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The Gradient Podcast - Vivek Natarajan: Towards Biomedical AI [b01db6]
2025-09-16

How to Stabilize Blood Sugar and Avoid the Afternoon Crash

Experiencing an afternoon crash? Feeling that sudden dip in energy and focus? Chances are, your blood sugar is to blame. Fluctuations in blood sugar levels can lead to a roller coaster of energy, mood swings, and even cravings. Luckily, with a few simple strategies, you can stabilize your blood sugar, maintain consistent energy, and conquer that afternoon slump.

Understanding Blood Sugar and Its Impact

Before diving into drinking and low blood sugar solutions, it's crucial to understand what blood sugar is and how it affects you. Blood sugar, or glucose, is your body's primary source of energy. When you eat, your body breaks down carbohydrates into glucose, which then enters your bloodstream. Insulin, a hormone produced by the pancreas, helps glucose move from the blood into your cells to be used for energy.

However, consuming foods high in refined carbohydrates and sugar can cause a rapid spike in blood sugar, followed by a sharp drop, leading to that dreaded afternoon crash. This cycle can also contribute to insulin resistance over time, potentially increasing the risk of type 2 diabetes.

Strategies to Stabilize Your Blood Sugar

Here's a breakdown of practical strategies you can implement to stabilize blood sugar and keep your energy levels consistent throughout the day:

  1. Prioritize a Balanced Breakfast: Start your day with a breakfast that combines protein, healthy fats, and complex carbohydrates.
    • Examples: Oatmeal with nuts and berries, Greek yogurt with seeds and fruit, scrambled eggs with whole-wheat toast and avocado.
    • Why it works: Protein and fats slow down the absorption of carbohydrates, preventing a rapid blood sugar spike.
  2. Choose Complex Carbohydrates Over Simple Sugars: Opt for foods like whole grains, legumes, and non-starchy vegetables, which are digested more slowly and provide a steady release of glucose into the bloodstream.
    • Avoid: White bread, sugary cereals, pastries, and sweetened beverages.
  3. Incorporate Protein and Healthy Fats into Every Meal: Protein and fats not only contribute to satiety but also help stabilize blood sugar levels.
    • Good Sources: Lean meats, poultry, fish, eggs, nuts, seeds, avocados, and olive oil.
  4. Eat Regular, Balanced Meals and Snacks: Skipping meals or going too long without eating can lead to significant blood sugar fluctuations. Aim for regular meals and snacks spaced throughout the day to keep your energy levels stable.
    • Snack Ideas: A handful of almonds, a piece of fruit with cheese, or a small container of yogurt.
  5. Be Mindful of Portion Sizes: Overeating, especially carbohydrates, can overload your system and lead to blood sugar spikes. Practice mindful eating and pay attention to your body's hunger cues.
  6. Stay Hydrated: Dehydration can affect blood sugar levels. Drink plenty of water throughout the day to support optimal hydration and overall metabolic function.
  7. Manage Stress: Stress can raise blood sugar by triggering the release of hormones like cortisol. Practice stress-reducing techniques such as meditation, yoga, or spending time in nature.
  8. Get Enough Sleep: Insufficient sleep can impair insulin sensitivity and lead to blood sugar imbalances. Aim for 7-9 hours of quality sleep each night.
  9. Regular Exercise: Physical activity increases insulin sensitivity, allowing your cells to use glucose more effectively. Aim for at least 30 minutes of moderate-intensity exercise most days of the week.

Foods That Promote Stable Blood Sugar

Here's a list of foods that can help you stabilize blood sugar and avoid those energy crashes:

  • Non-Starchy Vegetables: Broccoli, spinach, kale, bell peppers, cucumbers.
  • Whole Grains: Oats, quinoa, brown rice, whole-wheat bread.
  • Legumes: Beans, lentils, chickpeas.
  • Nuts and Seeds: Almonds, walnuts, chia seeds, flaxseeds.
  • Fruits (in moderation): Berries, apples, pears, citrus fruits.
  • Lean Proteins: Chicken, fish, tofu, eggs.
  • Healthy Fats: Avocado, olive oil, nuts, seeds.

The Importance of Fiber

Fiber plays a critical role in stabilizing blood sugar. Soluble fiber, in particular, slows down the absorption of glucose in the digestive tract, preventing rapid spikes in blood sugar levels.

  • Good Sources of Fiber: Oats, beans, lentils, fruits, and vegetables.

Key Nutrients That Support Blood Sugar Control

Several nutrients play a crucial role in blood sugar regulation. Incorporating foods rich in these nutrients can contribute to improved blood sugar control.

how to get your blood sugar uphigh blood sugar without eating
Nutrient Benefits Food Sources
Magnesium Improves insulin sensitivity and glucose metabolism. Spinach, almonds, avocados, dark chocolate.
Chromium Enhances insulin's action and helps regulate **blood sugar levels**. Broccoli, whole grains, brewer's yeast.
Zinc Supports insulin production and function. Oysters, beef, pumpkin seeds.
Omega-3 Fatty Acids Improve insulin sensitivity and reduce inflammation. Fatty fish (salmon, mackerel), flaxseeds, chia seeds, walnuts.

When to Consult a Healthcare Professional

While these strategies can be effective for many people, it's blood sugar index scale important to consult a healthcare professional or registered dietitian if you have concerns about your blood sugar levels, especially if you have diabetes or other health conditions. They can provide personalized advice and recommendations based on your individual needs. If you experience frequent or severe symptoms related to blood sugar fluctuations, seek medical attention.

Long-Term Benefits of Stabilizing Blood Sugar

Adopting these strategies for stabilizing blood sugar isn't just about avoiding the afternoon crash. It's about investing in your long-term health and well-being. The benefits include:

  • Consistent Energy Levels: Say goodbye to energy roller coasters and enjoy sustained energy throughout the day.
  • Improved Mood and Focus: Stable blood sugar levels contribute to a more balanced mood and enhanced cognitive function.
  • Reduced Cravings: Avoid those intense sugar cravings that often lead to unhealthy food choices.
  • Weight Management: Stabilizing blood sugar can support healthy weight management by reducing cravings and promoting satiety.
  • Lower Risk of Chronic Diseases: Maintaining stable blood sugar levels can reduce the risk of developing type 2 diabetes, heart disease, and other chronic conditions.

By implementing these strategies and making conscious food choices, you can effectively stabilize your blood sugar, conquer the afternoon crash, and enjoy a healthier, more energetic life. Remember to be patient with yourself and make gradual changes that you can sustain over the long term.

Episode 126 I spoke with Vivek Natarajan ( about: * Improving access to medical knowledge with AI * How an LLM for medicine should behave * Aspects of training Med-PaLM and AMIE * How to facilitate appropriate amounts of trust in users of medical AI systems Vivek Natarajan is a Research Scientist at Google Health AI advancing biomedical AI to help scale world class healthcare to everyone. Vivek is particularly interested in building large language models and multimodal foundation models for biomedical applications and leads the Google Brain moonshot behind Med-PaLM, Google's flagship medical large language model. Med-PaLM has been featured in The Scientific American, The Economist, STAT News, CNBC, Forbes, New Scientist among others. I spend a lot of time on this podcast—if you like my work, you can support me on Patreon ( :) Reach me at [email protected] for feedback, ideas, guest suggestions. Subscribe to The Gradient Podcast: Apple Podcasts ( | Spotify ( | Pocket Casts ( | RSS ( The Gradient on Twitter ( Outline: * (00:00) Intro * (00:35) The concept of an “AI doctor” * (06:54) Accessibility to medical expertise * (10:31) Enabling doctors to do better/different work * (14:35) Med-PaLM * (15:30) Instruction tuning, desirable traits in LLMs for medicine * (23:41) Axes for evaluation of medical QA systems * (30:03) Medical LLMs and scientific consensus * (35:32) Demographic data and patient interventions * (40:14) Data contamination in Med-PaLM * (42:45) Grounded claims about capabilities * (45:48) Building trust * (50:54) Genetic Discovery enabled by a LLM * (51:33) Novel hypotheses in genetic discovery * (57:10) Levels of abstraction for hypotheses * (1:01:10) Directions for continued progress * (1:03:05) Conversational Diagnostic AI * (1:03:30) Objective Structures Clinical Examination as an evaluative framework * (1:09:08) Relative importance of different types of data * (1:13:52) Self-play — conversational dispositions and handling patients * (1:16:41) Chain of reasoning and information retention * (1:20:00) Performance in different areas of medical expertise * (1:22:35) Towards accurate differential diagnosis * (1:31:40) Feedback mechanisms and expertise, disagreement among clinicians * (1:35:26) Studying trust, user interfaces * (1:38:08) Self-trust in using medical AI models * (1:41:39) UI for medical AI systems * (1:43:50) Model reasoning in complex scenarios * (1:46:33) Prompting * (1:48:41) Future outlooks * (1:54:53) Outro Links: * Vivek’s Twitter ( and homepage ( * Papers * Towards Expert-Level Medical Question Answering with LLMs ( (2023) * LLMs encode clinical knowledge ( (2023) * Towards Generalist Biomedical AI ( (2024) * AMIE ( * Genetic Discovery enabled by a LLM ( (2023) Get full access to The Gradient at thegradientpub.substack.com/subscribe ( Episode link: (video made with
The Gradient Podcast - Vivek Natarajan: Towards Biomedical AI
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