Diabetes Management: Diet, Exercise, and Warning Signs You Shouldn't Ignore

Understanding Diabetes in Brief

Diabetes occurs when the body does not make enough insulin, or cannot use it effectively, so glucose stays high in the blood instead of entering cells. Type 2 diabetes, the most common form, is linked to insulin resistance, excess weight, inactivity, genetics and age. Type 1 diabetes results from the immune system destroying insulin-producing cells and always needs insulin. Gestational diabetes appears during pregnancy. Persistently high blood sugar damages the eyes, kidneys, nerves, heart and blood vessels, which is why good control matters even when you feel well.

Know Your Targets

Targets are individual, but common goals for many adults are:

• HbA1c: about 7 percent or lower, as advised by your doctor. It reflects average blood sugar over three months.
• Fasting blood sugar: roughly 80 to 130 mg/dL.
• Two hours after meals: under about 180 mg/dL.
• Blood pressure: under about 130/80 mm Hg.
• LDL cholesterol: lower targets for people with diabetes, often under 100 mg/dL, and lower with heart disease.

Older adults and those with other illnesses may have more relaxed targets to avoid low blood sugar.

The Plate Method for Indian Meals

A simple way to build balanced meals without counting every gram:

• Half the plate: non-starchy vegetables such as spinach, methi, bhindi, lauki, tori, cabbage, cauliflower, beans, tomato, cucumber and salad.
• One quarter: protein such as dal, rajma, chole, sprouts, paneer, curd, eggs, fish, chicken or tofu.
• One quarter: whole-grain carbohydrate, such as one to two rotis of whole wheat, millet (jowar, bajra, ragi), a small portion of brown rice or oats.
• A small amount of healthy fat: a teaspoon of oil or ghee for cooking, nuts or seeds.

What to Eat More Of

1. 1High-fibre foods: whole grains, millets, pulses, vegetables and fruits with skin slow the rise in blood sugar.
2. 2Proteins at every meal, which improve fullness and reduce spikes.
3. 3Vegetables first. Eating salad or vegetables before the carbohydrates can reduce the post-meal sugar rise.
4. 4Healthy fats: nuts such as almonds and walnuts, flaxseed, chia, olive or mustard oil in moderation and fatty fish.
5. 5Whole fruits in portions: an apple, guava, orange, papaya or a small bowl of berries rather than juice. Eat fruit with meals or as a snack, not in large quantities.
6. 6Curd or buttermilk, unsweetened, for protein and gut health.
7. 7Water, and unsweetened drinks such as lemon water or herbal tea.

What to Limit or Avoid

• Sugary drinks: soft drinks, packaged juices, sweetened lassi and sweet tea.
• Sweets and desserts: mithai, ice cream and bakery products, except as occasional, small treats.
• Refined carbohydrates: white bread, maida products, noodles, bakery biscuits and polished rice in large portions.
• Deep-fried and processed foods: samosas, pakoras, chips, namkeen and packaged snacks, which add calories, trans fat and salt.
• Large portions of rice, roti or potatoes at one meal.
• Excess salt, which affects blood pressure.
• Alcohol, which can cause low blood sugar, especially on an empty stomach or with insulin or tablets.
• "Diabetic" labelled packaged foods, which are often not healthier. Check labels.

Sample Day of Eating

• Early morning: water, or tea or coffee without sugar.
• Breakfast: vegetable besan chilla, moong dal chilla, vegetable oats upma, or two eggs with a multigrain roti, with a bowl of curd.
• Mid-morning: a fruit such as guava or apple, or a handful of nuts.
• Lunch: salad, dal or sabzi, one or two rotis of multigrain flour or a small portion of brown rice, and curd.
• Evening: roasted chana, sprouts chaat, or buttermilk with a small snack.
• Dinner: an early, lighter meal with vegetables, dal or grilled fish or paneer and one roti, at least two hours before bed.

Ask your doctor or dietitian to tailor portions to your weight, activity and medicines.

Meal Timing and Habits

• Eat at regular times and do not skip meals, especially if you take insulin or tablets that can cause low sugar.
• Spread food across three meals and one or two small snacks, as advised.
• Eat slowly, and stop before you feel stuffed.
• Avoid late-night eating, and take a short walk after dinner.
• Read food labels for sugar, fat and sodium.
• During festivals and weddings, plan ahead: eat a balanced meal before the event, take small portions of sweets, enjoy them after protein and vegetables and keep up your walks.

Exercise: The Second Pillar

Physical activity makes the body more sensitive to insulin and lowers blood sugar, blood pressure and cholesterol.

• Aerobic exercise: at least 150 minutes per week of brisk walking, cycling, swimming, dancing or yoga, spread across most days, with no more than two days without activity.
• Resistance training: two to three sessions per week using body weight, bands or light weights, which builds muscle and improves glucose use.
• Break up sitting: stand and move for a few minutes every 30 minutes, especially if you work at a desk.
• Post-meal walks: a 10 to 15-minute walk after meals measurably lowers post-meal sugar.
• Balance and flexibility work: yoga, tai chi and stretching reduce fall risk, particularly in older adults.

Exercise Safety

• Check your blood sugar before and after exercise if you take insulin or medicines that can cause lows.
• Carry a fast-acting carbohydrate such as glucose tablets, juice or a few biscuits.
• Wear well-fitting shoes and check your feet daily for blisters or cuts.
• Stay hydrated and avoid exercising in extreme heat.
• Start slowly if you have been inactive, and see a doctor first if you have heart disease, high blood pressure, eye or nerve complications.
• Do not exercise if your blood sugar is very high with ketones, or if you feel unwell.

Monitoring at Home

• Home glucose testing: the frequency depends on your treatment. People on insulin test more often; others test at specific times as advised, such as fasting and two hours after a meal, to understand how food and activity affect them.
• Keep a diary of readings, meals and activity, which helps your doctor adjust treatment.
• Continuous glucose monitors are useful for some people and show trends throughout the day and night.
• HbA1c every three to six months.
• Annual checks: eyes, kidneys (urine albumin and creatinine), feet, cholesterol, blood pressure and dental health.

Taking Medicines Properly

• Take tablets and insulin exactly as prescribed, and never change doses on your own.
• Learn how to recognise and treat low blood sugar.
• Carry your medicine list, and tell any doctor or dentist about your diabetes.
• Store insulin correctly, rotate injection sites and use new needles.
• Do not rely on herbal remedies or unproven supplements instead of prescribed medicines. Some products contain hidden steroids or other drugs.

Low and High Blood Sugar

Hypoglycaemia (low sugar, below 70 mg/dL) causes shakiness, sweating, hunger, palpitations, confusion and irritability. Treat immediately with 15 grams of fast sugar such as glucose tablets, half a glass of juice or a tablespoon of sugar, recheck in 15 minutes and repeat if needed, then have a snack. If a person is unconscious, do not put food in their mouth. Call for emergency help.

Hyperglycaemia (high sugar) causes thirst, frequent urination, tiredness and blurred vision. Persistently high sugar needs a medical review. Seek emergency care if there is vomiting, abdominal pain, fruity breath, confusion or fast breathing, especially in people with type 1 diabetes, since these may signal diabetic ketoacidosis.

Sick-Day Rules

When ill with fever, vomiting or diarrhoea:

1. 1Keep taking insulin unless your doctor says otherwise, because illness usually raises sugar.
2. 2Check blood sugar more often, every four hours or as advised.
3. 3Drink plenty of fluids, and have small, regular meals or sugary fluids if you cannot eat.
4. 4Call your doctor if you cannot keep fluids down, sugar stays high, or you are unwell for more than a day or two.

Weight, Sleep and Stress

• Losing 5 to 10 percent of body weight can improve blood sugar significantly, and larger weight loss can induce remission in some people with early type 2 diabetes.
• Seven to eight hours of sleep supports blood sugar control. Treat sleep apnoea if present.
• Stress raises blood sugar. Use relaxation, yoga, hobbies and talking to someone supportive.
• Quit smoking, since it multiplies the risks of heart and vessel damage.
• Look after your mood. Diabetes distress and depression are common, and treatable.

Caring for Your Feet, Eyes and Skin

• Inspect your feet daily, wash and dry them thoroughly, moisturise (not between toes) and never walk barefoot.
• Trim nails straight across and see a podiatrist for corns and calluses.
• Get a dilated eye examination yearly.
• Treat cuts and infections promptly, and keep skin clean and moisturised.
• Practise good dental hygiene, as gum disease is more frequent in diabetes.

Care at Trustmed Hospital

At Trustmed Hospital in Badshahpur, Gurugram, our general medicine team provides diabetes care that includes HbA1c testing, complication screening, medicine adjustment and lifestyle counselling, with dietary guidance and diagnostics in-house. Book an appointment for a diabetes review.

Frequently Asked Questions