Metabolism Truths: Your Ultimate Guide to Boosting Yours

Written by: Natasha Jordan

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Time to read 7 min

Metabolism, the process by which your body converts food and nutrients into energy, is crucial in weight management (and weight management is crucial for longevity). However, several common myths about metabolism can be misleading if you’re looking into weight loss strategies. Let's start by debunking these myths to help you make informed choices:


Dispelling Common Myths About Metabolism for Weight Loss

Myth: Slow metabolism is the leading cause of weight gain

Fact: While metabolism can vary from person to person, it's rarely the primary driver of weight gain. Factors like calorie intake, physical activity, and genetics play more significant roles. Focusing on a balanced diet and regular exercise is key (R).

Myth: Eating more frequent, small meals boosts metabolism

Fact: Meal frequency doesn't significantly impact metabolism. What matters most is your total daily calorie intake and nutrient quality. Eating in a way that suits your lifestyle is more important than meal frequency (R).

Myth: Certain foods or supplements can supercharge metabolism

Fact: While some foods (like spicy ones) temporarily boost metabolism, the effect is modest. No food can magically speed up metabolism enough for substantial weight loss. A balanced diet with whole foods is a better approach (R).

Myth: Late-night eating slows metabolism

Fact: It's not about when you eat, but what you eat and how much. Late-night snacking can lead to weight gain if it causes you to exceed your daily calorie needs (R).

Myth: Muscle weighs more than fat, so building muscle slows weight loss

Fact: Muscle is denser than fat; having more muscle increases your resting metabolic rate, helping you burn more calories at rest. Strength training is essential for long-term weight management (R).

Myth: Crash diets boost metabolism

Fact: Crash diets, which severely restrict calorie intake, can slow down metabolism to conserve energy. They are unsustainable and often lead to rebound weight gain (R).

Myth: Metabolism naturally slows with age, making weight loss harder

Fact: While metabolism may decline slightly with age, the main reason for weight gain as you get older is reduced physical activity and changes in diet. Regular exercise can counteract this effect (R, R).

In conclusion, effective weight loss is not about "tricking" your metabolism with fad diets or quick fixes. Instead, focus on maintaining a balanced diet, engaging in regular physical activity, and creating a sustainable, long-term plan that suits your needs. Refrain from falling for metabolism myths; they can distract you from the fundamentals of healthy weight management.

How to Boost Your Metabolism For Successful Weight Loss?

Boosting your metabolism can be crucial in successful weight loss, as it helps your body burn calories more efficiently. While genetics play a role in your metabolic rate, there are several strategies you can implement to boost your metabolism and support your weight loss goals. Here are some practical ways to do so:

Build Muscle

Muscle burns more calories at rest than fat, so incorporating strength training into your fitness routine is crucial. Focus on compound exercises like squats, deadlifts, and bench presses to work multiple muscle groups simultaneously. This boosts metabolism and shapes and tones your body (R).

Stay Active Throughout the Day

Don't limit physical activity to gym sessions. Incorporate movement into your daily life by taking the stairs, walking or biking to work, and stretching regularly. These activities can help keep your metabolism active all day (R).

High-Intensity Interval Training (HIIT)

HIIT workouts involve short bursts of intense exercise and brief recovery periods. These workouts increase metabolism and burn calories during and after training (R, R).

Eat Enough Protein

Protein requires more energy to digest than fats and carbs, a phenomenon known as the thermic effect of food (TEF). Incorporating lean protein sources like chicken, fish, tofu, and legumes into your meals can help increase metabolism while promoting satiety (R).

Don't Skip Meals

Skipping meals or severely restricting calories can slow your metabolism as your body goes into "starvation mode" to conserve energy. Regular, balanced meals and snacks can help maintain a healthy metabolic rate (R).

Stay Hydrated

Dehydration can slow down metabolic processes. Aim to drink enough water throughout the day to stay adequately hydrated, as this can support optimal metabolic function (R).

Get Sufficient Sleep

Poor sleep can disrupt hormones that regulate appetite and metabolism. Aim for 7-9 hours of sleep daily to help your body function optimally (R).

Manage Stress

Chronic stress can lead to elevated cortisol levels, which may slow metabolism and increase fat storage, particularly around the abdominal area. Incorporate stress management techniques like meditation, deep breathing, or yoga into your routine (R).

Spice Up Your Meals

Certain spices, like chilli peppers, contain compounds that can temporarily boost metabolism. While the effect is relatively small, incorporating spicy foods into your diet can help slightly increase calorie burning (R).

Metabolism

Consider Green Tea or Caffeine

Green tea contains catechins that may help increase metabolism, and caffeine can temporarily boost metabolic rate. However, moderation is key, as excessive caffeine consumption can have adverse effects (R).

Eat Enough Healthy Fats

Including sources of healthy fats like avocados, nuts, and olive oil in your diet can support metabolism and overall health. Healthy fats help regulate hormones and promote satiety (R).

Stay Consistent

Consistency is essential when it comes to boosting metabolism. Gradual, sustainable changes to your lifestyle, including diet and exercise, are more effective in the long run than extreme, short-term measures (R).

Consider Supplements

Some supplements, such as iron, selenium, and iodine, are essential for thyroid function, which plays a role in metabolism. Consult with a healthcare professional before taking supplements to ensure they are appropriate for your needs (R).


Remember that boosting metabolism alone is not a magic solution for weight loss. It should be part of a comprehensive approach that includes a balanced diet, regular physical activity, and a sustainable lifestyle. Individual results may vary, so what works best for one person may work differently for another. Consulting with a healthcare professional or registered dietitian can help you develop a personalised plan tailored to your specific needs and goals.

How to Increase Metabolism After 50

Metabolism naturally slows down with age, and this process typically begins in your 20s and becomes more noticeable as you reach your 40s and 50s. There are several reasons why metabolism tends to slow at around 50. These include decreased muscle mass, hormonal changes, lower physical activity, dietary changes, decreased basal metabolic rate (BMR), and reduced digestive efficiency (R).


It's important to note that while metabolism naturally slows with age, individual differences can be significant. Some people may experience a more noticeable decline in metabolism due to genetics, lifestyle choices, and overall health.


To combat age-related metabolic slowdown and maintain a healthy weight, it's crucial to stay physically active, engage in regular strength training exercises to preserve muscle mass and maintain a balanced diet that meets your nutritional needs (R). Consulting with a healthcare professional or registered dietitian can help you develop a personalised plan to address specific metabolic changes associated with aging and support overall health and well-being.


Increasing longevity by tuning up metabolism

Increasing metabolism can potentially contribute to longevity by promoting overall health and vitality in several ways:

Weight Management

A faster metabolism can make it easier to maintain a healthy weight. Obesity is associated with numerous health risks, including heart disease, type 2 diabetes, and certain types of cancer. By preventing excess weight gain and obesity, an increased metabolism reduces the risk of these life-threatening conditions (R).

Improved Insulin Sensitivity

A more efficient metabolism can help regulate blood sugar levels and improve insulin sensitivity. Chronic high blood sugar and insulin resistance are associated with an increased risk of type 2 diabetes and other metabolic disorders. By maintaining proper blood sugar control, individuals can reduce their risk of these diseases, promoting longevity (R).

Better Cardiovascular Health

A faster metabolism can lead to lower levels of triglycerides and LDL cholesterol (the "bad" cholesterol) in the bloodstream. This can reduce the risk of atherosclerosis (hardening of the arteries), hypertension (high blood pressure), and cardiovascular diseases, all of which can shorten lifespan (R).

Preservation of Lean Muscle Mass

A higher metabolism often accompanies greater muscle mass. Preserving muscle as you age is crucial for mobility, strength, and metabolic health. It can also help prevent falls and fractures, which can be life-threatening for older adults (R).

Enhanced Cellular Repair and Maintenance

A faster metabolism can support cellular repair and maintenance processes. Cells that function optimally are better equipped to resist damage from free radicals and other stressors, potentially slowing aging (R).

Increased Physical Activity

A more energetic metabolism may provide the motivation and stamina for regular physical activity. Exercise is associated with numerous health benefits, including improved cardiovascular health, better mood, and enhanced cognitive function, all of which can contribute to a longer and more fulfilling life (R).

Stress Resistance

Some research suggests that individuals with a more efficient metabolism may have better stress resistance. Chronic stress is linked to various health problems, including mental health issues and inflammation, which can impact longevity. A robust metabolism may mitigate these effects (R).



It's important to note that while increasing metabolism can benefit weight loss and longevity, it's not the sole factor. Lifestyle choices like a balanced diet, regular exercise, stress management, and avoiding harmful habits (e.g., smoking and excessive alcohol consumption) also play critical roles in determining overall health and lifespan. Additionally, genetics and individual variations in metabolism should be considered. As such, a holistic approach to health, weight loss and longevity is advisable, encompassing multiple aspects of well-being to promote a longer, healthier life.