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Forget Fad Diets: This Is What Your Body Actually Needs

This is the Diet Your Body Needs for Longevity
Pietro Karras
5 Min Read Jun. 18, 25 By Jen Wagner MD, MS & Linsly Donnelly

Food is essential not just to nourish our bodies but to create communities, culture, celebrations, and connections.

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Food is fuel, it’s memory, meaning, and medicine. It shapes our health, our energy, and our connections. But with so much nutritional noise out there (fasting! keto! macros!), it can feel impossible to know how to truly nourish yourself. We’ve dedicated our lives to teaching women what it takes to live a healthy life and we’ve learned some valuable lessons about how to fuel for longevity.

So let’s reframe the diet problem. Instead of restriction, let’s focus on savoring, choosing foods that energize your body, stabilize your hormones, and support your goals.

This Is What Your Body Actually Needs

1) Prioritize Protein (More Than You Think)

Forget the outdated myth that women don’t need much protein. In midlife and beyond, adequate protein is critical for maintaining muscle mass, supporting metabolism, and powering recovery.

Aim for 0.8–1 gram per pound of body weight daily (that’s about 100g for a 120lb woman). Many women unintentionally underfuel, especially if they’re active and it can lead to plateaus in training, fatigue, or difficulty managing weight.

2) Fuel Before You Move

If you work out in the morning, don’t skip your pre-workout fuel. Early in the day, cortisol is naturally elevated. Eating (especially a mix of protein, carbs, and fat) signals your body that it’s safe to use energy to build muscle and recover, rather than staying in a stress state.

3) Smart Supplements for Midlife Energy and Brain Health

Food comes first but targeted supplementation can help fill in gaps. Some nutrients worth exploring:

  • Creatine: Supports muscle strength and brain health (especially important post-injury or for cognitive aging)
  • Magnesium, Omega-3s, and Vitamin D, K, and C: Crucial for mood, bone health, inflammation, and cellular function.

4) Build a Longevity Plate

Whether you are meal prepping, lunching on the go, or enjoying dinner with friends, these five principles can help you eat with power and presence:

  • Protein first: Again, aim for that 0.8–1g/lb goal, choosing high-quality sources like fish, lean meat, tofu, or tempeh.
  • Nutrient-dense choices: Eat mostly whole foods to get a spectrum of vitamins, minerals, and phytonutrients.
  • Hydration matters: Add electrolytes to your water, especially in the morning (before coffee) to optimize energy.
  • Fiber up: Great for digestion, glucose stability, and long-term metabolic health.
  • Share your meals: Longevity is about building community as much as it’s about building health. Regular meals with others are a deeply nourishing (and scientifically backed) health habit.

Three Emerging Tools to Personalize Your Nutrition

Midlife nutrition is about finding what works for your body. Here are two science-backed strategies worth exploring:

  1. Continuous Glucose Monitoring (CGM)
    These small devices provide real-time feedback on how your body responds to different foods, giving you a personal metabolic roadmap.
  2. Prebiotics & Probiotics
    Support your gut health with the right balance of inputs.
    • Prebiotics (like asparagus, garlic, and artichokes) are the fertilizer.
    • Probiotics (like yogurt, kefir, and kimchi) are the seeds.
      Together, they help create a thriving internal ecosystem linked to mood, immunity, and longevity.
  3. Get Your Blood Work Done
    A full nutritional panel can highlight deficiencies, optimize your supplement stack, and help tailor your eating style for the decades ahead.

The information provided in this article is for educational and informational purposes only and is not intended as health or medical advice. Do not use this information to diagnose or treat any health condition. Always consult a qualified healthcare provider regarding any questions you may have about a medical condition or health objectives. Read our disclaimers.

[kawr-tuh-sawl] noun

A hormone that helps manage stress, energy, and alertness.

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[in-fluh-mey-shuhn] noun

Your body’s response to an illness, injury or something that doesn’t belong in your body (like germs or toxic chemicals).

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[lon-jev-i-tee] noun

Living a long life; influenced by genetics, environment, and lifestyle.

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[proh-by-ot-iks] noun

Live bacteria that promote gut and immune health.

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