Day 10 of 100 Days Muscle Resistance Workout Challenge
Topic: Everyday foods that provide protein (animal, plant, mixed)
Learning Material
When most people think of protein, they picture steak, chicken, or eggs. But protein comes in many forms—animal-based, plant-based, and mixed sources—and understanding where it hides in everyday foods makes it easier to reach your goals. Muscles don’t care whether your protein comes from tofu or turkey; what matters is consistency and quality.
Key Insight
Animal Sources: Animal proteins (meat, fish, dairy, eggs) are considered “complete proteins” because they contain all nine essential amino acids your body can’t make on its own. They’re efficient at supporting muscle repair and growth. For example, three ounces of chicken breast have about 25 g of protein, while two eggs have around 12 g.
Plant Sources: Plant proteins (beans, lentils, tofu, tempeh, quinoa, nuts, seeds) can be just as powerful, but many are “incomplete,” meaning they lack one or more essential amino acids. The good news? Pairing different plant sources—like rice and beans, or hummus with whole-grain bread—creates a complete amino acid profile. That’s why variety is so important if you rely more on plant-based foods.
Mixed & Hidden Sources: Many foods people don’t think of as “protein-rich” still contribute. Greek yogurt, milk, oats, and even vegetables like spinach and broccoli contain smaller amounts that add up over the day. Think of these as bonus contributions—the “loose change” that rounds out your protein savings account.
Example / Story
Picture a college student trying to hit 70 g of protein in a day. Breakfast is just toast and coffee—0 g. Lunch is a salad with a little cheese—maybe 5 g. Dinner is pasta with tomato sauce—another 8 g. That’s only 13 g for the whole day, even though they ate three meals. Now imagine if they swapped the toast for eggs (12 g), added beans to the salad (10 g), and topped the pasta with chicken (25 g). Suddenly, they’re at nearly 60 g without eating more food—just different choices.
My Reflection
Since I began focusing on building more muscle, I’ve noticed something surprising—I actually started losing weight without losing muscle mass. My muscle mass still fluctuates day by day, but overall, it has stayed consistent and even slightly improved compared to last year. One important lesson I’ve learned is that what you eat matters just as much as how much you eat. Simply cutting calories isn’t enough—you also need to get enough protein to repair and sustain your muscles. Looking back, I realize I was fortunate to keep exercising steadily despite challenges with losing weight or fat. That consistency helped preserve my muscle. Now I understand the importance of eating adequate protein, spread evenly throughout the day.
Today, I learned about different protein sources and took the time to write down what kinds I’ve been consuming. While studying this, I remembered a conversation with my husband’s doctor. The doctor advised that my husband could increase his protein intake, but should get it from different sources because of his kidney condition. My husband often struggles to sustain his muscle mass due to food restrictions, but I recall how he carefully chose protein sources that worked for him. At first, these pieces of information felt disconnected, but now I see how they all fit together.
The good news is that I’m finally starting to lose fat while maintaining my muscle mass. In the past, this balance was difficult—I couldn’t diet too severely without risking muscle loss. But with the right approach, it’s beginning to work.
Here’s my protein intake for today:
- Protein Shake (Plant-based): 12.5 g
- 2 eggs (12 g) + ⅓ cup oatmeal (4 g): 16 g (Animal & Plant)
- Chicken sausage: 15 g (Animal)
- Yogurt ½ cup: 12 g (Mixed)
- Eggs (2): 12 g (Animal)
Breakdown
- Plant-Based: 16.5 g
- Animal-Based: 39 g
- Mixed: 12 g
- Total: 67.5 g
Biometric data
Change in Weight from Day 1: -3.6 lb.
Skeletal Muscle: 39.3%
Muscle Mass: 94.4 lb.
Adjustment Ideas (Strategic adjustment)
- Add one extra protein-rich snack (e.g., Greek yogurt, nuts, or edamame) between meals.
- Replace one carb-only breakfast with a protein-centered option (eggs, protein smoothie, tofu scramble).
- Try one new plant-based protein this week (lentils, tempeh, or quinoa) to diversify sources.
