Sweets, diabetes and Diwali: how to enjoy the festival without dangerous highs and lows

In short: People with diabetes can share Diwali sweets: plan for them. Take a small piece after a meal, not on an empty stomach, and walk for 10 minutes afterwards. Sugar-free mithai and jaggery still raise blood sugar. Never skip or change insulin or tablets for a fast without asking your doctor first.

Diwali falls on Sunday 8 November this year, and for about five days the house fills with mithai boxes, dry fruit hampers, late dinners and guests who will not take no for an answer. For a family member with diabetes, that is a week of blood sugar swings: highs from the sweets, and, less talked about, lows from fasting, alcohol or a skipped meal on top of their usual tablets or insulin.

It is a big group. The national ICMR-INDIAB survey, which tested more than 1.1 lakh adults across 31 states and union territories, found that 11.4% of Indian adults have diabetes and another 15.3% have prediabetes. In most extended families, someone at the Diwali table has one or the other.

This guide is for them and the people who cook and host for them. It covers what actually raises blood sugar, how to eat sweets with a plan, what is true about dry fruit, jaggery and “sugar-free” mithai, why fasting on diabetes medicines needs a word with your doctor first, and the warning signs that mean call 108 or 112.

Can people with diabetes eat sweets at all?

Yes, in a planned way. Neither Indian nor international guidelines ask people with diabetes to never touch a sweet. They ask for less sugar overall and for sugar to be counted, not grazed on.

• The sugar limit is the same for everyone. WHO advises adults and children to keep free sugars (sugar, jaggery, honey, syrups and juices added to food) under 10% of daily energy, and ideally under 5%, which is roughly 25 grams or 6 teaspoons a day.
• India’s guideline is stricter for diabetes. The ICMR guidelines for type 2 diabetes say honey, molasses, fructose, corn syrup and fruit juice concentrates “are best avoided” as sweeteners.
• Carbohydrate is the bigger picture. The ICMR-INDIAB diet study of 18,090 adults found Indian diets are high in low-quality carbohydrate (white rice, milled grains and added sugar). People in the highest carbohydrate group had 30% higher odds of having newly found type 2 diabetes than those in the lowest. A festive plate of puri, rice, kheer and mithai is several “carbohydrate meals” at once.

So the question is not “sweet or no sweet”. It is how much, when, and what else is on the plate that day.

What happens to blood sugar during festive eating?

Most mithai is sugar plus refined flour, khoya or milk solids, and ghee. The sugar and flour raise blood glucose quickly; the fat slows digestion, so the rise can last longer into the evening. Add a heavy dinner eaten late, little movement and a few rounds of tea with “just one more piece”, and readings that are usually fine can stay high for hours.

The ICMR guideline’s own targets give a sense of what “high” means after a meal. A blood sugar two hours after eating of 120 to 140 mg/dL is ideal, 141 to 180 mg/dL is satisfactory, and above 180 mg/dL is unsatisfactory. A fasting reading of 80 to 110 mg/dL is ideal. Your own doctor may set different targets for you, especially if you are older or have other illnesses.

One high reading after a festive meal is not an emergency. A week of them, or very high readings with feeling unwell, is a different matter (see the red flags below).

How can you plan portions and timing?

Small changes in when and how you eat a sweet make a measurable difference.

1. Eat the sweet after a meal, not on an empty stomach. A piece of mithai at 5 pm on an empty stomach goes straight into the blood. The same piece straight after lunch, when vegetables, dal and protein are already being digested, does less damage.
2. Vegetables and protein first, carbohydrate last. In a small pilot study of 11 adults with type 2 diabetes, eating the vegetables and protein first and the bread and juice 15 minutes later cut the blood sugar rise after the meal by 73% compared with the reverse order. It is a small study, but it is a free habit: salad, sabzi, paneer or dal first, then roti or rice, then the sweet.
3. Swap, do not add. If a sweet is coming, take one roti or one spoon of rice less at that meal. The ICMR-INDIAB diet study found that switching from refined flour to whole wheat or millet flour without cutting the total amount of carbohydrate was not linked to lower diabetes risk. The amount matters more than the grain.
4. One piece, one plate. Put one small piece on a plate and sit down with it. Eating from the open box while talking is how six pieces happen.
5. Choose smaller and simpler. A small piece of a milk sweet you love beats three fried, syrup-soaked ones you do not care about. Share a piece with someone if you can.
6. Do not “save up” by skipping meals. Skipping breakfast to make room for evening sweets can cause a low in the afternoon if you take insulin or a sulfonylurea, and then a large spike at night.
7. Drink water. The ADA advises water over other drinks for people with diabetes. Sweetened lassi, thandai, cold drinks and packaged juices count as sweets.
8. Check your sugar more often during the festival week, including two hours after the biggest meal, so you see what your usual festive day really does.

Is dry fruit better than mithai?

Partly. Nuts and dried fruit are very different foods, and gift boxes mix them.

Nuts (almonds, walnuts, pistachios, unsalted peanuts) are mostly fat, protein and fibre, with little sugar. The ADA’s 2026 Standards of Care encourage nuts and seeds as plant protein, and the ICMR guideline notes that nuts in moderation may help blood sugar and heart risk. They are still dense in calories, so a small handful is a portion, not the whole tin. Salted, fried, honey-roasted or masala-coated nuts are a different product.

Dried fruit (dates, raisins, figs, apricots) is fruit with the water taken out, so the sugar is concentrated. A useful way to see this: the ADA’s own list of foods to treat a low blood sugar includes about 3 dates or 2 tablespoons of raisins, each giving roughly 15 grams of fast carbohydrate. That is the dose used to rescue a hypo. Eaten for pleasure, a few dates and a handful of raisins count as a sweet.

So a box of plain nuts is a better gift than mithai for most people with diabetes. A box of dates and anjeer rolls is not.

Myths and facts about sweets and diabetes

1. Myth: “Sugar-free sweets are free to eat.”

Fact: “Sugar-free” mithai still contains khoya, milk solids, flour, nuts and ghee. India’s 2024 dietary guidelines from ICMR-NIN warn that sugar-free foods may be loaded with fats, refined flour or starch, and hidden sugars such as maltitol, fructose or molasses. The ADA says sweeteners can replace sugar in moderation, for the short term, to cut calories and carbohydrate. That is a swap for sugar, not permission for a whole box.

2. Myth: “Jaggery is safe for diabetics because it is natural.”

Fact: Jaggery is boiled-down cane juice. It is about 80 to 85% sucrose, against 99.5% for refined sugar, and most of the rest is water. Its iron and minerals do not change what the sucrose does: it raises blood sugar much as sugar does. WHO counts sugar added by the cook as free sugar whatever its colour, and the ICMR diabetes guideline lists honey and molasses among sweeteners that are best avoided. Gur ki chikki and gur laddoos are sweets.

3. Myth: “If I skip food for a fast, I should skip my insulin or tablets too.”

Fact: Never decide this yourself. Stopping insulin can lead to diabetic ketoacidosis, especially in type 1 diabetes, and keeping the full dose of some tablets without food can cause a dangerous low. Some doses do need to change on a fast day; that is exactly why the plan has to come from your doctor, before the fast.

4. Myth: “Millet, atta or ‘healthy’ sweets do not raise sugar.”

Fact: Partly true at best. A ragi laddoo or atta halwa may have a little more fibre, but it still has sugar or jaggery, ghee and flour. The ICMR-INDIAB diet study found swapping refined flour for whole wheat or millet without eating less carbohydrate overall was not linked to lower diabetes risk.

5. Myth: “Bitter gourd juice or methi water in the morning cancels the evening’s sweets.”

Fact: No home remedy undoes a sweet. The ADA’s 2026 Standards say herbal supplements such as cinnamon and aloe vera are not recommended for blood sugar benefit. Keep taking your prescribed medicines and use portions, timing and a walk instead.

6. Partly true: “A walk after dinner brings the sugar down.”

Fact: It helps, and the evidence is good: see the next section. But a walk does not cancel a box of sweets, and for people on insulin or sulfonylureas a long, fast walk can cause a low later. A 10-minute easy walk is the right dose.

7. Myth: “Alcohol has no sugar, so it does not affect diabetes.”

Fact: Alcohol can make blood sugar fall, sometimes many hours later, while asleep. ICMR warns that alcohol on an empty stomach may cause hypoglycaemia, and the ADA warns of delayed lows in people on insulin or tablets that push the pancreas to make insulin.

Does a walk after meals really help?

Yes. This is one of the best-tested habits in diabetes care.

• In a trial in New Zealand, 41 adults with type 2 diabetes were asked to walk either 30 minutes once a day, or 10 minutes after each main meal. The after-meal walks lowered the blood sugar rise after meals by 12% on average, and by 22% after the evening meal, the meal with the most carbohydrate and the least movement.
• A 2022 review pooling seven trials found that breaking up long sitting with short bouts of light walking lowered blood sugar after eating more than sitting or just standing up.
• The ADA’s 2026 Standards advise breaking up prolonged sitting at least every 30 minutes for blood sugar benefits.

For Diwali, that means a 10-minute walk after lunch and after dinner, even a slow one around the colony or up and down the terrace. Watching the diyas counts if you are on your feet.

Two cautions. If you take insulin or a sulfonylurea, the ADA notes that lows after exercise can occur and last for several hours, so carry a sugar source and check before bed. And Diwali night often has the worst air of the year: if the AQI is very poor, walk indoors, along a corridor or around the house. Our guide to the air pollution season explains how to read the AQI.

Fasting with diabetes medicines: talk to your doctor first

Many people fast around the festival: on Karva Chauth, during Chhath, or on Lakshmi Puja day until the evening puja. The ADA’s 2026 Standards say people with diabetes who fast for religious reasons have a higher risk of hypoglycaemia, dehydration, high sugar and ketoacidosis, and that their treatment plan, doses and timing should be reviewed well in advance of the fast.

Speak to your doctor before you fast, and tell them which medicines you take. Do not reduce, skip, double or re-time any dose on your own. Your doctor may say fasting is fine with a changed dose, or that it is not safe for you this year.

Why it matters, medicine by medicine (for your discussion with the doctor, not for self-adjustment):

• Insulin and sulfonylureas (glimepiride, gliclazide, glibenclamide and others) carry the highest risk of hypoglycaemia when you do not eat. The ICMR guideline singles them out as the diabetes medicines that commonly cause low sugar. An Indian expert review of Hindu fasts describes how doctors may lower or change these doses on a fast day, and why insulin regimens built around three meals may need a different plan.
• SGLT2 inhibitors (empagliflozin, dapagliflozin, canagliflozin) can rarely cause ketoacidosis. The ADA lists prolonged fasting, dehydration and excessive alcohol among the risk factors, and advises that doctors consider pausing them when someone cannot keep up their food and fluid intake. Ask whether you should take yours on a fast day.
• Metformin alone rarely causes lows, but it still needs a plan around meals and fluids, especially during illness.

If your doctor agrees you can fast:

1. Check your sugar before the fast, during it, and whenever you feel unwell. Pricking the finger to check sugar does not break a fast, as international fasting guidelines point out.
2. Break the fast at once if your sugar is below 70 mg/dL, or you feel shaky, sweaty, very hungry, confused or faint, whatever the time. Ask your doctor in advance what high reading should also make you stop.
3. Drink water if your fast allows it, especially if you take an SGLT2 inhibitor.
4. Break the fast gently. The Indian review warns that overeating after a fast causes sharp sugar peaks. Start with water, a normal plate, and leave the sweets for the end.

How do you treat a low blood sugar?

A low (hypoglycaemia) means blood sugar below 70 mg/dL. Signs include hunger, sweating, trembling and a pounding heart. A severe low causes confusion or collapse, and the person needs someone else’s help.

If the person is awake and able to swallow, use the ADA’s 15-15 rule:

1. Give 15 grams of fast sugar: one tablespoon of sugar (stirred into water), one tablespoon of honey, half a cup of fruit juice, half a cup of a regular (not diet) cold drink, or about 3 dates.
2. Wait 15 minutes and check again. If it is still below 70 mg/dL, repeat.
3. Once it is back up, eat a proper snack or the next meal.

Chocolate, khoya mithai and nuts are poor hypo treatment: the ADA notes that added fat slows the rise, and protein should not be used to treat a low. Keep glucose tablets or sugar sachets in a pocket or purse during the festival.

If the person is drowsy, confused, fitting or unconscious, do not put anything in their mouth. Call 108 or 112.

What about alcohol at Diwali parties?

Card parties and family gatherings often include alcohol. The ADA advises people with diabetes who drink to stay within daily limits (no more than one drink a day for women and two for men), and people who do not drink should not start. ICMR advises that it is best avoided.

If you do drink:

• never on an empty stomach, and never instead of dinner;
• check your sugar before bed, and eat something if it is low or falling;
• tell someone you are with that you have diabetes, because a low can look like being drunk;
• be extra careful if you take insulin or a sulfonylurea, as the ADA warns the low can be delayed into the night.

Sweet mixers, cocktails and liqueurs add sugar on top.

Children and teenagers with type 1 diabetes

Children with type 1 diabetes can enjoy Diwali food like everyone else. The carbohydrate in sweets is counted and covered with insulin, the way their diabetes team has taught the family.

A few festival-specific points:

• Never stop or skip insulin, even if the child is eating less, is excited, or is unwell. The international paediatric guidance (ISPAD) is blunt: insulin doses may go up or down, but insulin should never be stopped completely.
• Late nights and running around with cousins can lower sugar for hours. Check before bed and overnight if the team advises it.
• Grazing all evening makes doses hard to match. Agree sweet times with the child (for example, with dinner) so they can be counted.
• Tell hosts and older cousins what a low looks like and where the glucose is kept.
• If the child is unwell, ISPAD advises checking glucose and ketones every 1 to 2 hours and aiming for 70 to 180 mg/dL with blood ketones below 0.6 mmol/L. Vomiting, stomach pain or fast deep breathing in a child with type 1 diabetes is treated as a sign of insulin shortage until proved otherwise: check ketones and call the team or go to hospital.

Healthier sweets to gift (and to keep at home)

You can still give generously without handing over a box that will sit on a diabetic relative’s table all week.

• Plain, unsalted nuts in a small box
• Fresh fruit: an apple, guava, pear or orange basket
• Roasted makhana or chana, lightly spiced
• Smaller boxes of mithai with fewer, smaller pieces
• Non-food gifts: diyas, plants, books, a pedometer
• If you make sweets at home, make them smaller and use less sugar or jaggery; remember they are still sweets

And when someone with diabetes says no to a second piece, take the no. Pressing food on a guest is affectionate; respecting their plan is kinder.

Red flags: when to call 108 or 112

Call 108 or 112, or go to an emergency department at once, if a person with diabetes:

• is drowsy, confused, fitting or unconscious, or cannot swallow safely;
• has a low that does not come up after two rounds of the 15-15 rule;
• has symptoms of diabetic ketoacidosis (DKA): feeling or being sick, stomach pain, fast or deep breathing, breath that smells fruity (like pear drops or nail polish remover), unusual sleepiness or confusion, with thirst and passing a lot of urine. The NHS says to get emergency care if you have these symptoms and do not know your ketone level;
• has high blood ketones over 3 mmol/L, or 2+ on a urine strip;
• has very high sugar with vomiting, or cannot keep fluids down;
• has chest pain, breathlessness, or sudden weakness of the face, arm or leg.

Call your doctor or diabetes team the same day if sugar stays high and your usual treatment is not bringing it down, if ketones are 0.6 to 1.5 mmol/L and you feel unwell or 1.6 to 3 mmol/L even if you feel fine, or if you have had more than one low during the festival.

The bottom line

Diwali does not have to mean either giving up sweets or giving up control. Eat a small piece after a meal, vegetables and protein first, carbohydrate last; walk for 10 minutes after lunch and dinner; treat jaggery, dry fruit and “sugar-free” mithai as sweets; and keep 15 grams of sugar in your pocket in case of a low. Above all, if you plan to fast or drink, talk to your doctor first and never change insulin or tablets on your own.

For the rest of the festival, our Diwali safety checklist covers burns, eye injuries and noise.

This article is general health information, not medical advice. Your own doctor’s plan for your medicines comes first. In an emergency, call 108 or 112, or go to the nearest hospital.

Frequently asked questions

Can a person with diabetes eat sweets on Diwali?

Usually yes, in a planned way. Indian and international guidelines do not ban sweets outright; they ask people with diabetes to keep sugar low overall. In practice that means one small piece, eaten straight after a meal rather than on an empty stomach, counted as part of that meal's carbohydrate, followed by a 10-minute walk. People whose sugar is poorly controlled, who are pregnant, or who have kidney disease should ask their own doctor or dietitian what fits their plan.

Can I keep a festival fast such as Karva Chauth or Chhath if I take diabetes medicines?

Talk to your doctor before the fast, not on the day. Insulin and sulfonylurea tablets such as glimepiride and gliclazide can push sugar dangerously low when you do not eat, and SGLT2 inhibitor tablets can cause ketoacidosis with prolonged fasting or dehydration. Your doctor may change the dose or timing for that day. Do not reduce, skip or double any dose on your own. If you do fast, check your sugar, and break the fast at once if it falls below 70 mg/dL or you feel shaky, sweaty or confused.

Are sugar-free sweets safe for diabetics?

They are not free. Sugar-free mithai still contains khoya, milk solids, flour, nuts and ghee, which add carbohydrate, fat and calories. India's 2024 dietary guidelines from ICMR-NIN warn that sugar-free foods may be loaded with fats, refined flour and hidden sugars such as maltitol. Sweeteners can replace some sugar for a short time, as the ADA notes, but a sugar-free box eaten freely can raise blood sugar and weight as much as ordinary mithai.

What should I do if my sugar goes low during Diwali?

If the reading is below 70 mg/dL and the person is awake and can swallow, give 15 grams of fast sugar: for example one tablespoon of sugar in water or half a cup of fruit juice. Recheck after 15 minutes and repeat if it is still low. Then have a proper snack or meal. Do not give anything by mouth to someone who is drowsy or unconscious; call 108 or 112 at once.

My child has type 1 diabetes. Can they eat mithai at Diwali?

Yes. Children with type 1 diabetes can eat festive food if the carbohydrate is counted and covered by insulin as their diabetes team has taught. Never skip or stop insulin, even if the child is eating less. Running around with cousins and late nights can drop sugar hours later, so check more often, including before bed. If the child vomits, has stomach pain, or breathes fast and deep, check ketones and contact the team urgently.