How does Kairo track calories?

Kairo uses advanced AI to analyze photos of your food and automatically calculate calories and macronutrients. Simply take a photo of your meal, and Kairo does the rest.

Is Kairo available on Android?

Currently, Kairo is exclusively available for iOS devices. We are working on an Android version for the future.

How much does Kairo cost?

Kairo offers a yearly subscription with a 3-day free trial, as well as a monthly subscription. You can test all features during the trial and cancel anytime before it ends.

Does Kairo work with Apple Health?

Yes, Kairo fully integrates with Apple Health to sync your nutrition data and provide a comprehensive health overview.

How many calories do I need per day?

Your daily calorie needs depend on factors like age, gender, weight, height, and activity level. Kairo automatically calculates your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE) based on your profile using the scientifically recognized Mifflin-St Jeor equation.

What is the difference between BMR and TDEE?

BMR (Basal Metabolic Rate) is the number of calories your body burns at rest to maintain basic functions. TDEE (Total Daily Energy Expenditure) includes your BMR plus calories burned through physical activity and digestion. TDEE is the total number of calories you need per day.

What is the Body Map in Kairo?

The Body Map is a unique Kairo feature that shows you at a glance how your nutrition supports different body systems — brain, heart, muscles, bones, digestion, and skin & immune system. It provides personalized insights based on your daily food intake.

What makes Kairo different from other calorie trackers?

Kairo combines AI-powered food scanning with features like Body Map nutrition insights, social group tracking with emoji reactions, streak motivation systems, and beautiful iOS widgets. It focuses on simplicity and design while providing comprehensive nutrition tracking.

What is BMI and how is it calculated?

BMI (Body Mass Index) is calculated by dividing your weight in kilograms by your height in meters squared: BMI = weight / (height in m)². A BMI of 18.5-24.9 is considered normal weight. Note that BMI does not account for muscle mass or body composition.

All Foods

Sardines (Canned in Oil, Drained) vs Tuna (Canned in Water)

Calories, macronutrients and nutrition facts compared side by side (per 100g).

Protein

Sardines (Canned in Oil, Drained)

208 kcal24.6g Protein

per 100g

Protein

Tuna (Canned in Water)

116 kcal25.5g Protein

per 100g

Nutrition Comparison

Per 100g	Sardines (Canned in Oil, Drained)	Tuna (Canned in Water)
Calories	208kcal	116kcal
Protein	24.6g	25.5g
Carbs	0g	0g
Fat	11.5g	0.8g
Fiber	0g	0g
Sugar	0g	0g
Sodium	307mg	247mg

Green marks the more favorable value (fewer calories/sugar/sodium, more protein/fiber).

Key Takeaways

Tuna (Canned in Water) has 92 fewer calories per 100g than Sardines (Canned in Oil, Drained) (79% less).
Tuna (Canned in Water) delivers more protein (25.5g vs 24.6g per 100g).
Tuna (Canned in Water) contains less fat (0.8g vs 11.5g).

Sardines (Canned in Oil, Drained)

Sardines are a nutritional powerhouse — high in protein and omega-3 (EPA and DHA), and because they are eaten with their soft bones, an outstanding source of calcium and vitamin D. Being small and short-lived, they are very low in mercury.

View Sardines (Canned in Oil, Drained) nutrition →

Tuna (Canned in Water)

Canned tuna is one of the most calorie-efficient protein sources — 25g of protein for just 116 kcal. It provides selenium, vitamin B12, and omega-3 fatty acids, though levels are lower than in fattier fish like salmon. Choose water-packed over oil-packed to keep calories down, and rotate with other fish to limit mercury exposure.

View Tuna (Canned in Water) nutrition →

Track Sardines (Canned in Oil, Drained) & Tuna (Canned in Water) in Kairo

Scan your food with AI and automatically track calories and macros. No manual entry needed.

Try Kairo for free

More Comparisons

Bacon (Cooked) vs Sardines (Canned in Oil, Drained)Bacon (Cooked) vs Tuna (Canned in Water)Chicken Breast vs Sardines (Canned in Oil, Drained)Chicken Breast vs Tuna (Canned in Water)Chicken Thigh (Cooked, Skinless) vs Sardines (Canned in Oil, Drained)Chicken Thigh (Cooked, Skinless) vs Tuna (Canned in Water)Cod vs Sardines (Canned in Oil, Drained)Cod vs Tuna (Canned in Water)