D. Healthy Living · Healthy Living

Food and Long-Term Health: Building Healthier Eating Patterns

D2.1 A1.3 A1.6About 45 minutes

Learning goals

I can explain how some eating patterns can help prevent health problems and others can contribute to them.
I can name foods and nutrients that play a protective role, such as fibre, calcium and vitamin D.
I can look at an eating pattern and suggest realistic changes to make it healthier.

Words to know

eating pattern
The usual mix of foods and drinks a person has over days and weeks, not just one meal.

health disorder
A health problem or condition, such as type 2 diabetes, heart disease, tooth decay or osteoporosis.

contributing factor
Something that raises the chance of a health problem developing.

preventive (protective) factor
Something that lowers the chance of a health problem developing.

nutrient
A substance in food the body needs, such as protein, fibre, calcium, iron or vitamins.

highly processed food
A food or drink that has been changed a lot from its original form and often has added sodium, sugars or saturated fat, such as chips, candy, pop and many packaged snacks.

sodium
Part of salt. Too much sodium over time can raise blood pressure.

One meal doesn't decide your health. Patterns do.

One slice of birthday cake won't harm you, and one salad won't make you healthy. What matters for long-term health is your eating pattern: what you usually eat and drink, day after day.

The Ontario curriculum asks Grade 7 students to use what they know about the role different foods play in helping to prevent or contribute to health problems, and to use that knowledge to build healthier eating patterns. That's today's job.

Remember from earlier grades

In Grade 5 you learned to read Nutrition Facts tables and ingredient lists. In Grade 6 you learned how medical, emotional, practical and societal factors shape what you eat, and how to read your hunger, fullness and thirst cues. This year you'll look further ahead: how today's habits can affect your health many years from now.

Canada's Food Guide in one picture

Canada's Food Guide (2019) suggests a simple pattern for most meals: half the plate vegetables and fruits, a quarter whole grain foods, and a quarter protein foods (choosing plant-based protein foods like beans, lentils, tofu and nuts more often). It suggests water as the drink of choice and limiting highly processed foods.

The guide also says healthy eating is more than food: cook more often, eat with others, enjoy your food, and be mindful of your eating habits.

A plate with half vegetables and fruit, a quarter brown rice and a quarter grilled chicken and chickpeas, beside a glass of water. — This plate follows Canada's Food Guide pattern: half vegetables and fruit, a quarter whole grains and a quarter protein foods, with water to drink. AI-generated image

The Canada's Food Guide plate: half vegetables and fruits, a quarter whole grain foods, a quarter protein foods, with water to drink.

Foods that help protect, patterns that add risk

Scientists have found links between eating patterns and certain health disorders. Food is never the only factor: genes, physical activity, sleep, smoking and access to healthy food all matter too. But food is a factor you can learn to influence.

Health problem	Eating patterns that can contribute	Foods and nutrients that can help prevent it
Tooth decay (cavities)	Sipping sugary drinks or snacking on sticky sweets often through the day	Water, plain milk, vegetables; brushing and flossing
Type 2 diabetes (the body can't use insulin well, so blood sugar stays too high)	Lots of sugary drinks and highly processed foods over many years, especially with little physical activity	Vegetables, fruits, whole grains and other high-fibre foods; regular activity
High blood pressure, heart disease and stroke	Lots of sodium (salty snacks, many fast foods and packaged foods) and saturated fat over many years	Vegetables and fruits, whole grains, nuts, beans, fish; cooking at home more often
Osteoporosis (weak, breakable bones later in life)	Not getting enough calcium and vitamin D while bones are growing	Milk and fortified plant-based drinks, yogurt, cheese, canned salmon with bones, tofu made with calcium
Iron-deficiency anemia (low iron, feeling very tired)	Not getting enough iron-rich foods	Meat, fish, beans, lentils, tofu, eggs and iron-fortified cereals
Constipation	Low fibre and not enough water	Whole grains, vegetables, fruits, beans and plenty of water
Some types of cancer	Patterns low in vegetables, fruits and fibre	Vegetables, fruits, whole grains and other high-fibre foods

Examples of links between eating patterns and health. Food is one factor among many.

Why it matters now

Your teen years are a time of fast growth. Bones build up most of their strength during these years, so calcium and vitamin D are especially important. Many young people who menstruate need extra iron. And habits you build now, like drinking water instead of pop, tend to stick as you get older.

Important: Type 1 diabetes is different from type 2. Type 1 is not caused by eating habits. And no one "deserves" a health problem. This lesson is about lowering risk, never about blame.

Small swaps, big patterns

Drink: water or plain milk instead of pop, sports drinks or energy drinks.
Grains: whole grain bread, brown rice or oats instead of white versions some of the time.
Snacks: fruit, veggies and dip, yogurt or a handful of nuts (if no allergies) instead of chips or candy most days.
Fast food: choose it less often; when you do, pick a smaller size and add a vegetable.
Labels: on a Nutrition Facts table, 5% Daily Value or less is a little and 15% or more is a lot. Look for less sodium, sugars and saturated fat, and more fibre, calcium and iron.

Worked example

Let's improve an eating pattern

Here is Kai's usual school day: no breakfast; at lunch, a white bread sandwich and a can of pop; after school, chips; dinner, pasta with sauce and garlic bread; evening, a sports drink while gaming. Kai often feels tired in class.

Look for what is missing. Vegetables and fruits are almost missing. There are no whole grains, very little protein, and no calcium-rich foods.
Look for what there is a lot of. Sugary drinks (pop and a sports drink) and salty processed food (chips, garlic bread).
Connect to health. Sugary drinks are linked to tooth decay and, over many years, to type 2 diabetes. Low calcium during growth can mean weaker bones later. Skipping breakfast may explain the tiredness.
Choose realistic changes (not everything at once). 1) A quick breakfast: whole grain cereal with milk and a banana. 2) Swap the pop and sports drink for water. 3) Add veggies to dinner, like broccoli in the pasta sauce.

Three small swaps make Kai's pattern much healthier: more vegetables and fruit, more calcium, more fibre, far fewer sugary drinks. Small, realistic changes are easier to keep than big ones.

Worked example

Let's read two labels

Two crackers have these numbers per serving. Cracker A: sodium 20% DV, fibre 2% DV. Cracker B: sodium 6% DV, fibre 15% DV. Which is the better everyday choice, and why?

Recall the rule: 5% DV or less is a little; 15% DV or more is a lot.
Sodium: A has a lot (20%); B is close to a little (6%). Less sodium is better for blood pressure over time.
Fibre: B has a lot (15%); A has a little (2%). More fibre helps with digestion and is linked to lower risk of several diseases.

Cracker B is the better everyday choice: less sodium and more fibre.

The 5% / 15% rule on a line. Cracker B sits low for sodium and high for fibre, which is why it is the better everyday choice.

Hands-on activity

Three-day pattern check

You need: paper and a pencil, and your memory of the last three days (or keep a log for three days).

For each day, write what you ate and drank. No need to count calories or weigh anything.
For each meal, draw a quick circle and shade roughly how much was vegetables and fruits, whole grains and protein foods.
Tally your drinks: water, milk or fortified plant-based drink, and sugary drinks.
Circle one strength in your pattern (something you're already doing well).
Choose one realistic swap for next week and write it as a goal, for example: "I will bring a refillable water bottle to school every day next week."
With your grown-up, check in after a week. Did it work? What made it easy or hard?

What to look for: an honest log, one strength, and one specific, realistic goal. This builds motivation and perseverance (A1.3).

Just for fun

Riddle: What has ears but can't hear a thing?

Corn! (A vegetable that also counts toward half your plate.)

Your turn

What is an eating pattern?

According to Canada's Food Guide, about how much of your plate should be vegetables and fruits?

What drink does Canada's Food Guide suggest as the drink of choice?

Name one health problem linked to drinking sugary drinks often.

Which two nutrients are especially important for building strong bones during the teen years?

Name two foods high in fibre.

Is type 1 diabetes caused by eating habits?

More practice: warm-up

True or false: one unhealthy meal will make you sick.

Is this a contributing or a preventive factor for heart disease: eating lots of salty snacks every day?

Is this a contributing or a preventive factor: eating vegetables at most meals?

On a Nutrition Facts table, is 18% DV of sodium a little or a lot?

Name one iron-rich food.

More practice: on your own

Why is it important to say food is one factor, not the only one, in health problems?

Maya drinks two cans of pop a day. Suggest a realistic first step and explain why it is realistic.

Explain why calcium matters more now than it might for an adult.

Cereal A: sugars 30% DV. Cereal B: sugars 8% DV, fibre 20% DV. Which would you choose for every day, and why?

Give two habits from Canada's Food Guide that are about how you eat, not just what you eat.

Challenge

Plan one day of meals for a Grade 7 athlete who plays hockey after school. Include breakfast, lunch, a snack and dinner, and explain how your plan helps prevent at least two health problems.

A friend says, "I'm young and healthy, so what I eat doesn't matter yet." Give two reasons this isn't accurate.

A family has little money for groceries. Suggest three lower-cost ways to follow the Food Guide pattern.

Check your understanding

Quiz

What does eating pattern mean?

Canada's Food Guide suggests filling half your plate with...

Eating lots of high-sodium foods over many years is linked to...

Which nutrients are most linked to preventing osteoporosis?

On a Nutrition Facts table, 15% DV or more means...

Which is the most realistic first step for someone who drinks pop at every meal?

Which statement is accurate?

For parents and teachers

Big idea: This lesson covers the Grade 7 expectation to demonstrate the ability to develop healthier eating patterns, using information about the role that different foods play as contributing or preventive factors in a variety of health disorders (D2.1). It builds perseverance through goal setting (A1.3) and critical thinking (A1.6).

How to help at home:

Keep a refillable water bottle and cut-up vegetables or fruit easy to grab.
Let your child choose and help cook one meal a week using the plate model.
Read Nutrition Facts tables together using the 5% (a little) / 15% (a lot) rule.
Talk about health, energy and strength, not weight or appearance. Avoid calling foods "good" or "bad".

Common difficulties: Children may think one meal matters a lot, or may become anxious about food. Keep the focus on patterns and small, positive swaps. If your child seems very worried about food, restricts eating, or talks a lot about weight, speak with your family doctor. Some children may worry about a family member's diabetes or heart disease; reassure them that food is only one factor and no one is to blame.