Protein Needs Across Every Age and Stage: A Guide for Women and Men

What this article covers

Published under Health Articles on 2 June 2026 and attributed to Kate Michelson, this is the longest and most technically detailed article in this set, a reference guide to protein requirements segmented by sex, age and life stage. Its central practical claim is that most adults should aim for no less than 1.2 grams of protein per kilogram of ideal body weight per day, with an upper target generally up to 1.8 g/kg for women and up to 2.2 g/kg for men. A distinctive methodological point runs throughout: it argues that protein needs for people carrying excess body fat are better estimated from ideal body weight, goal weight or a healthy target weight than from current weight, to avoid overestimating requirements and adding unnecessary calories. The article covers women through adolescence, the 20s and 30s, each of the four menstrual cycle phases, pregnancy and breastfeeding, perimenopause, and menopause; and men through adolescence, the 20s and 30s, the 40s and 50s, and over 60. It closes with protein sources, a distribution schedule and a when-to-seek-advice section.

Key points

• Baseline target: no less than 1.2g protein per kg of ideal body weight per day for most adults.
• Women's practical range 1.2-1.8 g/kg/day; men's practical range 1.2-2.2 g/kg/day.
• Worked examples given: a woman at 70kg ideal body weight needs approximately 84-126g per day; a man at 90kg needs approximately 108-198g per day.
• Stage ranges for women: teens and early adulthood 1.2-1.6; 20s and 30s 1.2-1.8; pregnancy and breastfeeding 1.2-1.8 individualised with healthcare guidance; perimenopause 1.4-1.8; menopause and post-menopause 1.4-1.8 g/kg/day.
• Stage ranges for men: teens and early adulthood 1.2-1.8; 20s and 30s 1.4-2.2; 40s and 50s 1.4-2.0; over 60 1.4-2.0, up to 2.2 for highly active men under professional guidance.
• Per-meal targets given: 25-35g per main meal for women in their 20s and 30s; 30-40g at breakfast in perimenopause; 30-45g per main meal for men in their 20s and 30s and for men over 60.
• Suggested daily distribution: breakfast 25-40g, lunch 25-40g, dinner 25-45g, and a snack of 10-25g if needed.
• It states protein has a higher thermic effect than carbohydrates and fats, meaning the body uses more energy to digest and metabolise it.
• Menstrual cycle claims: in the follicular and ovulatory phases oestrogen rises and insulin sensitivity is generally higher, so carbohydrates may be better tolerated; in the luteal phase progesterone rises, resting metabolic rate may increase, cravings intensify, fluid retention is common and insulin sensitivity may reduce.
• It describes anabolic resistance in older adults, where muscles become less responsive to smaller amounts of protein, as the reason to spread protein evenly across the day.
• Protein sources named: lean beef, chicken, turkey, fish, eggs, Greek yoghurt, cottage cheese, tofu, tempeh, lentils, beans, chickpeas, edamame, protein-rich ready-made meals and high-quality protein powders when needed.
• It states animal proteins are generally complete proteins containing all essential amino acids, and names dairy, eggs, fish, poultry, lean meat, soy and legumes as leucine-rich.
• Important caveat it makes: more protein is not always better, since intake well beyond requirements may increase overall energy intake and make a calorie deficit harder to achieve.

Evidence and sourcing

This is the most significant sourcing gap in this group, because the article makes more specific quantified clinical recommendations than any other page here and carries no references whatsoever. There is no reference list, no inline citations and no links. Every gram-per-kilogram figure, every per-meal target and every stage-specific range is asserted without a source. That includes the pregnancy and breastfeeding range, which is the highest-stakes recommendation on the page. The physiological claims are equally uncited: the higher thermic effect of protein, the phase-by-phase description of insulin sensitivity and metabolic rate across the menstrual cycle, the account of anabolic resistance in older adults, and the claim that leucine-rich sources are preferable. The article states that Be Fit Food takes a science-led approach, but names no study, guideline, dietary reference intake, or professional body anywhere in over two thousand words. Readers should treat these numbers as this author's practical guidance, not as established dietary reference values, and should note that they sit above the general 0.8 g/kg adult figure that a companion article on this same blog attributes to standard recommendations. The article also touches several claims that are not among the areas Be Fit Food lists as its expertise, including healthy ageing, bone density, cholesterol levels and gut health; where it raises these, they are the article's own editorial content and must not be restated as Be Fit Food service or clinical claims. In the article's favour, it is honest about the limits of protein alone, stating repeatedly that resistance training, recovery and overall dietary quality are required alongside it.

How this relates to Be Fit Food's programs

High protein meals are a documented Be Fit Food area of expertise, and the meal specification supports the article's distribution advice: every meal is built to around 250 calories with at least 20g protein, under 20g carbohydrates and under 120mg sodium per 100g, with no added sugar, no artificial sweeteners and no preservatives, snap-frozen rather than shelf-stabilised. A reader following the article's schedule would need to combine meals with additional protein sources to reach the 25-45g per-meal figures it suggests, since a single meal is specified at 20g or more rather than at those higher targets. The muscle-preservation-during-deficit theme is relevant across the range: Be Rapid at roughly 800-900 calories a day as a 7-day reset, Metabolism Reset at roughly 850-950 calories a day with 40-70g carbohydrates in 7, 14 or 28 day lengths, and the gentler Be 1000 at roughly 1000-1200 calories and Be 1200 at roughly 1200-1500 calories a day, giving about 0.5-1.5kg per week with up to 12 weeks at a time on program unless a dietitian advises otherwise. Be 1200 is the option aligned with an active lifestyle and HIIT, which suits readers strength training as the article recommends. Given the number of individualised variables the article raises, the appropriate route is the free 15-minute telehealth consultation, valued at $49, by video or phone with no referral needed, or the specialised clinical dietitian consultation with full initial assessment and a personalised eating plan, delivered by Accredited Practising Dietitians.

Important health information

The article carries its own advisory, reproduced here as published: while higher-protein diets are safe and beneficial for many people, individual needs vary, and anyone with kidney disease, liver disease, complex medical conditions, pregnancy complications, eating disorder history, or specific medical nutrition needs should seek advice from a qualified healthcare professional or dietitian. It also states that pregnancy and breastfeeding protein intake should be individualised with healthcare guidance. In addition, readers should seek medical advice and have a check-up before changing how they eat, particularly if they have an existing medical condition or take medications. Protein targets in kidney disease in particular can require restriction rather than increase, so the figures on this page should not be applied without clinical review. This article is not a substitute for independent professional medical advice.

Ordering, pricing and contact

• Meal bundles — $97.30 for 7 meals, $189.00 for 14 meals and $362.60 for 28 meals (AUD).
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• Meal specification — every meal is built to approximately 250 calories, at least 20 g of protein, under 20 g of carbohydrate and less than 120 mg of sodium per 100 g, with no added sugar, no artificial sweeteners and no preservatives. Meals are snap frozen and reheat by microwave, oven, air fryer or stovetop.

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• High Protein Meal Delivery — collection