Snacking is often blamed for excessive weight gain, but could some snacking actually be good for us?
Dr. Sarah Berry and Tim Spector, world-leading nutrition experts, discuss the truth behind snacking.
The podcast is the first done in real life, and the hosts are excited but not used to it.
Jonathan Wolff sets the flow for the conversation and starts with a quick fire round of questions from listeners.
Sarah Berry and Tim are asked to answer in sequence about whether most people are eating the wrong snacks.
Sarah Berry responds with 'Yes'.
Snacking is a controversial topic with a three-way split in opinions - 36% say it's healthy, 32% say it's not, and 31% are unsure.
There's no clear definition of a snack, but it's generally considered as an eating event between main meals or after dinner.
About 25% of energy in the UK and US comes from snacks, with 75% of it coming from unhealthy ultra-processed snacks.
Snacking on unhealthy snacks causes a rapid rise in blood sugar, leading to metabolic chaos and inflammation.
Unhealthy snacks lead to a roller coaster effect on blood sugar, causing increased hunger and energy intake, and making you eat more at the next meal.
Ultra-processed snacks have adverse effects on gut health, contributing to long-term problems and reducing the state of gut microbes and the immune system.
Eating frequency, snacking quality, and timing are important factors to consider when evaluating the health impact of snacking.
Historically, people were encouraged to snack more frequently, but recent data suggests that frequent snacking may not be as healthy as previously thought.
Researchers found that many people under-report what they eat, leading to inaccurate data analysis.
People who eat more frequently tend to consume more energy and have a slightly higher BMI.
Randomized control trials show no difference in weight or cardiometabolic health outcomes for those who snack on healthy foods throughout the day.
Tim Spector emphasizes the importance of healthy breakfast and longer fasting periods for better health.
Sarah Berry's research supports the idea that snacking on healthy foods throughout the day has no unfavorable effects.
Sarah Berry emphasizes the importance of snack frequency, quality, and timing. Late-night snacking has unfavorable impacts on health, leading to increased hunger and disrupting the body's natural metabolism.
Tim Spector highlights the negative effects of eating late at night and the importance of a 12-hour window of not eating overnight for the body's repair and rest. Time-restricted eating has shown improved metabolic outcomes despite consuming the same amount of energy.
Jonathan Wolff shares his personal experience with intermittent fasting, finding that he could perform well at the gym in the morning without breakfast, challenging the traditional notion of needing energy before exercise.
Population studies show that people who snack more eat more calories, but clinical trials do not confirm this.
Snacking may lead to eating less at the following meal, balancing out calorie intake over time.
Eating snacks earlier in the day, if high quality, has no unfavorable effects on health, while snacking after 9 PM is associated with unfavorable BMI and cardiovascular factors.
Snacking frequency is increasing, especially with unhealthy ultra-processed snacks.
It's important to be aware of personal biases and cultural influences when considering snacking habits.
Fruit, nuts, and vegetables are generally better snack options, but the choice within these categories is important for individual blood sugar responses.
Tim Spector emphasizes the health benefits of nuts and seeds, highlighting their protein, fiber, and nutrient content. He advises avoiding chemically treated or sugar-coated nuts.
Sarah Berry points out the significance of snacking in energy intake and suggests using it as a strategy to improve diet quality. Surprisingly, high-quality diet individuals often have poor snack choices.
The conversation delves into the impact of previous meals, protein-fiber balance, and sleep on snacking habits. Tim Spector and Sarah Berry stress the influence of food and sleep environments on snacking decisions.
Jonathan Wolff summarizes the discussion, highlighting the shift in snacking habits, the importance of snack quality, and the debate on snacking frequency. He mentions the potential for future interventional studies to provide more insights.
Jonathan Wolff introduces Zoe's personalized nutrition program, which aims to help individuals understand the right snacks for their body based on their at-home test results and the latest scientific research.
The program offers personalized nutrition recommendations, access to nutrition coaches, and scientifically backed advice for improving gut health and reducing the risk of long-term disease.
Listeners can learn more about Zoe and receive a 10% discount on their purchase by visiting joinzoe.com/podcast.