> ## Content Index > Fetch the complete content index at: https://laiterlife.com/llms.txt > Use this file to discover other available public pages before exploring further. # Scientists say most people need more protein than current guidelines suggest - URL: https://laiterlife.com/scientists-say-most-people-need-more-protein-than-current-guidelines-suggest/ - Published: 2026-08-11T15:47:09.000Z - Updated: 2026-09-10T17:37:55.000Z - Description: A new review argues minimum UK protein guidance and basic exercise advice set the floor, not the finish line, especially for older or active adults seeking strength, independence and cognitive resilience across later life. - Author: David King - Tags: Nutrition, Healthy Ageing **A new review argues minimum UK protein guidance and basic exercise advice set the floor, not the finish line, especially for older or active adults seeking strength, independence and cognitive resilience across later life.** Public health advice tends to set the floor, not the ceiling. Walk briskly most days, add a couple of strength sessions each week, and eat enough protein to avoid deficiency: that is the familiar, minimum-viable approach. A new review led by Dr. Chris Macdonald contends that for many of us, particularly if we want to preserve strength, independence and cognitive sharpness as we age, those minimums may undershoot what is optimal. Macdonald’s argument is not about bodybuilding or fad diets. It is a call to reframe exercise and nutrition as tools for extending healthspan, the years we remain physically capable and mentally resilient, rather than simply avoiding disease. The review synthesizes evidence that combining aerobic activity with resistance training delivers broad benefits: lower mortality risk, better mental health, stronger cognitive function and more resistance to age-related decline. It also highlights that higher protein intakes than current UK minimums may better serve several groups, including physically active people, older adults and pregnant women. ## Why protein is back in the spotlight Protein guidance in the UK, the review notes, was largely calibrated for sedentary adults to prevent deficiency. That is a sensible starting point for population-wide policy. But it may leave performance on the table for anyone whose goal is to maintain muscle, mobility and brain health into later life. Muscle is metabolically active tissue. It underpins balance, gait, the capacity to recover from illness and even the ability to live independently. As we age, protecting it becomes a priority, and protein is a key piece of that puzzle. The review cites research indicating that those who are physically active, older or pregnant often have higher protein needs than sedentary adults. While the paper does not spell out specific targets for each group in the briefing available here, its thrust is clear: minimums designed to avoid deficiency may not be sufficient for optimal long-term function. It also points to an often-overlooked advantage of protein in day-to-day life. Higher-protein diets tend to support fat loss via greater satiety and a higher thermic effect of feeding, meaning your body expends a bit more energy digesting protein than it does processing carbohydrate or fat. For people managing weight or body composition, that can be a practical lever. ## Training for the brain, and the years ahead Macdonald’s review places special emphasis on blending aerobic and resistance exercise. Aerobic work remains a cornerstone for cardiovascular health and longevity. Resistance training complements it by directly targeting muscles and connective tissues that decline with age. The reviewed evidence links this combination not only to physical capacity but also to mental health and cognitive performance. For those in midlife and beyond, the message is empowering: strength training is not just for athletes; it is a preventative health tool. Importantly, the review argues for a mindset shift. High-intensity exercise, not precisely defined in the briefing, and higher-protein diets are often framed in aesthetic terms. Macdonald suggests reframing them as strategies to extend healthspan. In practice that means maintaining the ability to lift a suitcase into an overhead bin, garden without pain and stay sharp and confident in daily decisions. ## Plant-based, with a plan Higher protein does not mean abandoning a plant-forward plate. The author states that plant-based diets can supply sufficient protein, even for high needs, with careful planning. The review notes examples of vegan strength athletes to underscore that point. For everyday eaters, that translates into being intentional about protein sources and combinations, an approach that can coexist with ethical or environmental priorities. ## What this could mean for you - Consider the mix, not just the minutes. The evidence base reviewed suggests the pairing of aerobic activity with resistance training offers particularly broad benefits for longevity, mobility and cognitive function. Typical public health guidance already encourages regular aerobic activity plus twice-weekly muscle-strengthening. Macdonald’s position is that these elements may deserve even more emphasis if your goal is optimal aging. - Treat protein as a daily anchor. The review proposes that many people, especially if you are active, older or pregnant, may benefit from intakes above current UK minimums. While specific targets are not provided in the briefing, distributing protein across meals and snacks is a practical way to test whether a modest increase improves satiety, energy and training recovery. - Plant-based remains viable. With planning, plant-based eaters can meet higher protein needs. Think diversity of sources rather than relying on one staple. - Personalization matters. Macdonald’s call to supplement population guidelines implies more individualized advice. If you have a medical condition or are pregnant, discuss exercise and protein strategies with a healthcare professional. The briefing does not specify risks or contraindications for higher protein. Caution and clinical input are sensible, particularly for those with kidney concerns. ## System-level ripples If this shift from minimum adequacy to optimization gains traction, several changes could follow. Public health messaging may lean harder into resistance training and encourage higher protein intakes for specific subgroups. Clinicians and dietitians could see rising demand for individualized prescriptions focused on function, such as maintaining muscle, mobility and cognitive resilience, rather than solely on disease avoidance. Aging populations might benefit from community programs that prioritize combined training and pragmatic protein education. Food systems, including plant-based sectors, may respond with higher-protein offerings and clearer labels. For weight management, satiety-focused, higher-protein patterns could become more prominent. ## What remains unclear - Publication details: The precise citation, journal venue and peer-review status of Macdonald’s review are not provided here. - Numbers that matter: The briefing does not list specific protein ranges for older adults, pregnant women or highly active individuals. - Evidence quality: It is not clear from the briefing how much of the support comes from randomized trials versus observational studies. - Safety caveats: Potential risks or contraindications of higher protein, for example in people with kidney disease, are not addressed in the material provided. - Alignment with authorities: How these conclusions compare with positions from major UK and international public health and dietetic bodies is not specified. - Definitions and examples: What exactly counts as high-intensity exercise or a higher-protein diet operationally is not laid out, nor are practical exemplars. - Conflicts of interest: The briefing raises, but does not resolve, whether the author or the Better Protein Institute has funding or industry ties relevant to this topic. ## The bottom line Guidelines built to prevent deficiency are a floor, not a finish line. For many of us, especially as we aim to age well, combining aerobic and resistance training and paying closer attention to protein may yield better long-term physical and cognitive outcomes. Until more granular targets and safety parameters are published, a pragmatic next step is to treat the review as an invitation. Discuss your goals with a clinician or dietitian, audit your weekly training mix and consider whether your plate is anchored by adequate protein, plant-based or otherwise. Optimizing, not just avoiding deficiency, may be the difference between getting by and thriving. --- ### Find out more - [Frontiers | Beyond the bare minimum: the case for revised physical activity guidelines and protein intake recommendations that maximise healthspan](https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2026.1853124/full?ref=laiterlife.com) — The open‑access review by Dr Chris Macdonald that the article summarizes — read the full paper for the evidence and arguments for revising activity and protein guidance to prioritise healthspan. - [Protein for Life: Review of Optimal Protein Intake, Sustainable Dietary Sources and the Effect on Appetite in Ageing Adults](https://pmc.ncbi.nlm.nih.gov/articles/PMC5872778?ref=laiterlife.com) — A detailed, open review focused on optimal protein intake for ageing adults, sustainable (including plant) protein sources and how protein affects appetite and body composition in later life. - [UK Chief Medical Officers' physical activity guidelines - GOV.UK](https://www.gov.uk/government/publications/physical-activity-guidelines-uk-chief-medical-officers-report/uk-chief-medical-officers-physical-activity-guidelines?ref=laiterlife.com) — The UK Chief Medical Officers' official physical activity guidelines — authoritative, practical recommendations (including strength and balance work) for older adults. - [SACN statement on expressing energy, fat and carbohydrate intakes and recommendations - GOV.UK](https://www.gov.uk/government/publications/sacn-statement-on-expressing-fat-and-carbohydrate-recommendations/sacn-statement-on-expressing-energy-fat-and-carbohydrate-intakes-and-recommendations?ref=laiterlife.com) — A government summary of how dietary reference values (including protein) are set in the UK and the Scientific Advisory Committee on Nutrition’s role and future review plans. - [\[PDF\] CLINICAL PRACTICE GUIDELINES Nutrition in CKD UK Renal ...](https://www.ukkidney.org/sites/renal.org/files/nutrition-in-ckd-5th-edition-1.pdf?ref=laiterlife.com) — Clinical guidance from the UK Renal Association on protein advice for people with chronic kidney disease — useful if you have kidney problems and need specialist counselling on protein intake.