Frequently Asked Questions

The recommended dietary allowance (RDA) for protein is approximately 0.8 grams per kilogramme of body weight for sedentary adults. However, individual needs vary based on activity level, age, and fitness goals. Physically active individuals and older adults may benefit from 1.2 to 2.0 grams per kilogramme. Distributing protein intake evenly across meals—rather than consuming most at dinner—supports better muscle protein synthesis throughout the day and may enhance satiety.

Not at all. Carbohydrates are not inherently problematic; the quality and quantity matter most. Whole-grain carbohydrates—including oats, brown rice, and legumes—provide sustained energy, fibre, and valuable micronutrients. These foods promote satiety and stable blood sugar levels. Refined carbohydrates with added sugars, however, offer minimal nutritional benefit and can contribute to energy crashes and overeating. The key is choosing complex carbohydrates while being mindful of portion sizes relative to your overall energy needs.

Dietary fibre is a carbohydrate your body cannot digest, yet it plays a crucial role in digestive health and overall wellness. Soluble fibre (found in oats, beans, and apples) helps regulate blood sugar and cholesterol levels. Insoluble fibre (from whole grains and vegetables) supports regular bowel movements and gut health. The UK's National Health Service recommends 30 grams of fibre daily. Gradually increasing your intake and drinking adequate water ensures your digestive system adapts comfortably to higher fibre consumption.

Ultra-processed foods are manufactured products typically high in added sugars, unhealthy fats, and sodium, whilst low in nutrients and fibre. They often contain artificial additives, colourings, and preservatives. A practical approach is reading ingredient lists: if a product contains more than five ingredients you don't recognise or includes terms like "high-fructose corn syrup," "hydrogenated oils," or "monosodium glutamate," it's likely ultra-processed. Choosing foods with few, recognisable ingredients—ideally whole foods you could prepare at home—supports better nutritional outcomes.

Research suggests that breakfast timing and composition matter more than rigid meal schedules. Eating a balanced breakfast containing protein and complex carbohydrates can support sustained energy and focus throughout the morning. However, intermittent fasting approaches—including breakfast skipping—work well for some individuals. The most effective strategy is one you can maintain consistently. If you eat breakfast, ensure it includes protein and fibre. If you prefer fasting, ensure your subsequent meals provide adequate nutrition. Personal preference and how you feel should guide your decision.

Healthy fats support hormone production, nutrient absorption, and brain function. Unsaturated fats—found in olive oil, avocados, nuts, seeds, and fatty fish—are particularly beneficial. Omega-3 polyunsaturated fats from sources like salmon, flaxseeds, and walnuts support cardiovascular and cognitive health. Saturated fats from sources like coconut oil and full-fat dairy can be consumed in moderation. Conversely, trans fats and excessive saturated fat intake may negatively affect heart health. Aim for variety in your fat sources whilst maintaining appropriate total intake relative to your energy needs.

Individual water needs vary based on age, sex, activity level, and climate. A practical approach is the "8x8 rule"—eight 8-ounce glasses daily—though this is a simplification. A more personalised method is drinking sufficient water to maintain pale urine colour and drinking when thirsty. Approximately 35 millilitres per kilogramme of body weight serves as a baseline. Note that fruits, vegetables, and beverages contribute to overall fluid intake. During exercise or in warm weather, increase intake accordingly. Listen to your body's thirst signals and adjust based on your individual circumstances.

Yes, a well-planned plant-based diet can provide all essential nutrients. Key considerations include ensuring adequate protein through legumes, tofu, tempeh, nuts, and seeds; obtaining vitamin B12 through fortified foods or supplements; and consuming iron-rich plant foods alongside vitamin C sources to enhance absorption. Adequate calcium comes from fortified plant milks, leafy greens, and tahini. Omega-3 fatty acids can be sourced from flaxseeds, chia seeds, and walnuts. Planning meals thoughtfully and considering supplementation for nutrients less bioavailable in plant sources supports optimal health on a plant-based eating pattern.

The glycemic index (GI) measures how quickly a carbohydrate food raises blood glucose levels. Low GI foods (like lentils, oats, and sweet potatoes) produce gradual, sustained energy and promote satiety. High GI foods (like white bread and sugary drinks) cause rapid blood sugar spikes followed by crashes, potentially increasing hunger and energy fluctuations. Choosing predominantly low to medium GI carbohydrates supports stable energy and sustained focus. However, GI shouldn't be your only consideration—portion size, overall fibre content, and nutrient density matter equally. A balanced approach combines GI awareness with whole-food choices.

Sustainable habits develop through gradual, realistic changes rather than drastic overhauls. Start by adding nutritious foods you enjoy—such as an extra vegetable at dinner or a piece of fruit as a snack—rather than focusing solely on restriction. Meal planning and preparation reduce impulsive choices and support consistency. Finding a realistic eating pattern you can maintain long-term matters more than perfection. Setting specific, achievable goals (like increasing water intake or trying one new vegetable weekly) builds confidence and momentum. Recognising that nutrition is just one aspect of wellness, alongside sleep, movement, and stress management, supports holistic health development.

Nutrient timing refers to consuming nutrients at strategic points around exercise. Consuming carbohydrates and protein before training provides energy and supports performance, whilst post-exercise protein intake (within several hours) supports muscle protein synthesis and recovery. However, overall daily protein intake matters more than consuming protein within a specific post-workout window. Staying hydrated before, during, and after exercise is critical. Rather than obsessing over precise timing, focus on eating regular balanced meals throughout the day and ensuring adequate fuel before longer training sessions and protein after strenuous exercise. Individual tolerance and preferences should guide your specific approach.