March 2024 - Rob Hobson

Is intermittent fasting for you and what does the research say?

29Mar29th March 2024 By Rob Hobson

Intermittent fasting has taken the health and wellness world by storm, promising benefits from enhanced weight loss to improved blood markers associated with chronic diseases. However, as a nutritionist, it’s crucial to dive deeper into these claims, understand the nuances of fasting, and address recent concerns raised by emerging research.

Understanding Intermittent Fasting and Its Popularity

Intermittent fasting isn’t just a diet trend; it’s a lifestyle choice that involves cycling between periods of eating and fasting. The 16:8 method, where individuals fast for 16 hours and eat within an 8-hour window, is among the most popular due to its simplicity and the freedom it offers in choosing an eating window. Proponents have experienced short-term improvements in blood pressure, blood glucose, and cholesterol levels, pointing to a decreased risk of heart and vascular diseases.

The Controversial Study: A Closer Look

A study presented at a U.S. conference has stirred debate by suggesting that restricting eating to less than eight hours a day could nearly double the risk of death from heart and circulatory diseases. For those with pre-existing conditions, the risk reportedly increased by 66%. It’s important to note that this study, which observed participants over an average of eight years, is yet to undergo peer review and was based on self-reported eating habits over just two days.

Analysing the Study’s Findings

This research raises critical questions about the long-term safety of intermittent fasting, especially with stricter eating windows. However, several factors warrant consideration before drawing conclusions:

Observational Nature: The study can only suggest associations, not cause and effect.
Short Data Collection Period: Reliance on two days of dietary recall doesn’t guarantee accuracy over the long term.
Need for Peer Review: The findings have not been scrutinized by the wider scientific community, which is crucial for validating research.

Who Should Consider Intermittent Fasting?

Intermittent fasting can suit various lifestyles, from the busy parent who naturally skips breakfast to the office worker who prefers a structured eating schedule. Yet, it’s not a one-size-fits-all solution. The most potential benefits are weight loss and improved insulin sensitivity but research has suggested other areas such as reduced oxidative stress, and potentially lower risk for neurodegenerative diseases which make it appealing to some. However, the approach requires thoughtful meal planning during eating windows to ensure nutritional adequacy.

Who Should Avoid Fasting?

Certain individuals should proceed with caution or avoid intermittent fasting altogether:

Pregnant or Breastfeeding Women: Nutritional needs are higher during these periods.
Children and teenagers: These groups have need to ensure good nutritional intake for growth and some are more susceptible to disordered eating.
Individuals with a History of Eating Disorders: Fasting can potentially trigger or exacerbate disordered eating patterns.
Those with Certain Medical Conditions: People with diabetes, low blood pressure, or those taking medications that require food intake should consult healthcare providers.

Psychological Considerations

The psychological impact of fasting is an area of growing interest. Fasting can influence our relationship with food, potentially leading to an “all or nothing” mentality. Personality types that thrive on routine may find success with fasting, whereas those prone to anxiety or disordered eating patterns should approach with caution. Consulting with a mental health professional can provide additional insights into whether fasting is a suitable approach.

Best Practices for Fasting

For those who find intermittent fasting aligns with their health goals and lifestyle, here are some best practices:

Listen to Your Body: Adjust fasting schedules based on personal health, performance, and well-being.
Focus on Nutrition: Prioritize a balanced diet rich in nutrients during eating periods.
Hydrate: Ensure adequate fluid intake, especially during fasting windows.
Moderate Exercise: Align training intensity with energy levels, considering lighter workouts during fasting periods.

While intermittent fasting offers potential health benefits, it’s not without its caveats. The recent study underscores the importance of further research to fully understand the long-term impacts. As always, individual experiences with fasting will vary, underscoring the need for personalized guidance from healthcare and nutrition professionals.

Is Your Love for Packaged Foods Hurting Your Gut Health?

12Mar12th March 2024 By Rob Hobson

The latest comprehensive review might leave a sour taste, especially if you’re scrolling through this while munching on your favorite boxed breakfast. The research is clear and quite alarming: a direct link exists between the consumption of ultra-processed foods (UPFs) and an array of 32 negative health outcomes.

These convenience foods, it turns out, pose risks to every part of the human body, including increased chances of developing heart disease, cancer, type 2 diabetes, mental health issues, and even leading to an untimely demise.

What was the study?

The monumental study, published in the BMJ, involved nearly 10 million participants and sheds light on the escalating consumption of UPFs worldwide. These include popular items like breakfast cereals, protein bars, sodas, pre-packaged meals, and fast food. Laden with unhealthy levels of fats, salts, and sugars, deficient in essential vitamins and fibre and loaded with additives, it’s shocking to find that these foods constitute more than half of the average diet in the UK. Particularly alarming is the uptake among younger demographics, economically challenged individuals, and those in less affluent regions, with diets comprising up to 80% UPFs.

Avoiding ultra-processed foods while attempting to plan healthy meals is not as straightforward as it might seem. In my research for the book “Unprocess Your Life,” it became evident that not all UPFs are created equal. Some, like wholemeal bread, certain cereals, and plant-based options, have been suggested to possess health benefits.

Could our gut be the missing link?

The debate is ongoing: while some argue for a ban or health warnings on UPFs similar to tobacco products, others call for a reevaluation of UPFs to acknowledge the nutritional value of some of these foods. Despite the ongoing discussion on which specific ingredients are the culprits, there’s a consensus that processed foods disrupt our gut’s microbial balance, which could be the root cause of their harmful effects.

Our understanding of the gut’s impact on overall health, including mental well-being, weight management, immunity, hormone regulation, digestion, and energy metabolism, is rapidly evolving. Research now suggests that a high intake of UPFs can significantly increase the risk of death from cardiovascular diseases, elevate the likelihood of anxiety and mental disorders, and raise the risk of type 2 diabetes. These findings point back to the critical role of gut health.

The Link Between Gut Health and Obesity

Characterised by heavy industrial processing and additives like artificial colors and flavors, UPFs have been closely studied for their connection to obesity—a factor in many non-communicable diseases identified in the study. The research highlights how the gut microbiome influences energy absorption and the breakdown of complex carbohydrates into short-chain fatty acids, which impacts everything from energy use in the body to appetite regulation.

Consuming large amounts of UPFs can detrimentally affect the gut microbiome due to the lack of beneficial nutrients, excessive intake of unhealthy components, and additives. This can lead to a less effective digestion and energy storage process.

Improving Gut Diversity Through Diet

The low fiber and high fat and sugar content in UPFs can harm the diversity of the gut microbiome. To combat this, increasing fiber intake through nutrient-dense UPFs and swapping out sugar and fat-laden processed meals for natural foods rich in fiber, like fruits, nuts, and seeds, is recommended. Such changes can foster a healthier gut microbiome, reducing the risk of chronic diseases.

Understanding Prebiotics and Recognising Food Label Red Flags

Fiber serves as a prebiotic, nourishing beneficial gut bacteria that produce anti-inflammatory short-chain fatty acids. However, the typically low fiber content in UPFs can diminish these beneficial effects. Consuming a diet rich in prebiotic foods can support gut health and immune function.

Additionally, certain additives in UPFs, like emulsifiers and artificial sweeteners, may directly affect the gut microbiome, leading to concerns over gut inflammation and metabolic syndromes. While research continues to explore the specifics, there’s growing evidence that these additives contribute to gut health issues.

While the debate over UPFs continues, focusing on a diet predominantly consisting of whole foods is beneficial. A realistic approach to dieting, which may include some UPFs balanced with healthy options, is likely the most sustainable path to long-term health. Embracing small, manageable changes towards gut health is a crucial step for everyone aiming for a healthier lifestyle.

Addressing Premenstrual Syndrome Through Diet and Supplements

04Mar4th March 2024 By Rob Hobson

Premenstrual Syndrome (PMS) is a prevalent concern for many women of childbearing age, leading to a spectrum of physical, emotional, and social difficulties in the days leading up to menstruation. Symptoms vary widely but often include emotional changes such as mood swings, sadness, anger, and anxiety, alongside physical symptoms like increased hunger, cravings for sweets, exhaustion, and headaches.

A notable percentage of women, estimated at 8-20%, experience symptoms so severe that they seek medical help. Common treatments include hormonal therapy with contraceptives to regulate hormonal imbalances or antidepressants to increase serotonin levels, improving mood.

Understanding PMS Causes

The exact cause of PMS is not fully understood, but hormonal fluctuations throughout the menstrual cycle, particularly progesterone release, are thought to play a significant role. This hormonal change may affect brain chemistry, leading to symptoms. The importance of micronutrients and essential fatty acids is also being explored for their potential to ease PMS symptoms.

Despite skepticism due to similar hormone levels in those affected and unaffected by PMS, it’s now more widely acknowledged that PMS may relate to a heightened sensitivity to female hormones rather than the levels of these hormones themselves. Conditions such as diabetes, irritable bowel syndrome (IBS), or food allergies may increase susceptibility to PMS, highlighting the role of inflammation.

Diet’s Role in Managing PMS

Maintaining a balanced diet with stable blood sugar levels is crucial for managing PMS. An anti-inflammatory diet, consisting of lean proteins, vegetables, fruits, legumes, and healthy fats like olive oil and fish rich in omega-3 fatty acids, can mitigate symptoms. Consuming foods with a low glycaemic load and high in fibre can help balance hormone levels, reducing anxiety, irritability, and cravings.

Five foods shown to help relieve symptoms of PMS:

Kale

Leafy greens like kale are packed with fibre, aiding in hormone and blood sugar regulation. Kale, rich in calcium, proves beneficial for women experiencing PMS. These vegetables are also an excellent iron source, combating fatigue and tiredness from dietary deficiencies and menstrual losses. The phytonutrients in vegetables activate the immune system, diminishing inflammation.

Oily Fish

Evidence suggests that the omega-3 fatty acids in oily fish, known for their anti-inflammatory properties, may alleviate menstrual pain. Aim for a few servings per week of fish like salmon, tuna, trout, mackerel, and herring. Oily fish are also among the rare natural sources of vitamin D, deficiency in which is linked to PMS symptoms.

Oats

Whole grain cereals, including oats, are rich in thiamine (vitamin B1). Studies indicate a significant reduction in PMS risk (35%) for women with higher intakes of vitamins B1 and B2. Whole grains provide carbohydrates that aid in the absorption of tryptophan (found in eggs and turkey), essential for producing serotonin, a brain hormone that can help mitigate mood swings and curb sugar cravings.

Red Kidney Beans

Beans, especially red kidney beans, are fibre-rich, supporting weight management and the removal of excess hormones, thereby stabilizing blood sugar. They’re also packed with iron and zinc; deficiencies in these minerals may increase PMS risk.

Cashew Nuts

Cashews are rich in magnesium, frequently referred to as nature’s own calming agent, essential for easing PMS symptoms, especially those linked to stress and anxiety. Studies indicate that women experiencing PMS often have diminished magnesium levels. This mineral is key in transforming vitamin B6 to its active state, which is crucial for the synthesis of neurotransmitters that regulate mood. Additionally, cashews provide iron, a deficiency in which can worsen feelings of tiredness, and studies suggest that women with lower iron levels are more prone to suffer from PMS.

The Role of Supplements

While a nutritious diet is paramount, evidence suggests supplements might offer additional benefits in managing PMS. For many, a three-month trial of specific supplements, coupled with a symptom diary, can help determine their effectiveness.

Calcium and vitamin D supplements

Calcium imbalances may mirror the symptoms of PMS and calcium supplementation can help alleviate these symptoms. A study involving 466 women experiencing moderate to severe PMS showed that a daily intake of 1200mg of calcium over three menstrual cycles led to a significant 48% reduction in overall symptom scores, compared to a 33% reduction observed with a placebo.

Additionally, the combination of Vitamin D and calcium has been shown to diminish the occurrence of headaches, negative mood swings, fluid retention, and pain. Typically, these supplements benefit approximately two-thirds of women who use them.

Magnesium

Involved in numerous bodily processes, including energy production and bone health, magnesium may alleviate symptoms like fluid retention, mood disturbances, and pain, particularly in those deficient in this mineral. In one study, 32 women with PMS were given magnesium or a placebo in a double-blind, randomized design. The study found that magnesium significantly reduced the total Menstrual Distress Questionnaire score and the cluster “negative affect,” indicating that magnesium supplementation could be an effective treatment for premenstrual symptoms related to mood changes.

Gingko Biloba

Extracted from gingko biloba leaves, this supplement may reduce inflammation and improve circulation, offering relief from bloating and breast pain associated with PMS. One study of 165 women with congestive symptoms of PMS such as bloating, and breast pain were given supplemented with Gingko biloba extracts and after two months of treatment showed significant improvements especially in reducing breast symptoms compared to a placebo.

Research suggests one tablet (containing 40mg extract) three times per day from day 16 of your menstrual cycle to the 5^th day of the next cycle reduces severity of symptoms of PMS. After the intervention there was a significant decrease in the overall severity of symptoms among the group that took Gingko (23.7%) and the placebo (8.7%).

B6 supplements

B6, a member of the B vitamin family, plays a crucial role in metabolising food and producing red blood cells. It has been found effective in alleviating mood and fatigue symptoms through its involvement in creating neurotransmitters. Studies recommend a daily intake of 50mg of B6 to mitigate PMS symptoms.

In one study with 68 women, taking 50mg of B6 daily for three months significantly enhanced emotional well-being, reducing symptoms of depression, irritability, and tiredness, compared to those who took a placebo. The study noted a 69% reduction in emotional symptoms and a 52% decrease in physical symptoms.

Managing PMS can be effectively supported through dietary and supplement interventions. A combination of exercise, a balanced diet, and specific supplements can help mitigate the symptoms of PMS, such as bloating, mood swings, and fatigue.