Merina Nutrition

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Nutrition research, wellness tips, and practical guides for women over 40.

Article

The Old Rule: Complete Proteins Required

For decades, we've been told that plant-based eaters must carefully combine proteins at every meal to create "complete" proteins. Rice and beans together. Peanut butter with whole wheat bread. Hummus...

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What is Leucine?

You're eating 100 grams of protein per day. You're tracking every meal. You're doing everything right. But your muscles are still shrinking. Why? Because you're missing the leucine threshold - and...

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The Protein Paradox

If you're eating plenty of protein but still losing muscle, the problem might not be how MUCH you're eating - it might be WHAT you're eating. Because here's something most women don't know: Not all...

The Plant Protein Advantage for Heart Health
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The Plant Protein Advantage for Heart Health

Let's wrap up Heart Health Week with something empowering: You don't need to go fully vegetarian to gain heart protection from plant proteins. Research shows that simply substituting plant proteins...

How Protein Protects Your Heart During Menopause
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How Protein Protects Your Heart During Menopause

If you're a woman over 40, here's a number you need to know: 22%. That's how much lower your heart disease risk is when you consume adequate protein - at least 1.2 grams per kilogram of body weight...

Complete vs Incomplete Proteins - Do You Need to Worry?
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Complete vs Incomplete Proteins - Do You Need to Worry?

If you've ever tried to eat more plant-based, you've probably heard that you need to "combine proteins" to get complete nutrition. Rice and beans. Peanut butter and bread. Lentils and quinoa. But is...

The Leucine Threshold - Why 2.5g Per Meal Matters
Article

The Leucine Threshold - Why 2.5g Per Meal Matters

You've probably heard you need 25-30g of protein per meal. But here's what most people don't explain: WHY that specific number? The answer lies in a single amino acid called leucine, and...

Can You Build Muscle on Plant-Based Protein?
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Can You Build Muscle on Plant-Based Protein?

If you're considering eating more plant-based but worried about muscle loss during menopause, you're asking the right question. The answer from research is nuanced but encouraging: yes, you CAN build...

Protein Quality 101 - Why DIAAS Scores Matter
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Protein Quality 101 - Why DIAAS Scores Matter

You've probably heard that you need to eat more protein. But here's what nobody's telling you: not all protein is created equal. The protein in a chicken breast works differently in your body than...