimportant weight loss. Concentrated green tea extract is a different matter: in 2018 the European Food Safety Authority linked supplement doses of the catechin EGCG at or above 800 mg a day with rises in liver enzymes that signal liver injury. Drink the tea and leave the capsules alone.
How many cups of tea a day is fine?
For most healthy adults, three to four cups of ordinary chai a day is a reasonable ceiling, and sugar sets the limit sooner than caffeine does. Four cups at 30 to 50 mg each is well within safe caffeine intake. If the cups are sweetened, the sugar arithmetic above bites long before the caffeine does. Spacing them between meals rather than with them protects iron absorption, and switching the last cup of the day to a caffeine-free herbal infusion helps anyone whose sleep is light.
Tea as part of a professional eye for drinks
Tea is a small example of a larger skill: seeing what the drinks in someone's day add up to in sugar, caffeine and calories, and suggesting changes they will actually accept. NNWA's Beverage Nutrition course is a beginner-level programme lasting three to four weeks, on calories in drinks, hidden sugar, beverage labels, hydration, sports and energy drinks, and smarter Indian beverages. The fee is 6,999 rupees, down from 10,999, or EMI of 583 rupees a month, and learners receive an NNWA certificate.
What to keep in your cup
Plain tea is a healthy drink with polyphenols and a modest 30 to 50 mg or so of caffeine per cup. Keep it an hour away from meals and iron tablets, because tannins reduce iron absorption, and count the sugar, which adds up faster than the caffeine. Count caffeine in pregnancy, keep daily chai out of young children's routines, and enjoy green tea as a drink rather than a capsule. Three or four cups a day, spaced sensibly, suits most adults.