While the common cold may be considered an inconvenient annoyance, Influenza and other viruses can keep you in bed for a week, with symptoms including high fever, sore throat, coughing and muscle aches...
And the residual fatigue and coughing can last for weeks.
Getting enough vitamin D, washing your hands frequently, exercise, intermittent fasting, quality sleep and a nutrient-dense diet are all important strategies to keep your immune system strong and prepared.
However, research shows there is another way you can boost your immunity and help prevent illness…
How Sugar Throttles Down Your Immune System
Consuming excess sugar is one of the primary threats to your immune system.
This was clearly proven in a study, published in the American Journal of Clinical Nutrition nearly 50 years ago.
Blood was drawn from subjects before and after consuming a large dose of sugar. The blood samples were then placed in a petri dish and inoculated with a strain of bacteria.
The researchers discovered that white blood cells, called neutrophils, were significantly less aggressive in attacking and engulfing the bacteria in the blood samples taken AFTER consuming sugar. The researchers noted that this demonstrated a down-throttling of the immune system, caused by sugar.
And what’s more, the hindered immune response lasted at least five hours – creating a window of opportunity for pathogens to take hold. It should also be noted that the researchers found that 36-60 hours of fasting significantly increased the activity and effectiveness of the neutrophils.
In a similar finding, researchers at Case Western University discovered that high blood sugar unleashes destructive molecules, called dicarbonyls, that interfere with the body's natural antimicrobial and infection-control defenses.
These harmful molecules impair your ability to control inflammation and fight infection. And they are among the primary byproducts of glucose and fructose metabolism.
Given the direct correlation between sugar consumption and impaired immunity, it should come as no surprise that the ketogenic diet – a way of eating that’s exceptionally low in sugar – would provide a distinct advantage to your immune system.
And that’s exactly what a new study has shown…
The Keto Diet: Boost Your Immunity
The keto diet is wildly popular for good reason – because it works!
When your body adapts to the metabolic state of ketosis, between-meal hunger and cravings vanish. Fat loss accelerates. Your energy surges. Mental clarity and focus improve. And your risk for nearly every chronic illness diminishes.
It’s no wonder why millions of people worldwide now follow some version of a diet that is very low in carbohydrates and rich in healthy fats and protein.
And now there is a study showing that this popular and healthy way of eating could also help fight and prevent illness.
In a recent Yale study, researchers found that mice fed a ketogenic diet were better able to combat the flu virus than mice fed a diet rich in carbohydrates. The researchers discovered that the keto diet specifically activates a powerful subset of T cells in the lungs, which enhance mucus production and effectively trap the virus.
This led to better outcomes and higher survival rates. On a standard carbohydrate-rich diet, these important immune cells were not activated.
The lead researcher, Dr Vishwa Dixit, DVM, Ph.D., had this to say about the results:
"This study shows that the way the body burns fat to produce ketone bodies from the food we eat can fuel the immune system to fight flu infection."
Guard Your Family Against Viruses Naturally
You can do a lot to protect the integrity of your immune system and help ward off illnesses, by following an ancestral, low-sugar or ketogenic diet.
In addition, here are my favorite immune-boosting strategies and supplements to have on hand.
- Intermittent Fasting – 18 hours of fasting with 6 hour eating window is my preferred method. Work with your body to find what works best for you.
- Infrared Sauna – Raises core body temperature, helps to boost the immune system and kill invading organisms
- Vitamin D3 + K2 – Of course, sun exposure should be your number-one source of vitamin D. But when that's not possible, this is an essential combination (consider higher-dose pulses rather than everyday use).
- Astragalus – A powerful “adaptogen” that helps to modulate the immune system
- Liposomal Vitamin C – Effective at killing viruses, bacteria and fungi
- Zinc Picolinate – Powerful immune support, anti-viral
- Elderberry – Purchase berries and make tea; avoid high-sugar elderberry syrups
- N-acetyl cysteine (NAC) – Powerful cellular detoxifier that thins secretions and helps relieve chest and sinus congestion
- Increase Hydration – Drink filtered water and consider adding a natural electrolyte powder or mineral-rich sea salt to keep vital salts in balance
Finally, it's important to be very proactive during the first signs of illness (the “prodromal period”). This can help to shorten the duration or reduce the virulence of the cold, flu and other viruses.
The moment you feel the first “tickle” in your throat or twitch in your nose, begin boosting your immune system with the strategies listed above.
To Your Health,
Kelley Herring
Healing Gourmet
REFERENCES
Albert Sanchez, J. L. Reeser, H. S. Lau, P. Y. Yahiku, R. E. Willard, P. J. McMillan, S. Y. Cho, A. R. Magie, U. D. Register, Role of sugars in human neutrophilic phagocytosis, The American Journal of Clinical Nutrition, Volume 26, Issue 11, November 1973, Pages 1180–1184
Janna G. Kiselar, Xiaowei Wang, George R. Dubyak, Caroline El Sanadi, Santosh K. Ghosh, Kathleen Lundberg, Wesley M. Williams. Modification of β-Defensin-2 by Dicarbonyls Methylglyoxal and Glyoxal Inhibits Antibacterial and Chemotactic Function In Vitro. PLOS ONE, 2015; 10 (8)
Pilch W1, Pokora I2, Szyguła Z1, Pałka T1, Pilch P3, Cisoń T1, Malik L3, Wiecha S4. Effect of a single finnish sauna session on white blood cell profile and cortisol levels in athletes and non-athletes. J Hum Kinet. 2013 Dec 31;39:127-35. doi: 10.2478/hukin-2013-0075. eCollection 2013 Dec 18.
Laukkanen JA1, Laukkanen T2, Kunutsor SK3.Cardiovascular and Other Health Benefits of Sauna Bathing: A Review of the Evidence. Mayo Clin Proc. 2018 Aug;93(8):1111-1121.
Emily L. Goldberg, Ryan D. Molony, Eriko Kudo, Sviatoslav Sidorov, Yong Kong, Vishwa Deep Dixit, Akiko Iwasaki. Ketogenic diet activates protective γδ T cell responses against influenza virus infection. Science Immunology, 2019; 4 (41): eaav2026
