Nutrition advice aimed at women is often either too restrictive, too complicated, or built around diet culture rather than actual physiology. This guide takes a different approach — straightforward, evidence-based, and built around how real women in the UK eat and train.
How many calories do women actually need
Calorie needs vary based on height, weight, age, and activity level. The figures used in most UK government guidelines (2,000 calories/day for women) are population averages that don't reflect individual variation particularly well.
A more accurate starting point using a simple formula:
- Sedentary (desk job, minimal exercise): bodyweight in kg × 26–28
- Lightly active (1–2 training sessions/week): bodyweight in kg × 29–31
- Moderately active (3–4 sessions/week): bodyweight in kg × 32–34
- Very active (5+ sessions/week): bodyweight in kg × 35–38
Example: 65kg woman, moderately active → 65 × 33 = ~2,145 calories/day to maintain weight.
This is a starting estimate. Track food intake for 2–3 weeks, monitor weight trends, and adjust up or down based on what your body actually does. Everyone's metabolism is slightly different.
Protein — why it's the most important thing to get right
Most UK women eating a standard diet are significantly under their optimal protein intake. The typical UK diet provides 50–70g protein per day for women. For women who train, the evidence-backed target is considerably higher: 1.6–2.2g per kg of bodyweight.
For a 65kg woman: 104–143g protein per day.
Why this matters so much:
- Protein preserves lean muscle during fat loss, so the weight you lose is predominantly fat
- It's the most filling macronutrient — higher protein intake consistently reduces overall calorie intake
- It supports muscle repair and growth after training
- It has a higher thermic effect than carbs or fat (digesting protein burns more calories)
Practical UK protein sources at reasonable cost: eggs, chicken thighs, tinned tuna, Greek yoghurt, cottage cheese, tinned pulses, frozen fish. Getting to 130g+ per day requires protein at most meals — it doesn't happen by accident.
Carbohydrates and women's training performance
Carbohydrates are the primary fuel source for moderate-to-high intensity training. Cutting carbs significantly while training hard will impair performance, increase perceived effort, and make training sessions feel harder than they should.
Women's carbohydrate needs fluctuate with the menstrual cycle. In the follicular phase (roughly days 1–14), insulin sensitivity is higher and carbohydrates are utilised more efficiently — this is a good time for higher carbohydrate intake around training. In the luteal phase (days 15–28), progesterone can increase hunger and carbohydrate cravings — managing this with higher protein and fibre rather than trying to suppress it works better for most women.
Good UK carbohydrate sources for training: oats, rice, sweet potato, wholemeal bread, pasta, fruit. Focus on volume and fibre rather than avoiding carbs.
Iron and women's nutrition
Iron deficiency is the most common nutritional deficiency in UK women of reproductive age, affecting roughly 25% of women aged 19–64. Low iron causes fatigue, reduced training performance, and impaired recovery — symptoms that are often attributed to overtraining or insufficient sleep rather than a nutritional gap.
Foods high in iron:
- Red meat (beef, lamb) — haem iron, most bioavailable form
- Dark leafy greens (spinach, kale) — non-haem iron, less bioavailable but still useful
- Lentils and chickpeas — good plant-based source
- Fortified cereals (Weetabix, bran flakes)
Vitamin C consumed alongside non-haem iron sources significantly improves absorption — a glass of orange juice with a spinach-based meal makes a genuine difference.
If you're training regularly and experiencing persistent fatigue, a simple blood test through your GP can check iron and ferritin levels. Low ferritin (stored iron) often precedes clinical anaemia and responds well to dietary changes or supplementation.
Meal timing around training
The evidence on meal timing is less dramatic than the fitness industry suggests, but some practical guidelines:
Pre-training: A meal containing protein and carbohydrates 1–3 hours before training improves performance and reduces muscle breakdown. It doesn't need to be elaborate — Greek yoghurt and a banana, or rice and chicken are both fine.
Post-training: Consuming protein within 2 hours of training supports muscle protein synthesis. Total daily protein intake matters more than precise timing, but getting protein in after training is a sensible habit.
Overall: Meal timing is a fine-tuning consideration, not a primary one. Getting total calories and protein right matters far more than when you eat them.
Nutrition guides for women
Calorie-counted meal plans, high-protein UK recipes, and practical eating guides for active women are linked below.