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Eating for Your Blood Type: From Our Origins to How We Nourish Ourselves Today

Eating for Your Blood Type: From Our Origins to How We Nourish Ourselves Today

April 15, 2026

When I talk about health, one of the first things I share is this:

Your body is not random.

It has been shaped over time—through generations of adaptation, environment, and survival. Long before we had diet trends, nutrition labels, or conflicting health advice, the human body was learning how to thrive based on what was available.

Some populations relied more on animal protein. Others thrived on plant-based foods. Over time, the body adapted.

And even today…we carry that history within us.


Your Body Carries a Story

One of the most fascinating examples of this is your blood.

The Rh factor, for instance, is part of a genetic system shared with primates like the rhesus macaque(REE-sus muh-KAK), dating back 25–30 million years. That means parts of your biology are incredibly ancient.

As humans evolved:

  • Rh positive (Rh+) became the dominant trait and has been present for over 200,000 years
  • Rh negative (Rh−) developed later as a genetic variation, likely between 20,000–40,000 years ago

Even today:

  • About 85% of people are Rh positive
  • About 15% are Rh negative

And something I always find interesting:

  • O negative (O−) is known as the universal donor
  • AB positive (AB+) is known as the universal recipient

Why does this matter?

Because it’s a reminder that we are biologically unique—even at the level of our blood.


So Why Would We All Eat the Same Way?

This is where I encourage people to pause. We’ve been conditioned to believe there is one “right” way to eat. One plan. One formula. But in my experience, both personally and professionally, that’s simply not true.

There is no one-size-fits-all approach to health.

I’ve seen two people eat the same foods—one feels energized and clear, while the other feels bloated, tired, or inflamed.

That’s not failure. That’s your body communicating.


Understanding Bio-Individuality

This is what I mean when I talk about bio-individuality.

Each of us has a different internal environment—shaped by our genetics, lifestyle, stress levels, and yes, even our blood type.

Now, eating for your blood type is not universally accepted in conventional medicine, and I always want to be clear about that. But I have found that for many people, it offers a helpful framework. Not because it’s rigid—but because it encourages awareness.

And ultimately, my goal is not to have you follow a set of rules. It’s to help you learn your body.


Food Is Information

I often say this:

Food is not just fuel—it’s information.

Your body takes that information and processes it based on its own unique blueprint. Blood type may be one of the factors that influences how that happens, particularly when it comes to digestion, immune response, and inflammation.

So instead of asking, “What diet should I follow?” 

I encourage people to ask:

“What is my body responding to?”


Blood Type O: Supporting Strength and Stability

When I work with individuals who have Type O blood, I often see that they do well when their meals support protein intake and stable blood sugar.

Foods that tend to support Type O:

  • Grass-fed meats
  • Fish and seafood
  • Leafy greens
  • Olive oil

Neutral foods:

  • Eggs
  • Berries and apples
  • Nuts and seeds

Foods to be mindful of:

  • Gluten-containing grains (especially wheat)
  • Dairy
  • Excess legumes

Blood Type A: Nourishing with Plants and Calm

With Type A, I often notice a more sensitive system—one that responds well to a plant-forward, anti-inflammatory approach.

Foods that tend to support Type A:

  • Vegetables (especially leafy greens)
  • Whole grains like quinoa and brown rice
  • Legumes
  • Fermented foods

Neutral foods:

  • Light fish
  • Eggs (in moderation)
  • Nuts

Foods to be mindful of:

  • Red meat
  • Dairy
  • Highly processed foods

Blood Type B: Finding Balance and Flexibility

Type B tends to be more adaptable, but that doesn’t mean anything goes. It’s about finding balance and paying attention to specific triggers.

Foods that tend to support Type B:

  • Grass-fed meats
  • Dairy (often better tolerated)
  • Vegetables
  • Eggs

Neutral foods:

  • Oats and rice
  • Fruits

Foods to be mindful of:

  • Corn
  • Wheat
  • Lentils
  • Processed foods

Blood Type AB: A Blend of Sensitivity and Adaptability

Type AB is a combination of A and B, and I often see that a more moderate, intuitive approach works best here.

Foods that tend to support Type AB:

  • Seafood
  • Tofu and plant-based proteins
  • Vegetables
  • Fermented foods

Neutral foods:

  • Eggs
  • Dairy (in moderation)
  • Some grains

Foods to be mindful of:

  • Red meat
  • Processed foods
  • Excess caffeine

How to Determine Your Blood Type

If you’re not sure what your blood type is, there are a few simple ways to find out:

  • Ask your doctor—it may already be in your records
  • Donate blood through organizations like the American Red Cross
  • Use an at-home testing kit
  • Request a simple lab test

What I Always Come Back To

No matter what approach you explore, I always bring it back to this:

Your body is your greatest guide.

You don’t need more restriction.
You don’t need more confusion.

You need to:

  • Nourish your body with whole, real foods
  • Balance your blood sugar
  • Support your nervous system
  • Reduce inflammation

These are the foundations that support every person—regardless of blood type.


Final Thought

Health is not about following rules—it’s about creating alignment.

When you begin to understand that your body carries history…
that it has adapted, learned, and evolved over time…

You start to approach it differently.

With more awareness.
More intention.
And more respect.

Because your body isn’t just reacting…
it’s responding to how you choose to care for it today.

To Health & Longevity,

𝑀𝒶𝓇𝒾𝒶 𝐻𝓊𝒷𝓈𝒸𝒽𝑒𝓇