I want to eat healthily. So why do I crave sugar, salt and carbs?

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We all want to eat healthily, especially as we reset our health goals at the start of a new year. But sometimes these plans are sabotaged by powerful cravings for sweet, salty or carb-heavy foods.

So why do you crave these foods when you’re trying to improve your diet or lose weight? And what can you do about it?

There are many reasons for craving specific foods, but let’s focus on four common ones:

1. Blood sugar crashes

Sugar is a key energy source for all animals, and its taste is one of the most basic sensory experiences. Even without specific sweet taste receptors on the tongue, a strong preference for sugar can develop, indicating a mechanism beyond taste alone.

Neurons responding to sugar are activated when sugar is delivered to the gut. This can increase appetite and make you want to consume more. Giving into cravings also drives an appetite for more sugar.

In the long term, research suggests a high-sugar diet can affect mood, digestion and inflammation in the gut.

While there’s a lot of variation between individuals, regularly eating sugary and high-carb foods can lead to rapid spikes and crashes in blood sugar levels. When your blood sugar drops, your body can respond by craving quick sources of energy, often in the form of sugar and carbs because these deliver the fastest, most easily accessible form of energy.

2. Drops in dopamine and serotonin

Certain neurotransmitters, such as dopamine, are involved in the reward and pleasure centres of the brain. Eating sugary and carb-rich foods can trigger the release of dopamine, creating a pleasurable experience and reinforcing the craving.

Serotonin, the feel-good hormone, suppresses appetite. Natural changes in serotonin can influence daily fluctuations in mood, energy levels and attention. It’s also associated with eating more carb-rich snacks in the afternoon.

Woman sits at her desk, tired
Do you get 3pm sugar cravings? Serotonin could play a role.
Marcus Aurelius/Pexels

Low carb diets may reduce serotonin and lower mood. However, a recent systematic review suggests little association between these diets and risk for anxiety and depression.

Compared to men, women tend to crave more carb rich foods. Feeling irritable, tired, depressed or experiencing carb cravings are part of premenstrual symptoms and could be linked to reduced serotonin levels.

3. Loss of fluids and drops in blood sugar and salt

Sometimes our bodies crave the things they’re missing, such as hydration or even salt. A low-carb diet, for example, depletes insulin levels, decreasing sodium and water retention.

Very low-carb diets, like ketogenic diets, induce “ketosis”, a metabolic state where the body switches to using fat as its primary energy source, moving away from the usual dependence on carbohydrates.

Ketosis is often associated with increased urine production, further contributing to potential fluid loss, electrolyte imbalances and salt cravings.

4. High levels of stress or emotional turmoil

Stress, boredom and emotional turmoil can lead to cravings for comfort foods. This is because stress-related hormones can impact our appetite, satiety (feeling full) and food preferences.

The stress hormone cortisol, in particular, can drive cravings for sweet comfort foods.

A 2001 study of 59 premenopausal women subjected to stress revealed that the stress led to higher calorie consumption.

A more recent study found chronic stress, when paired with high-calorie diet, increases food intake and a preference for sweet foods. This shows the importance of a healthy diet during stress to prevent weight gain.

What can you do about cravings?

Here are four tips to curb cravings:

1) don’t cut out whole food groups. Aim for a well-balanced diet and make sure you include:

  • sufficient protein in your meals to help you feel full and reduce the urge to snack on sugary and carb-rich foods. Older adults should aim for 20–40g protein per meal with a particular focus on breakfast and lunch and an overall daily protein intake of at least 0.8g per kg of body weight for muscle health
  • fibre-rich foods, such as vegetables and whole grains. These make you feel full and stabilise your blood sugar levels. Examples include broccoli, quinoa, brown rice, oats, beans, lentils and bran cereals. Substitute refined carbs high in sugar like processed snack bars, soft drink or baked goods for more complex ones like whole grain bread or wholewheat muffins, or nut and seed bars or energy bites made with chia seeds and oats

2) manage your stress levels. Practise stress-reduction techniques like meditation, deep breathing, or yoga to manage emotional triggers for cravings. Practising mindful eating, by eating slowly and tuning into bodily sensations, can also reduce daily calorie intake and curb cravings and stress-driven eating

3) get enough sleep. Aim for seven to eight hours of quality sleep per night, with a minimum of seven hours. Lack of sleep can disrupt hormones that regulate hunger and cravings

4) control your portions. If you decide to indulge in a treat, control your portion size to avoid overindulging.

Overcoming cravings for sugar, salt and carbs when trying to eat healthily or lose weight is undoubtedly a formidable challenge. Remember, it’s a journey, and setbacks may occur. Be patient with yourself – your success is not defined by occasional cravings but by your ability to manage and overcome them.The Conversation

Hayley O’Neill, Assistant Professor, Faculty of Health Sciences and Medicine, Bond University

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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  • Revive and Maintain Metabolism

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    It’s Q&A Day at 10almonds!

    Have a question or a request? You can always hit “reply” to any of our emails, or use the feedback widget at the bottom!

    In cases where we’ve already covered something, we might link to what we wrote before, but will always be happy to revisit any of our topics again in the future too—there’s always more to say!

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    ❝How to jump start a inactive metabolism and keep it going? THANKYOU❞

    The good news is, if you’re alive, your metabolism is active (it never stops!). So, it may just need perking up a little.

    As for keeping it going, well, that’s what we’re here for! We’re all in favor of healthy longevity.

    We’ll do a main feature soon on what we can do to influence our metabolism in either direction, but to give some quick notes here:

    • A lot of our metabolism is influenced by genes and is unalterable (without modifying our genes, anyway)
    • Metabolism isn’t just one thing—it’s many. And sometimes, parts of our metabolism can be much quicker or slower than others.
    • When people talk about wanting a “faster metabolism”, they’re usually referring to fat-burning, and that’s just a small part of the picture, but we understand that it’s a focal point for many.

    There really is enough material for a whole main feature on metabolic tweaks, though, so watch this space!

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  • Build Muscle (Healthily!)

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    What Do You Have To Gain?

    We have previously promised a three-part series about changing one’s weight:

    1. Losing weight (specifically, losing fat)
    2. Gaining weight (specifically, gaining muscle)
    3. Gaining weight (specifically, gaining fat)

    And yes, that last one is also something that some people want/need to do (healthily!), and want/need help with that.

    There will be, however, no need for a “losing muscle” article, because (even though sometimes a person might have some reason to want to do this), it’s really just a case of “those things we said for gaining muscle? Don’t do those and the muscle will atrophy naturally”.

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    You’re also probably aware that if we’re not careful, we tend to lose muscle as we get older. This is known as age-related sarcopenia:

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    Dr. Gabrielle Lyon, our featured expert in the above article, recommends getting at least 1.6g of protein per kg of body weight per day (Americans, divide your weight in pounds by 2.2 to get your weight in kg).

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    You may be wondering: should we go for animal or plant protein? In which case, the short version is:

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    What exercises are best for muscle-building?

    Of course, different muscles require different exercises, but for all of them, resistance training is what builds muscle the most, and it’s pretty much impossible to build a lot of muscle otherwise.

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    Prepare to fail!

    No, really, prepare to fail. Because while resistance training in general is good for maintaining strong muscles and bones, you will only gain muscle if your current muscle is not enough to do the exercise:

    • If you do a heavy resistance exercise without undue difficulty, your muscles will say to each other “Good job, team! That was hard, but luckily we were strong enough; no changes necessary”.
    • If you do a heavy resistance exercise to the point where you can no longer do it (called: training to failure), then your muscles will say to each other “Oof, what a task! What we’ve got here is clearly not enough, so we’ll have to add more muscle for next time”.

    Safety note: training to failure comes with safety risks. If using free weights or weight machines, please do so under well-trained supervision. If doing it with bodyweight (e.g. press-ups until you can press no more) or resistance bands, please check with your doctor first to ensure this is safe for you.

    You can also increase the effectiveness of your resistance training by doing it in a way that “confuses” your muscles, making it harder for them to adapt in the moment, and thus forcing them to adapt more in the long term (e.g. get bigger and stronger):

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    Make time for recovery

    While many kinds of exercise can be done daily, exercise to build muscle(s) means at the very least resting that muscle (or muscle group) the next day.

    For this reason, a lot of bodybuilders have for example a week’s schedule that might look like:

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    • Wednesday: Lower body training
    • Friday: Core strength training

    …and rest on other days. This gives most muscles a full week of recovery, and every muscle at least 48 hours of recovery.

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    Take care!

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  • Functional Exercise For Seniors – by James Atkinson

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    A lot of exercises books are tailored to 20-year-old athletes training for their first Tough Mudder. Others, that the only thing standing between us and a perfect Retroflex Countersupine Divine Pretzel position is a professionally-lit Instagrammable photo.

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    Click here to check out Functional Exercises For Seniors, and build your stability, balance, strength and mobility!

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    When To Take Electrolytes (And When We Shouldn’t!)

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    Well, that’s not helpful. Any clearer pointers?

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      • This can be facilitated by drinking 400 mL to 600 mL of fluid 2 hours before beginning exercise and drinking sufficient fluid during exercise to prevent dehydration from exceeding 2% body weight.
    • A practical recommendation is to drink small amounts of fluid (150-300 mL) every 15 to 20 minutes of exercise, varying the volume depending on sweating rate.
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      • During prolonged exercise lasting longer than 90 minutes, commercially available carbohydrate electrolyte beverages should be considered to provide an exogenous carbohydrate source to sustain carbohydrate oxidation and endurance performance.
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    Don’t Forget…

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  • Healthy Choco-Banoffee Ice Cream

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    Chocolate, banana, and coffee—quite a threesome, whether for breakfast or dessert, and this is healthy enough for breakfast while being decadent enough for dessert! With no dairy or added sugar, and lots of antioxidants, this is a healthy way to start or end your day.

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  • Nasal Hair; How Far To Go?

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    t’s Q&A Day at 10almonds!

    Have a question or a request? You can always hit “reply” to any of our emails, or use the feedback widget at the bottom!

    In cases where we’ve already covered something, we might link to what we wrote before, but will always be happy to revisit any of our topics again in the future too—there’s always more to say!

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    ❝As a man in his sixties I find I need to trim my nasal hair quite frequently, otherwise it sticks out in an unsightly manner. But I’m never sure how severely I should cut the hairs back, or even how best to do it. Please advise.❞

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    Enjoy!

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    Learn to Age Gracefully

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