The people I work with are committed to achieving and sustaining their health goals. They genuinely care about this, they eat fresh whole foods, move their bodies regularly, drink plenty of water, and prioritise sleep when they can. And yet, many of them come to me feeling tired, bloated, flat, frustrated, or quietly confused as to why all this effort doesn’t seem to be translating into feeling better.
It’s frustrating – doing everything right and not seeing the results. Yet sometimes that, in itself, is the problem.
Overtraining and Under-Fuelling
This is one of the most common nutrition mistakes I see. Exercise becomes non-negotiable, almost moral. Rest and repair, on the other hand, are not taken as seriously, going from training into their busy lives without a pause. Pair that with not eating enough to support what their body is being asked to do, and problems arise.
Over time, this mismatch can show up as:
- Fatigue
- Poor recovery
- Disrupted sleep
- Low mood
- Hormonal imbalance,
- A body that feels heavy and resistant.
The issue isn’t exercise; it’s the lack of nourishment that should sit alongside it.
When I talk about under-eating, I’m not only talking about calories. Context matters too. If you eat lightly and live a very low-demand lifestyle, that’s different. But for people who are under stress, training regularly, sleeping poorly, juggling work, family, mental load, or all of the above, the body requires more energy to cope.
Food isn’t just fuel for exercise; it’s fuel for your nervous system, hormonal regulation, recovery, and the ability to feel resilient day to day. From a physiological point of view, consistently failing to meet energy needs in these situations increases stress on the body rather than reducing it.
Under-eating in this context doesn’t usually look extreme. It often looks like “eating well,” but not eating enough for the life you’re actually living.
The Importance of Protein
Protein is very commonly missed. Many people genuinely don’t realise they’re falling short. They may have a light breakfast, a salad at lunch, and a normal evening meal, and on paper, it looks healthy and balanced. But there often isn’t enough protein spread across the day to adequately support muscle maintenance, satiety, stable blood sugar, and recovery, particularly in people who train, are under chronic stress, or are moving through midlife. From a scientific perspective, protein requirements increase with age and physical demand, yet intake often stays the same or even drops.
Don’t Fear Carbs
Another nutrition mistake I see frequently is the fear of carbohydrates. Years of conflicting advice has taught people to see carbs as the enemy, it must be controlled, restricted, or earned. Clients talk of eating meals rich in vegetables and protein but very low in carbohydrates. This will leave you feeling unsatisfied, snacky, or constantly thinking about food.
From a physiological standpoint, carbohydrates play an important role in supporting energy availability, thyroid function, training performance, and nervous system regulation. Removing them too aggressively can leave the body feeling under-fuelled and on high alert, even when meals appear “healthy.”
Avoid Skipping Meals
This is another nutrition mistake that tends to creep in unnoticed. Sometimes it starts as intermittent fasting. Sometimes it’s simply being busy, distracted, or trying to be disciplined. But when meals are regularly delayed or missed, the body learns that fuel is unpredictable and scarce, sending it into survival mode. When this happens, your metabolism slows down, and your body starts to store calories as fat. This can also lead to blood sugar crashes and stronger cravings later in the day, leading to overeating in the evening.
A Note on Fasting
Fasting, in particular, deserves a more nuanced conversation than it often gets online. There is a real biological process called autophagy, which involves the recycling of damaged cellular components, and it can increase during periods of nutrient deprivation. However, science does not support the idea that longer or more extreme fasting automatically leads to better health outcomes for everyone. Human data does not give us a clear, universal “switch-on” point for autophagy, and benefits need to be weighed against overall energy balance, stress levels, training load, hormonal health, and individual history.
For many people, a gentle 12–16-hour overnight fast is enough and is a normal eating rhythm, involving finishing dinner earlier and eating breakfast later. But when fasting becomes rigid, prolonged, or layered on top of high stress, intense training, or low mood, it can quietly become another source of physiological strain rather than resilience.
Importantly, research also shows that restrictive eating patterns can increase the risk of disordered eating behaviours in some individuals, which is why fasting is not a neutral or universally appropriate tool.
Correcting Your Nutrition Mistakes
You know what to do and eat, and you certainly don’t lack willpower; yet, there could be a mismatch between what your body actually needs now and what you are giving it.
The reality is that bodies, hormones, and life changes require your nutritional intake to adapt accordingly.
Doing everything “right” can sometimes mean doing too much, for too long, without enough support. Health is not built by layering restrictions on top of stress. It’s built through adequacy, consistency, and learning when to respond to your body rather than override it.
Sometimes the most helpful thing you can do isn’t another plan, protocol, or strategy, but give yourself permission to eat enough, to fuel properly for the life you’re living.
Take the Next Step in Your Health & Wellbeing Journey
If 2026 is going to be the year you give yourself what you need to feel strong, vibrant and alive – get in touch. I believe that with the right nutrition, lifestyle changes, and support, you can feel more energised, balanced, and confident in your body.
If you’re ready to make lasting changes and need personalised guidance, I’m here to help. Whether you’re looking to balance hormones, improve digestion, boost energy, or manage your weight sustainably, I offer a range of health coaching packages tailored to your unique needs.
Let’s work together to create a plan that supports your health goals and fits into your lifestyle.
Your health is your greatest asset – let’s make it a priority!
👉 Book your free discovery call today and start your journey to better health.