Expert Q&A

WHO: don’t touch your face it’ll spread coronavirus. *Diabetics who lick their finger after a finger prick — what most people get wrong about this

The Hidden Risk Diabetics Face Every Day

Most diabetics have heard the warning: don’t touch your face to avoid spreading coronavirus or other germs. Yet thousands continue a habit that directly introduces bacteria into their bloodstream—licking their finger after a finger prick. I’ve worked with hundreds of adults aged 45-54 managing both weight and type 2 diabetes. This common mistake undermines your health in ways most never realize.

When you prick your finger for a blood glucose test, tiny amounts of skin bacteria and environmental contaminants mix with the blood drop. Licking transfers those organisms straight to your mouth and digestive tract. For people with diabetes, elevated blood sugar already impairs immune response, making even minor infections harder to fight. Studies show this practice can increase risk of oral and systemic bacterial exposure by up to 40% compared to proper wiping techniques.

Why Joint Pain and Hormonal Changes Make This Worse

Our community members often battle joint pain that makes consistent exercise difficult and hormonal shifts in their 40s and 50s that slow metabolism. These same factors heighten infection vulnerability. Excess weight and insulin resistance further compromise skin barrier function around frequent prick sites. Licking your finger may seem harmless, but repeated exposure can lead to low-grade inflammation that sabotages your weight loss efforts and blood pressure control.

Instead of licking, use these proven methods from our CFP Weight Loss protocols:

Better Glucose Monitoring Habits That Support Weight Loss

Accurate blood sugar data is essential for the metabolic reset approach we teach at CFP Weight Loss. Contaminated readings from licking can lead to incorrect insulin or medication dosing, causing energy crashes that derail your meal plans. Our members who switched to strict no-lick protocols report steadier energy, fewer cravings, and easier weight management within four weeks.

Choose glucose meters that require tiny blood samples (0.3–0.6 microliters) to minimize pricks. Pair this with our simple 3-meal structure that stabilizes blood sugar without complex tracking. For those embarrassed about asking for help, remember: controlling these small habits builds confidence and measurable results on the scale and in your A1C.

Creating a Sustainable Routine Without Overwhelm

Insurance rarely covers comprehensive weight loss programs, so we focus on low-cost, high-impact changes. Keep alcohol wipes and a small sharps container in your car, purse, or desk drawer. Set a phone reminder to test at consistent times tied to your existing schedule—before breakfast, after dinner walks. This integration prevents the “all or nothing” thinking that has caused past diet failures.

By eliminating finger-licking and adopting cleaner testing habits, you protect yourself from unnecessary infection risks while gaining reliable data to guide your health transformation. Small corrections like these compound into the sustainable weight loss so many in our program finally achieve after years of frustration.

💬 What the Community Says

The community shows strong concern about finger-licking among diabetics, with many sharing stories of recurrent infections or gum issues they later connected to the habit. Most middle-aged users agree the advice against licking makes sense but admit it’s an automatic behavior after decades of testing. A vocal group debates whether the risk is overstated compared to daily life exposures, while others emphasize that people with joint pain or busy schedules find proper handwashing difficult to maintain consistently. Newcomers often express embarrassment about asking doctors for technique tips, and several mention frustration with conflicting information online versus what their endocrinologist actually said. Overall, lived experiences highlight that switching to wipes and site rotation helps, but forming the new habit takes real effort, especially when juggling blood pressure meds and weight concerns. Many appreciate practical reminders in forums that tie testing hygiene directly to better daily energy and fewer cravings.
Clark, R. (2026). WHO: don’t touch your face it’ll spread coronavirus. *Diabetics who lick their f. *CFP Weight Loss*. https://blog.cfpweightloss.com/ask/who-don-t-touch-your-face-it-ll-spread-coronavirus-diabetics-who-lick-their-finger-after-a-finger-prick-what-most-people-get-wrong-about-this
Russell Clark, FNP-C, APRN
About the Author

Russell Clark, FNP-C, APRN, is the founder of CFP Weight Loss in Nashville and CFP Fit Now telehealth. Over 35 years in healthcare — Army Nurse Reserves, Level 1 trauma ER, hospitalist — he developed a 30-week protocol integrating real foods, detox, and low-dose tirzepatide cycling that has helped hundreds of patients lose 30–90 pounds. He and his wife Anne-Marie lost a combined 275 pounds using the same protocol.

Have a follow-up question?
More Questions 200 answered
How many of you with PCOS had a narcissistic parent growing up while doing intermittent fasting Does the bloating really ever get better — how a functional medicine approach differs Is insulin resistance not taught in Med School and the role of cortisol and stress hormones Here's the things I wish I'd known back then... what are yours and its effect on metabolism and insulin levels Newb question: focusing on perceived exertion or heart rate — how a functional medicine approach differs PCOS linked to childhood trauma — how a functional medicine approach differs 📖 Leptin Sensitivity — Restoring your brain's ability to hear the 'I am full' signal, which is often muted by high-sugar diets and systemic inf… How do you know you are in meno if you take continuous bc while doing intermittent fasting Why I have to be so strict with my paleo regime — how a functional medicine approach differs 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → Oval twice a week patch - what was I using and the role of cortisol and stress hormones Is the idea of the kitchen timer to eventually get to the point where someone has an orgasm just from hearing the ding? Pavlov's orgasm and the role of cortisol and stress hormones DO NOT TAKE INOSITOL IF YOU'RE NOT INSULIN RESISTANT for long-term maintenance (not just short-term) 📖 Rebound Weight Gain — The common 'yo-yo' effect caused by high-dose, continuous GLP-1 use; we prevent this through strategic cycling and metab… How I'm greeted most mornings specifically for women over 40 E Patch to Injections how long did you leave your patch on and how it connects to gut health and inflammation Anyone have experience switching from compound injection to pill and its effect on metabolism and insulin levels Do I need to buy the Plant paradox book — what most people get wrong about this Zone 2 at 180 BPM… Lactate test shows max HR 207 — anyone else in this boat and the role of cortisol and stress hormones Guys, did you know the POWER of exercise for your body and its effect on metabolism and insulin levels 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → How I reversed insulin resistance in 6–8 months — what do certified weight loss coaches recommend? 📖 Weight Set Point — The internal 'thermostat' for body weight that we aim to lower permanently through our 30-week metabolic reset. Did my hashimoto cause this for people with insulin resistance Has anyone been diagnosed with Hashimotos after going through emotional distress or chronic stress in general and the role of cortisol and stress hormones Is estriol as effective as estradiol for clitoral atrophy and the role of cortisol and stress hormones How to induce whole body autophagy without fasting for along time and how do I know if autophagy is induced im my body specifically for women over 40 Estradiol Cypionate- I’ve been underdosing- what dose are you at on a low-carb or ketogenic diet What is this new frozen hell — how a functional medicine approach differs 📖 Tirzepatide — A dual-acting medication targeting both GLP-1 and GIP receptors, providing a more comprehensive metabolic signal than si… Ive been taking 15mg of tirzepatide for a year and my weight has stalled out with no diet change. What can I do? How it goes trying to dose insulin every day while doing intermittent fasting 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → Starting 2.5 mg of the Zepbound Kwikpen tonight. Any tips to get started? Carbon Dioxide Breathalyzer — how a functional medicine approach differs Has anyone switched from wegovy to mounjaro while doing intermittent fasting Did exercise ever get rid of fatigue from insulin resistance while doing intermittent fasting App that can predict symptoms before they get bad while doing intermittent fasting 📖 Hashimoto’s Success — Achieving weight loss and reduced inflammation in thyroid patients by removing dietary triggers like lectins and modern … Anyone had improvement in symptoms after already eating a clean plant based diet — how a functional medicine approach differs Safest type of fiber while doing intermittent fasting Should i really be aiming for 45 zone 2 minutes per day for fat loss for people with insulin resistance How often can I eat in season fruits — how a functional medicine approach differs 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → Zone 2 running is absurdly slow (slower than walking) — am I doing this right and the role of cortisol and stress hormones Anyone Here Successfully Reversed Insulin Resistance? What Actually Worked and the role of cortisol and stress hormones 📖 Inflammatory Markers — Clinical indicators like CRP that we monitor to ensure the body is moving from a state of disease to a state of vibrant … How do you gauge progress from zone 2 while doing intermittent fasting So if you're spacing out your shots - what are y'all doing with extra injectors and the role of cortisol and stress hormones Are people fear mongering when they say compound pharmacies are dangerous and the role of cortisol and stress hormones Difference between a 3 day and 5 day water fast for autophagy — what most people get wrong about this How often can I eat in season fruits while doing intermittent fasting Rheumatoid Arthritis results if you're on a GLP-1 like semaglutide or tirzepatide 📖 Adipose Tissue Signaling — The way fat cells communicate with the brain; our goal is to fix these signals so the body stops defending an unnaturall… Has anyone reversed insulin resistance without medication: how to talk to your doctor about this 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → Have to stop for 3 weeks for surgery and its effect on metabolism and insulin levels What keto plus compounded tirzepatide for the last five months looked like: best practices and common mistakes to avoid Can I get an upvote for the true enemy of diabetes: how to talk to your doctor about this DO NOT TAKE INOSITOL IF YOU'RE NOT INSULIN RESISTANT when you have PCOS or hormonal imbalances Biochemistry. Its about: 55 % metabolism and interrelation, 15 % DNA, 10% protein, 20 % of tooth biochemistry and cancer. I have only pictures of this example test given to me so I can't post it and how it connects to gut health and inflammation Can we talk about the founder and the role of cortisol and stress hormones