Food freedom: your midlife body, your muscles, and making it stick

Weekend Read · Week 8 · 11 min read · Reviewed against peer-reviewed evidence, October 2026

The 6–9 teaspoon ceiling has a real source

In 2015 the World Health Organization made two recommendations about free sugars, meaning sugars added to food plus those in honey, syrups and fruit juice. Keep them under 10% of your daily energy: that one is rated "strong". And a further cut to below 5%, or roughly 25 grams (about 6 teaspoons) a day, "would provide additional health benefits". That second one is rated "conditional", because the evidence behind it is weaker (WHO, 2015).

In 2009 the American Heart Association set a prudent upper limit for added sugars of 100 calories a day for most women and 150 for most men (Johnson et al., 2009). In sugar terms, that's about 6 teaspoons and about 9 teaspoons.

So 6 teaspoons sits at WHO's lower, "extra benefit" level. Nine is still comfortably under its 10% line, which is roughly double the 5% figure. The program's range lives in that space on purpose. It's a ceiling, not a quota. Plenty of days you'll use none of it.

What 6–9 teaspoons looks like in real food

The quick maths: 4 grams of sugar on a label is about 1 teaspoon. WHO uses the same rule of thumb, and gives two examples. A tablespoon of tomato sauce holds about 1 teaspoon of free sugars. A single can of soft drink can hold around 10 (WHO, 2015).

So one can is more than the whole day's ceiling, while a dollop of sauce on your eggs and a square of dark chocolate after dinner fit easily.

Two things to keep in mind this week. Sugar in whole fruit and in plain milk and yoghurt isn't counted as free sugar, so it isn't part of the 6–9. And when you sweeten something yourself, rice malt syrup and stevia are still the program's sweeteners of choice. Count any rice malt syrup you use toward your teaspoons.

Your muscles are where the sugar goes

Here's the finding that changes how people think about blood sugar. After a meal, most of the glucose that leaves your blood doesn't go to your liver or your fat stores. It goes into your muscles.

Researchers measure this with a technique called the insulin clamp. Under those conditions, about 80% of glucose uptake happens in skeletal muscle. In the words of one of the field's leading reviews, skeletal muscle is "the major site of glucose uptake in the postprandial state", meaning after you eat (DeFronzo & Tripathy, 2009).

Think of your muscles as a storage cupboard for sugar. The bigger and more active the cupboard, the more room there is, and it tends to shrink with age.

Muscle is a midlife issue, not just an old-age one

Sarcopenia is the medical name for losing muscle strength and mass. Europe's expert working group describes it as a muscle disease that builds up "across a lifetime". It's common in older adults, but it can start earlier (Cruz-Jentoft et al., 2019). Their updated definition puts strength first, ahead of size.

For women, midlife adds hormones to the mix. Oestrogen plays a helpful part in how the body handles glucose, and some of that is lost at menopause (Mauvais-Jarvis, 2017). A major 2023 review describes the menopause transition as having mainly adverse effects on cardiometabolic and musculoskeletal health, meaning heart, metabolism, muscle and bone (Davis et al., 2023).

Strength training is one of the best-supported levers

The good news is that muscle responds at any age. A 2022 meta-analysis pooled 20 randomised trials in 1,172 adults with type 2 diabetes. Resistance training lowered HbA1c, a three-month average of blood sugar, by 0.39 percentage points compared with controls. The people who got stronger saw bigger improvements (Jansson et al., 2022). A 2025 meta-analysis of 43 trials in people aged 50 and over with type 2 diabetes, more than half of them women, found strength training was linked with better insulin sensitivity, lower fasting glucose and more muscle (Wang et al., 2025).

One caveat: both reviews looked at people with type 2 diabetes. The evidence in people without diabetes is thinner, though the mechanism is the same.

Then there's bone. The Australian LIFTMOR trial took 101 postmenopausal women with low bone mass, average age 65. Half did 30 minutes of supervised, heavy strength and impact training twice a week for eight months. The other half did a gentle home program. In the strength group, spine bone density went up 2.9%. In the gentle group it went down 1.2%. The strength group also got better on every measure of physical function, and there was only one minor injury, a back spasm (Watson et al., 2018). The word "supervised" is doing real work there. If heavy lifting is new to you, learn it with a qualified trainer or exercise physiologist.

Protein is the other half

Muscle is built from protein, and needs change with age. An international expert group, PROT-AGE, recommends that people over 65 eat at least 1.0–1.2 grams of protein per kilogram of body weight a day, and 1.2 or more if they're active (Bauer et al., 2013). For someone who weighs 70 kg, that's about 70–84 grams a day. It was written for over-65s, but it's a useful marker if you're heading that way. People with serious kidney disease are the exception, and should follow their doctor's advice.

In practice, that means a palm-sized serve of protein at every meal, not just dinner. Your meal plan already builds breakfasts around eggs, yoghurt and leftovers. Keep that going after the program ends.

A lapse is a day, not a direction

The question we hear most in Week 8 is "how do I not slide back?" The research on habits is reassuring.

Habits take longer than 21 days, and that's fine

In a well-known 2010 study, 96 volunteers picked a new daily habit, such as eating fruit at lunch or going for a run, and tracked how automatic it felt for 12 weeks. For the people whose data could be modelled, the median time to reach near-full automaticity was 66 days. The range was huge: 18 to 254 days. And missing a single day didn't meaningfully set people back (Lally et al., 2010).

It was a small study, and the longest times were projections beyond the 12 weeks measured. But the message is clear enough. Eight weeks is 56 days. You're well along the curve, and the things that have worked will keep getting easier.

The "what the hell" effect

Here's the trap. In a classic 1975 experiment, people were given a milkshake, then asked to taste-test ice cream. People who weren't dieting ate less ice cream after a milkshake, as you'd expect. Strict dieters ate more. Once the "rule" was broken, they stopped holding back (Herman & Mack, 1975). Psychologists later nicknamed this the "what the hell" effect. It's an old, small study, but anyone who has thought "the day's ruined now" will recognise it.

Addiction researchers describe something similar, called the abstinence violation effect: one slip gets read as total failure, and that belief is what turns a lapse into a relapse. Their answer is to plan for lapses in advance and treat them as information, not proof (Larimer et al., 1999).

That's why Week 8 is a ceiling and not a ban. There's no rule to break, so there's no "what the hell" moment waiting for you.

After a big sugary day

• Don't skip the next meal to make up for it. Eat a normal, protein-first breakfast.
• Go for a walk, or do your strength session. Your muscles will help clear the sugar.
• Drink water, and get to bed on time if you can. Sleep shapes tomorrow's cravings.
• Notice what happened. Were you tired, hungry, stressed? That's useful, not shameful.
• Go back to your usual plate. One day is one day.

The evidence map

A snapshot of the studies behind this article. "Strong" means a systematic review or meta-analysis with a consistent result. "Moderate" means good-quality individual studies. "Emerging" means early or small studies.

Theme	Study	Strength	Finding
Sugar limits	WHO, 2015; Johnson et al., 2009	National data	Free sugars under 10% of energy, ideally under 5% (about 6 tsp); AHA limit about 6 tsp for most women, 9 for most men.
Where glucose goes	DeFronzo & Tripathy, 2009	Moderate	Skeletal muscle is the main site of glucose uptake after meals; about 80% under insulin-clamp conditions.
Muscle loss	Cruz-Jentoft et al., 2019	Moderate	Sarcopenia builds across a lifetime and can begin before old age; low strength is the key sign.
Strength training and blood sugar	Jansson et al., 2022; Wang et al., 2025	Strong	In people with type 2 diabetes, resistance training lowered HbA1c and improved insulin sensitivity.
Strength training and bone	Watson et al., 2018 (LIFTMOR)	Moderate	Supervised heavy training raised spine bone density in postmenopausal women with low bone mass.
Protein with age	Bauer et al., 2013 (PROT-AGE)	Moderate	Expert recommendation of 1.0–1.2 g/kg/day for over-65s, more if active.
Menopause and metabolism	Davis et al., 2023; Mauvais-Jarvis, 2017	Moderate	Oestrogen's helpful role in glucose handling is partly lost at menopause.
Forming habits	Lally et al., 2010	Emerging	Median 66 days to automaticity (range 18–254); a single missed day didn't derail it.
"What the hell" effect	Herman & Mack, 1975; Larimer et al., 1999	Emerging	Strict dieters ate more after "breaking" a rule; treating a slip as failure raises relapse risk.

Making Week 8 work for you

This is the week the program hands you the keys.

• Spend your teaspoons on purpose. Choose sugar you'll actually enjoy, like a good dessert with friends, over sugar you won't notice, like sweetened yoghurt or a bottled sauce.
• Keep the base. The meal plan, the Sunday cook-up and protein-first breakfasts are what got you here. Week 8 adds room on top. It doesn't replace the base.
• Keep moving. The movement plan doesn't end with the program. About 20 minutes a day, with strength work at least twice a week, is a strong long-term habit.
• Enjoy the Final Feast. It's a celebration, not a test. Cook something you're proud of, share it, and notice how differently sweet things taste now.

If you're in perimenopause or menopause

This article is, in a way, written for you. Falling oestrogen changes how your body handles glucose, and adverse changes in muscle and bone tend to follow (Mauvais-Jarvis, 2017; Davis et al., 2023). Of everything in this article, strength training and enough protein are the two most worth adding now. LIFTMOR showed heavy training can be done safely by postmenopausal women with low bone mass, with good supervision. If you've been diagnosed with osteoporosis, have had a fracture, or have joint problems, talk to your GP or an accredited exercise physiologist before you start. Menopausal hormone therapy is a separate conversation to have with your doctor. It's the most effective treatment for bothersome symptoms, and it's not either-or with any of this.

What this article isn't saying

• That you should eat 6–9 teaspoons a day. It's a ceiling. Zero is fine too.
• That strength training will prevent or reverse diabetes or osteoporosis. It's linked with better blood sugar and bone density in trials, and it works alongside medical care, not instead of it.
• That one big day of sugar undoes eight weeks. It doesn't.
• That this is about your weight. It's about energy, strength and how you want to feel at 60, 70 and beyond.

Common questions

Does fruit count toward my 6–9 teaspoons?

Whole fruit doesn't. WHO counts only free sugars: added sugars plus those in honey, syrups and juice (WHO, 2015). Juice and dried fruit are a different story, so treat them as sweet treats.

I've never lifted weights. Where do I start?

With your own body weight. Squats to a chair, wall push-ups and step-ups are real strength training. When they feel easy, add load. A session or two with a qualified trainer is worth it if you want to lift heavier.

What if I go over the ceiling at a party?

Enjoy the party. Next morning, eat your usual breakfast, go for a walk and carry on. The goal is the pattern across weeks, not a perfect score each day.

I have diabetes. Does any of this change for me?

Strength training is part of standard diabetes advice. But if you take insulin or medication that lowers blood sugar, more exercise and more sugar can both change your needs. Talk to your GP or diabetes educator, and keep monitoring as usual.

Eight weeks ago you started with drinks. Since then you've read labels, cooked, walked, and learnt what sweet actually tastes like. That isn't a diet you're finishing. It's a way of eating you now know how to run yourself. Enjoy the feast. You've earned it.

About this article

Written by the I Quit Sugar team for the 8-Week Program, and reviewed against the peer-reviewed sources listed below.

Not medical advice. This article is general education. It isn't a diagnosis or a substitute for advice from your own health professional. If you're managing a medical condition, are pregnant or breastfeeding, or take medication, speak with your doctor before making significant changes to how you eat.

References

1. World Health Organization. Guideline: Sugars intake for adults and children. 2015. WHO; and WHO calls on countries to reduce sugars intake among adults and children (news release, 4 March 2015). WHO
2. Johnson RK, Appel LJ, Brands M, et al. Dietary sugars intake and cardiovascular health: a scientific statement from the American Heart Association. Circulation. 2009;120(11):1011–20. DOI
3. DeFronzo RA, Tripathy D. Skeletal muscle insulin resistance is the primary defect in type 2 diabetes. Diabetes Care. 2009;32(Suppl 2):S157–63. DOI
4. Cruz-Jentoft AJ, Bahat G, Bauer J, et al. Sarcopenia: revised European consensus on definition and diagnosis. Age Ageing. 2019;48(1):16–31. DOI
5. Mauvais-Jarvis F. Menopause, estrogens, and glucose homeostasis in women. Adv Exp Med Biol. 2017;1043:217–225. DOI
6. Davis SR, Pinkerton J, Santoro N, Simoncini T. Menopause — biology, consequences, supportive care, and therapeutic options. Cell. 2023;186(19):4038–4058. DOI
7. Jansson AK, Chan LX, Lubans DR, Duncan MJ, Plotnikoff RC. Effect of resistance training on HbA1c in adults with type 2 diabetes mellitus and the moderating effect of changes in muscular strength: a systematic review and meta-analysis. BMJ Open Diabetes Res Care. 2022;10(2):e002595. DOI
8. Wang J, Fan S, Wang J. Resistance training enhances metabolic and muscular health and reduces systemic inflammation in middle-aged and older adults with type 2 diabetes: a meta-analysis. Diabetes Res Clin Pract. 2025;229:112941. DOI
9. Watson SL, Weeks BK, Weis LJ, Harding AT, Horan SA, Beck BR. High-intensity resistance and impact training improves bone mineral density and physical function in postmenopausal women with osteopenia and osteoporosis: the LIFTMOR randomized controlled trial. J Bone Miner Res. 2018;33(2):211–220. DOI
10. Bauer J, Biolo G, Cederholm T, et al. Evidence-based recommendations for optimal dietary protein intake in older people: a position paper from the PROT-AGE Study Group. J Am Med Dir Assoc. 2013;14(8):542–59. DOI
11. Lally P, van Jaarsveld CHM, Potts HWW, Wardle J. How are habits formed: modelling habit formation in the real world. Eur J Soc Psychol. 2010;40(6):998–1009. DOI
12. Herman CP, Mack D. Restrained and unrestrained eating. J Pers. 1975;43(4):647–60. DOI
13. Larimer ME, Palmer RS, Marlatt GA. Relapse prevention: an overview of Marlatt's cognitive-behavioral model. Alcohol Res Health. 1999;23(2):151–60. PubMed