Dr. Greg
@drgreghealth • 565,700 subscribers
Videos
Here are three visible signs you are eating too much sugar. I've been a functional medicine doctor for more than 25 years, and these show up on your skin long before they show up on a lab report. Sign one: dark, velvety patches of skin at the back of your neck, your armpits or your knuckles. These are called acanthosis nigricans, and it is one of the clearest visible markers of insulin resistance that exists. Your skin is showing you what your blood sugar is doing. Sign number two: new or multiplying skin tags, especially around your neck and underarms. They are strongly associated with the same elevated insulin driving the first sign, and most people treat them as cosmetic instead of as information. Sign three: premature fine lines and a loss of skin elasticity. Excess sugar binds to the collagen in your skin through a process called glycation, stiffening and damaging it faster than normal aging ever would on its own. Your skin is not vain. It is one of the most honest organs you have. And it has been trying to tell you this for a while. Have you ever had any of these three looked at? Find the root. Heal the whole.
Dr. Greg627,700 views • 5 days ago
Here are three early signs of dementia most women overlook. I've been a functional medicine doctor for more than 25 years, and memory loss is usually the last of these three to show up, not the first. This one is close to my heart. My grandma Sylvia passed away from dementia, and watching my dad's side of the family go through it is why I have spent years digging into this research. Sign one: struggling to find the right word more often than you used to, even for things you know well. This subtle language shift frequently precedes the more obvious memory symptoms people associate with dementia. Sign two: a decline in your sense of smell. Research has found that smell loss, particularly in people carrying certain genetic risk factors, can show up as an early marker tied to future cognitive decline. Almost nobody thinks to connect the two. Sign three: new apathy, or a noticeable personality shift. A loss of initiative or motivation that was not there before. Research following people with genetic risk found this kind of apathy showing up years before other symptoms were expected. By the time memory loss is obvious, this process has often been unfolding quietly for a while already. These three are worth noticing far earlier. Which of these would you have written off as just getting older? Find the root. Heal the whole.
Dr. Greg319,100 views • 6 days ago
Here are three signs your dopamine is depleted. I've been a functional medicine doctor for more than 25 years, and this gets mistaken for laziness or low willpower far more than it gets correctly identified. Sign one: you have lost motivation for things you used to genuinely enjoy. This is called anhedonia, and it is one of the clearest markers of a dopamine system that is running on empty. Sign two: you need constant stimulation just to feel normal. Your phone, sugar, scrolling. Low-level daily life does not register as rewarding anymore on its own. Sign three: a mid-afternoon crash in drive and focus, even after a full night's sleep. This is not about effort. It is your dopamine and motivation circuitry running low on fuel. This is not a character flaw. It is a chemistry problem, and chemistry problems have real, addressable solutions. Which of these three have you been calling laziness? Find the root. Heal the whole.
Dr. Greg94,600 views • 3 days ago
Here are three foods I tell every woman who comes into my practice to stop eating. I've been a functional medicine doctor for more than 25 years, and these aren't trendy eliminations. They're the three with the clearest research behind them. Food number one: Processed and deli meat. The World Health Organization classifies it as a group one carcinogen, the same hazard category as tobacco. Pooled data showed an 18 percent increase in colorectal cancer risk for every 50 grams eaten daily, roughly one hot dog or six slices of deli meat. Food number two: Added sugar, and all of its disguises. It's the single biggest driver of insulin resistance, inflammation and fatty liver I see walking through my door every day. Number three: Conventional wheat and refined gluten products. Research on zonulin, the protein that regulates the tight junctions between your gut cells, shows that gluten triggers its release, loosening those junctions and increasing intestinal permeability. For anyone with an autoimmune tendency, that's the open door the immune system needed. I'm not asking you to fear food. I'm asking you to stop eating the three things doing the most damage. Find the root. Heal the whole.
Dr. Greg1,300,000 views • 1 month ago
Here are three questions that not enough women are asking their doctors. I've been a functional medicine doctor for more than 25 years, and these three alone would catch problems years before they become diagnoses. Question one: Can you run my fasting insulin, not just my glucose? Glucose can stay completely normal for years while insulin quietly climbs in the background, and fasting insulin is almost never ordered on a standard panel. Question two: Can you check my thyroid antibodies, not just my TSH? TSH can sit in the normal range while your immune system is actively attacking your thyroid tissue underneath it. That is autoimmune thyroiditis, and antibodies are the test that actually catches it. Question three: Can you add Lp(a) and a complete hormone panel to my labs? Lp(a) is largely a genetic cardiovascular risk, so there is not a lot you can do about the number itself, but knowing it is the point. And a real hormone panel gets skipped entirely at most standard physicals. You deserve better labs, and you are allowed to ask for these by name. The worst thing that happens is your doctor says no, and you have learned something important either way. Which of those three is going on your next appointment list? Find the root. Heal the whole.
Dr. Greg65,700 views • 27 days ago
Here are three foods I tell every patient to eat to support detox. I've been a functional medicine doctor for more than 25 years, and I want to be clear upfront. Your liver and kidneys are already detoxifying you around the clock. These foods support that system. They do not replace it with a juice cleanse gimmick. Food one: cruciferous vegetables. Think broccoli, cauliflower, Brussels sprouts. These contain something called sulforaphane, a compound that directly supports your liver's phase two detox pathway, the step that actually neutralizes and clears toxins. Food two: garlic and onions. Their sulfur compounds are direct building blocks for glutathione, your body's master antioxidant and one of its primary detox molecules. Some people cannot process these well because of histamine, and there are other options in that case. Food three: fiber-rich foods across the board. Fiber binds to bile, which carries processed toxins out of your body. Without enough of it, some of what your liver worked to neutralize gets quietly reabsorbed instead of eliminated. Real detox is not a weekend cleanse. It is feeding the system that has been doing this work for you every single day. Which of these three is already on your plate? Find the root. Heal the whole.
Dr. Greg10,400 views • 4 days ago
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