Know Your Garlic or Onions : Why Ayurveda calls It Medicine, Pilots Dont Eat It, and Science Loves It
In wellness circles, a bizarre contradiction is going about two of the most common ingredients in our kitchens: onions and garlic.
Ask a modern nutritionist, and they will tell you these alliums are superfoods—packed with cardiovascular benefits, potent antioxidants, and antibacterial properties.
But ask a traditional Ayurvedic practitioner or an Ashtanga yogi, and you’ll get a very different answer. In ancient eastern traditions, onions and garlic are strictly classified as Tamasic (affecting mind and spirit) and Rajasic (over-stimulating). In strict yogic diets, they are entirely banned.
There is even a pervasive internet myth that 1950s fighter pilots were grounded if they ate garlic because it "poisoned their brain waves" and destroyed their reaction times.
So, what is the truth? Are onions and garlic brain-boosting superfoods, or are they neurological toxins that dull our spiritual awareness? Let’s break down the confusion and look at what science actually says.
The Pilot Myth: Did Garlic Really Ground Flights?
Let's clear the runway on this one first. The story that the FAA or military grounded pilots for eating garlic stems from a 1996 lecture by an inventor named Dr. Robert C. Beck. He claimed garlic contained a "sulphone hydroxyl ion" that penetrated the blood-brain barrier and poisoned the brain, tripling reaction times.
The truth? It's 100% Myth. That chemical compound doesn't even exist in garlic, and no pilot has ever been grounded for neurological impairment due to it.
Pilots do, however, avoid heavy garlic and onions before flying for two very real, non-mystical reasons:
Boyle’s Law: Onions and garlic are highly fermentable in the gut (high-FODMAP). As an airplane climbs and cabin pressure drops, trapped gas in the intestines expands by up to 30%. Eating heavy garlic before a flight leads to severe bloating and gastrointestinal pain at altitude.
Social Etiquette: A cockpit is the size of a small closet. Avoiding heavy, sulfur-smelling foods is just common courtesy when you are locked in a tiny box with your co-pilot for 10 hours.
Where Ayurveda and Science Agree
While Ayurveda restricts these foods for spiritual seekers, it heavily utilizes them as medicine. Historically, Ayurveda uses garlic and onions to ignite digestive fire (Agni), clear mucus and congestion (Kapha), and improve circulation (Vata).
Modern pharmacology completely backs this up! We now know that the sulfur compounds in garlic act as potent vasodilators (lowering blood pressure) and have broad-spectrum antimicrobial properties. Onions are loaded with quercetin, a powerful antioxidant that acts as a natural antihistamine. Physically, they are phenomenal medicines.
The Tamasic Garlic/Onion: Why Did the Ancients Get the Brain Science Wrong?
If onions and garlic are so physically healing, why did ancient texts claim they dull the mind?
Science shows us that garlic and onions do not depress the central nervous system. In fact, compounds in both vegetables cross the blood-brain barrier and act as powerful neuroprotectors, actively fighting neuroinflammation and oxidative stress.
The ancient label of Tamasic is likely a simple misinterpretation. When you eat a heavy dose of raw garlic or onions, the massive vasodilation and intense gastric digestion trigger a strong parasympathetic nervous system response—the "rest and digest" phase. You get a food coma, your body feels heavy, and the intense sulfurous odors create sensory fatigue.
Ancient practitioners observed this physical crash and digestive heaviness and logically (but incorrectly) recorded it as mental and spiritual dullness. Its also very very clear that it affects mind as its strong vasodilator, which can give an uncontrollable urge of emotions to a learning mind in meditation.
The Final Takeaway
The confusion between Ayurveda and modern science comes down to context.
If you eat a massive bowl of raw onions and garlic, you will feel heavy, bloated, and lethargic—exactly as Ayurveda warns.
The verdict? Don't fear but use mindfully according to your body type. according to your sadhna (meditation). Unless you have IBS, acid reflux or high pitta onions and garlic belong in your diet. use around half to one medium size onion in a day if your body type allows it. more than that can create problems. They are scientifically proven to protect your heart, clear out bad bacteria, and keep your brain healthy.
#NutritionScience #Ayurveda #HolisticHealth #GarlicMyth #FoodAsMedicine #GutHealth #BrainHealth #Biohacking #WellnessMyths #TamasicFoods
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