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Nutrition Sidebars

Important information as science grows.

Sidebars

The truth about protein

 

Protein Sources and Absorption

While protein is found in some carbohydrate foods (such as beans, peas, and whole grains), the most bioavailable sources are animal-based proteins like meat, poultry, fish, and dairy. Bioavailability refers to how well and how easily your body can absorb and use the protein.

  • Animal-based proteins are considered “complete proteins” because they contain all nine essential amino acids in the right amounts. They are also easier for the body to absorb.
     
  • Plant-based proteins can still provide what your body needs, but they often require variety and combination (for example, beans + rice) to make sure all essential amino acids are covered.
     

What Happens If You Don’t Get Enough Protein?

A protein deficiency can lead to:

  • Loss of muscle mass
     
  • Weak immune system (getting sick more easily)
     
  • Skin, hair, and nail problems
     
  • Fatty liver
     
  • Weak bones and a higher risk of fractures
     
  • Slower healing and fatigue
     

The Debate: Where Should Protein Come From?

The biggest debate about protein isn’t whether we need it (we definitely do)—it’s where we should get it from.

  • Supporters of meat-based diets argue that animal protein is more efficient, more complete, and more easily absorbed.
     
  • Supporters of plant-based diets argue that plant proteins can be just as effective when combined correctly, and they come with added health benefits like fiber and antioxidants.
     

The truth: Both sides have strong arguments. Meat is an important source of protein for many people, but it ultimately comes down to personal choice, health needs, and values. The key is to do your research and make informed decisions about your diet.

Sidebars

Autophagy

 

What autophagy is

  • Definition: Autophagy (pronounced “ah-TAH-fah-gee”) is a process in which cells break down and recycle old or damaged parts.
     
  • Purpose: It’s like a cellular recycling system — helping cells remove clutter, reuse useful pieces, and maintain peak performance.
     

Why it matters

  • Keeps cells healthy by:
     
    • Rebuilding worn-out components into fresh ones
       
    • Clearing out parts that don’t work
       
    • Helping fight off invading microbes
       
  • Plays a role in aging: as autophagy slows with age, “cellular junk” can build up and make cells less efficient.
     

How it works

  1. Special proteins (ATGs) create autophagosomes, bubble-like sacs that collect damaged bits.
     
  2. These sacs fuse with lysosomes (tiny “digestive” units in cells).
     
  3. Lysosomes break the material down into raw ingredients, which the cell reuses.
     

What triggers it

  • Nutrient or oxygen shortage
     
  • Cell damage
     
  • Certain stresses like fasting, calorie restriction, ketogenic diets, or vigorous exercise (but these aren’t appropriate for everyone and should be done only with medical guidance).
     

Timing

  • Animal studies suggest autophagy may begin around 24–48 hours of fasting, but the ideal timing for humans isn’t fully known.
     

Autophagy & disease

  • Proper autophagy helps prevent buildup of damaged proteins and DNA errors.
     
  • Malfunctioning autophagy has been linked to:
     
    • Neurodegenerative disorders (Parkinson’s, Huntington’s)
       
    • Diabetes, heart, liver, kidney diseases
       
    • Crohn’s disease and other inflammatory conditions
       
    • Cancer — where autophagy can sometimes suppress tumors but in other cases help cancer cells survive.
       

Key takeaway:
Autophagy is a natural repair and recycling system that keeps cells healthy and adapts them to stress. Research on exactly how to harness it safely in humans is still developing, so major lifestyle changes (fasting, extreme dieting, intense exercise) should be done only after talking to a qualified healthcare provider.

Sidebars

Restocking your House

Removing Temptation

 To restock your house for healthier eating, focus on making healthy options easy to see and access while making high-temptation foods difficult to find. Start with a kitchen-wide purge, then restock with nutrient-dense staples and organize your space strategically.  

Purge and prep your kitchen

  

  • Declutter and discard: Go through your pantry, fridge, and freezer and remove anything that is expired, stale, or highly processed. Donate unopened, non-perishable items you won't use to a food bank.
  • Move temptation out of sight: Store high-calorie snacks and treats in opaque containers in the back of your pantry or on a high, hard-to-reach shelf. Keep items like cookies, chips, and candy out of plain view to avoid impulsive grabs. (Start with this, then stop buying these things).
  • Create a visible fruit bowl: Place fresh, attractive fruit like apples, oranges, and bananas in a bowl on your kitchen counter. When you're looking for a quick snack, the healthy option will be right in front of you.
  • Prep "grab-and-go" items: Wash and chop fruits and vegetables as soon as you get home from the grocery store. Store them in clear containers in the fridge so they are an easy, ready-to-eat snack. For example, prepare pre-portioned bags of sliced peppers and carrots or hard-boiled eggs.
  • Organize for success: Use clear, airtight containers to store your healthy staples. This creates a visually appealing and organized kitchen that makes it easy to see and grab the right foods. 

Healthy pantry staples to restock

 

  • Whole grains: Items like oats, quinoa, brown rice, whole-grain pasta, and whole-wheat bread provide complex carbohydrates and fiber to keep you full longer. Store extras in the freezer to prolong shelf life.
  • Legumes: Canned or dried beans, lentils, and chickpeas are excellent sources of protein and fiber. They can be used in a variety of dishes, from soups and salads to chilis and dips.
  • Canned goods: Keep canned tuna, salmon, and chicken on hand for a quick protein boost. Stock up on low-sodium vegetables, beans, and diced tomatoes for soups and other meals.
  • Nuts, seeds, and healthy fats: Almonds, walnuts, chia seeds, and nut butters contain healthy fats and protein. Store nuts and seeds in the fridge or freezer to keep them fresh. Also, keep cooking oils like olive and avocado oil on hand.
  • Herbs and spices: A variety of spices, such as cinnamon, chili powder, and cumin, can add flavor to your meals without adding extra calories, sugar, or sodium. 

Restock your fridge and freezer

 

  • Proteins: Stock up on lean proteins such as skinless chicken breasts, fish fillets, and lean ground turkey. Eggs are another great, versatile protein source.
  • Produce: Keep a variety of long-lasting produce like carrots, cabbage, citrus fruits, and apples on hand. Frozen vegetables and fruits are also great, convenient options that are just as nutritious as fresh ones.
  • Dairy: Low-fat dairy products like Greek yogurt and low-fat cheeses can be used in many healthy recipes. 

Planning and shopping strategies

 

  • Make a list: Always go grocery shopping with a list to prevent impulse buys. Check your pantry and fridge before you go to see what you need to use up first.
  • Don't shop hungry: Shopping while hungry can lead to poor, impulsive decisions. Have a healthy snack before you go to the store to keep your focus.
  • Shop the perimeter: As a general rule, stick to the outer aisles of the grocery store, where fresh foods like produce, dairy, and lean proteins are located. Venture into the center aisles only for your specific list of healthy pantry staples.
  • Buy in bulk for staples: For items you use frequently, like oats, quinoa, or rice, buying in bulk can save you money and ensure you always have healthy options on hand.
  • Meal prep: Cooking in batches or preparing ingredients in advance saves time during the week and makes it easier to resist takeout. For example, cook a large batch of rice and roasted vegetables at the start of the week to use in different meals. 

Clean House

 When temptation is gone from the house, that craving for a sweet, highly processed, dangerous snack turns into a midnight trip to the store.

That’s when you see how strong food addiction can be—and the lengths your mind will push you to go when it’s in control.

Take back your life. Put yourself back in charge.

Fasting

 

 

Lesson: The Power of Fasting

What is Fasting?

Fasting means going without some or all food and drink for a set time.
It’s not new — cultures and religions have practiced it for centuries.

Today, people use fasting for health, energy, and even mental clarity.

Types of Fasting

  • Water Fasting → Only water for a set time.
     
  • Juice Fasting → Only fruit/vegetable juices.
     
  • Intermittent Fasting → Cycling between eating and fasting hours (ex, 16 hours fasting, 8 hours eating).
     
  • Partial Fasting → Avoiding certain foods like processed foods or caffeine.
     
  • Calorie Restriction → Eating fewer calories on certain days.
     

Health Benefits of Fasting

  1. Manages Blood Sugar
     
    • Improves insulin sensitivity.
       
    • Helps prevent diabetes.
       

  1. Fights Inflammation
     
    • Reduces harmful chronic inflammation.
       
    • Supports heart health.
       

  1. Boosts Heart Health
     
    • Lowers blood pressure, cholesterol, and triglycerides.
       

  1. Supports Brain Function
     
    • May improve memory and protect against Alzheimer’s/Parkinson’s (animal studies show strong evidence).
       

  1. Helps with Weight Loss
     
    • Naturally reduces calorie intake.
       
    • Burns fat more effectively.
       

  1. Increases Growth Hormone
     
    • Supports muscle, strength, and metabolism.
       

  1. May Extend Lifespan
     
    • Animal studies show fasting may slow aging and improve longevity.
       

  1. Potential Cancer Protection
     
    • May slow tumor growth and make treatments more effective (still under study).
       

Safety First ⚠️

  • Not for everyone (especially children, older adults, underweight individuals, or people with certain conditions).
     
  • Stay hydrated.
     
  • Eat nutrient-rich foods during eating windows.
     
  • Check with a doctor before starting, especially if you have medical conditions.
     

Quick Activity Idea for Class

👉 Discussion Question:
“What would be the hardest part about fasting for you — hunger, habits, or breaking routine?”

👉 Reflection Prompt:
“How does fasting show the difference between your body’s needs and your mind’s cravings?”

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