The Truth About Fats
- Coach Mack
- Jan 22
- 3 min read
Fats. Few words in the world of nutrition provoke as much debate and confusion. Are they good? Are they bad? Should we avoid them entirely or embrace them wholeheartedly? As a functional nutrition coach, my goal is to guide you through the noise and deliver the facts (pun intended) about fats so you can make informed decisions for your health.

Understanding Fats: The Basics
Fats are one of the three essential macronutrients, alongside carbohydrates and proteins. They are crucial for energy production, hormone regulation, brain function, and the absorption of fat-soluble vitamins (A, D, E, and K). However, not all fats are created equal. To understand their role in our diet, we need to dive into the different types of fats:
Saturated Fats: Found in animal products (like butter, cheese, and meat) and some tropical oils (like coconut and palm oil), saturated fats have long been demonized as a cause of heart disease. However, newer research shows that in moderation, they can be a healthy part of a balanced diet. The key is quality—grass-fed and pasture-raised sources are preferable.
Monounsaturated Fats (MUFAs): These are the heart-healthy fats found in avocados, olive oil, nuts, and seeds. MUFAs are known to support cardiovascular health, reduce inflammation, and improve cholesterol profiles.
Polyunsaturated Fats (PUFAs): This group includes omega-3 and omega-6 fatty acids. Omega-3s, found in fatty fish, flaxseeds, and walnuts, are anti-inflammatory and essential for brain health. Omega-6s, while necessary in small amounts, are often overconsumed in the form of processed vegetable oils, which can promote inflammation when not balanced with omega-3s.
Trans Fats: These are the industrially-produced fats found in many processed foods and margarine. Trans fats are unequivocally harmful and linked to heart disease, inflammation, and insulin resistance. Avoid them at all costs.
Why We Need Fats
From a functional nutrition perspective, fats are not the enemy; they’re essential allies. Here are some reasons why your body loves fats:
Energy Source: Fats provide a concentrated source of energy, delivering more than twice the calories per gram compared to carbs or protein.
Cell Membrane Health: Every cell in your body is surrounded by a membrane made primarily of fats. The types of fats you eat directly influence the flexibility and integrity of your cell membranes.
Hormone Production: Fats are the building blocks for key hormones, including sex hormones like estrogen and testosterone.
Brain Health: Your brain is about 60% fat, and consuming healthy fats supports cognition, memory, and mood regulation.
Nutrient Absorption: Without dietary fat, your body can't properly absorb fat-soluble vitamins, which are critical for immune function, bone health, and more.
Rethinking Low-Fat Diets
For decades, low-fat diets were touted as the gold standard for weight loss and heart health. But the truth is, these diets often replace fat with refined carbs and sugars, leading to blood sugar spikes, cravings, and ultimately weight gain. Studies have shown that balanced diets including healthy fats can actually support weight management and overall health.
Practical Tips for Choosing Healthy Fats
To incorporate fats into your diet in a functional and health-promoting way, consider these tips:
Emphasize Whole Foods: Prioritize natural sources of fats, such as avocados, nuts, seeds, fatty fish, and extra virgin olive oil.
Choose Quality Over Quantity: Opt for organic, pasture-raised, and wild-caught sources of fat whenever possible.
Cook with the Right Oils: Use stable fats like coconut oil, ghee, beef tallow, or avocado oil for high-heat cooking, and reserve delicate oils like olive oil for low-heat cooking or drizzling.
Balance Your Omega-3 and Omega-6 Intake: Include omega-3-rich foods like salmon and chia seeds, while minimizing processed vegetable oils and fried foods.
Avoid Trans Fats: Read labels carefully and steer clear of hydrogenated or partially hydrogenated oils.
Final Thoughts
Fats are an essential part of a healthy, balanced diet. When chosen wisely, they support everything from brain health to hormone balance to glowing skin. As a functional nutrition coach, I encourage you to embrace the right kinds of fats and let go of the outdated fear that all fats are bad. By doing so, you’ll be fueling your body with the nourishment it needs to thrive.
Remember, nutrition is not about rigid rules but about finding what works best for your unique body. If you’re ready to explore how fats (and other nutrients) can support your health goals, let’s start the journey together!
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