Book in one sentence: A triple-board-certified OB-GYN argues that menopause weight gain and hot flashes are driven by three upstream hormones (insulin, cortisol, oxytocin), not estrogen, and teaches a practical keto-plus-vegetables plan you can test at home with $8 urine strips.

• What Is The Hormone Fix About?
• What Is the Keto-Green Diet and How Does It Work?
• Why Does Cortisol Make Menopause Worse?
• What Does Oxytocin Have to Do With Weight Loss?
• Is The Hormone Fix Worth Reading?
• Books Like The Hormone Fix

What Is The Hormone Fix About?

You’ve cleaned up your diet, cut the carbs, added more cardio. The scale hasn’t moved. Meanwhile, the hot flashes, the 3am wake-ups, the fog that sits on top of your brain by 2pm are all still there, maybe worse. If that’s where you are, Anna Cabeca wrote this book for you.

Cabeca is a triple-board-certified OB-GYN and reproductive endocrinologist with over twenty years of clinical practice. She is also a woman who, in 2006, lost her eighteen-month-old son to drowning, and watched her own body respond to that grief by going into premature ovarian failure, gaining eighty pounds, losing her hair, and being told she would never conceive again. She was forty, medically trained, and could not figure out what was happening to her own body. The protocol in The Hormone Fix is what she developed to recover. She reportedly did, including conceiving the daughter she had been told was impossible.

That backstory matters because it earns the voice. Cabeca writes as someone who worked out these ideas on her own body first, not just her patients’. The central reframe she offers is this: the hormones driving the worst menopause symptoms are not primarily estrogen and progesterone. They are insulin, cortisol, and oxytocin. Get those three into balance, and the reproductive hormones follow. Ignore them, and no amount of hormone replacement fully compensates.

What Is the Keto-Green Diet and How Does It Work?

Standard ketogenic eating works for many women, for a while. Fat loss, clearer thinking, fewer cravings. Then something shifts. Mood destabilizes, inflammation creeps back, weight stalls, and the irritability is hard to explain if you’re “doing everything right.” Cabeca’s clinical observation is that this pattern has a cause: strict keto makes the body acidic over time, and chronic acidity drives inflammation and causes the body to hold onto fat as a protective buffer.

Her own experience confirmed it. She tested her urine with pH strips while eating strict keto and found herself persistently acidic. “No wonder I felt irritable,” she writes. The fix was simple in concept: add a large volume of alkalinizing vegetables (dark leafy greens, cucumber, zucchini, broccoli, asparagus, celery) to every meal, so the diet hits both fat-burning and alkalinity simultaneously.

The plate ratio is easy to remember without counting anything:

• 75% alkalinizing vegetables (by plate surface)
• A palm-sized amount of protein
• A golf-ball circle of healthy fat (avocado, olive oil, ghee, nuts)

Two types of inexpensive urine strips, tested each morning, confirm whether the previous day’s eating actually hit both targets. Ketone strips show whether fat-burning is happening. pH strips show whether the body is alkaline (target: 7.0 or above). Both are available at any pharmacy for a few dollars.

A word of honesty here: the claim that food directly changes your body’s pH is scientifically shaky. The body regulates blood pH within a very tight range regardless of what you eat. What the strips actually measure is urine pH, which does shift based on what you eat. The practical result of chasing alkaline urine (eating more vegetables alongside keto) is genuinely sound. The mechanism Cabeca offers to explain why it works is less solid than she implies. (That caveat doesn’t make the vegetables a bad idea. It just means the “alkalizing” framing is doing more marketing work than scientific work.)

What the monitoring system does accomplish, regardless of the mechanism, is real. It personalizes a population-level protocol. Some women hit alkalinity easily but struggle to enter ketosis. Others achieve ketosis quickly but drift acidic from too much protein. The strips tell you which problem is yours. They also prevent the maddening experience of following a program while actually missing both of its targets.

Why Does Cortisol Make Menopause Worse?

Chapter 8 is raw in a way most diet books aren’t, and it’s also where the clinical framework gets personal. Cabeca traces the physiology of what happened to her body after her son died: cortisol at crisis levels for months, progesterone suppressed, thyroid impaired, visceral fat accumulating, oxytocin depleted. The chapter makes a clinical argument that many women going through menopause during high-stress life seasons need to hear.

Chronic stress is not a mood problem. It is a hormonal problem. Cortisol and progesterone compete for the same receptor sites. When cortisol is chronically elevated, progesterone cannot get in. The result: progesterone deficiency symptoms (anxiety, poor sleep, mood swings) even when blood levels look normal on paper. This physiological reality is well-documented and almost never discussed in the average clinical encounter.

The dietary implications are manageable. The exercise implications are harder to accept. Cabeca argues that intense cardio worsens the hormonal picture for women with chronically elevated cortisol, because vigorous exercise is itself a cortisol stressor. Her prescription runs against most conventional fitness advice: reduce intense exercise, replace it with walking, yoga, and gentle strength work, and treat sleep as a medical intervention rather than a lifestyle preference.

She adds breathing practices, gratitude journaling, and nature exposure, framed not as soft suggestions but as cortisol management tools. These interventions have real physiological effects (slow breathing activates the parasympathetic nervous system; gratitude practices measurably reduce cortisol in research settings). Whether the degree of benefit matches the confidence of Cabeca’s prescriptions is harder to pin down, but the direction is right.

What Does Oxytocin Have to Do With Weight Loss?

Most people have heard oxytocin described as the “cuddle hormone.” Cabeca makes a bigger claim: oxytocin is a key upstream regulator of wellbeing, and it’s also the one thing conventional medicine cannot prescribe.

Oxytocin directly opposes cortisol. When oxytocin rises, cortisol falls. When cortisol falls, progesterone receptors open up. On the weight side, oxytocin is involved in satiety signaling and has been shown in animal and human studies to prevent insulin resistance and support fat loss. One 2008 study Cabeca cites found that mice with blocked oxytocin receptors became obese even without eating more food. A 2013 study showed extra oxytocin in humans triggered weight loss.

“There is a definite physiology behind all this. You’re not going crazy! If you ever experience burnout, emotional disconnection, or withdrawal from things and people you love, it is probably due to cortisol knocking oxytocin down.”

The behaviors that raise oxytocin reliably include:

• Twenty-second hugs (below that duration, the oxytocin release is minimal)
• Sustained eye contact
• Acts of generosity or service
• Prayer and meditation
• Group movement with social components (Zumba, dance classes, group yoga)
• Sexual intimacy
• Gratitude journaling

Cabeca’s framing of these as medical interventions rather than lifestyle suggestions is the book’s most interesting claim. It’s also why the dietary approach alone often fails. A woman eating Keto-Green flawlessly while going through a divorce, caregiving for an ill parent, and sleeping alone has almost no oxytocin inputs. The food cannot compensate for what connection does.

The oxytocin research is real but still developing. Cabeca applies it with more confidence than the dose-response evidence strictly supports. The twenty-second hug figure, for instance, comes from preliminary research, not a clinical guideline. But the general principle (connection, touch, and warmth measurably affect cortisol and metabolic function) holds up better than it might look at first.

Is The Hormone Fix Worth Reading?

Read this if you’re in perimenopause or postmenopause and have tried standard keto, clean eating, or both, and experienced the mood destabilization or eventual stall that many women describe. Also read it if you’ve been told your labs are normal while feeling anything but. Cabeca’s cortisol-progesterone framework explains a lot of that. And read it if you’re already on hormone replacement therapy but want to understand what lifestyle factors might be working against its effectiveness.

Skip it if you’re premenopausal looking for support with PCOS, endometriosis, or reproductive-age cycle irregularities. Cabeca’s framework is aimed squarely at perimenopause and menopause. Skip it too if you need rigorous dose-response data before adopting supplements. The supplement chapter is thin on that front.

One caveat: the alkaline science is oversold. The practical instruction it produces (eat more vegetables) is good. The mechanism Cabeca uses to explain why (body pH shifts with food) is not as solid as she presents it. Readers who notice that gap may lose trust in parts of the book that actually earn it. Take the vegetable-heavy eating pattern seriously. Take the pH framing as a useful heuristic, not hard science.

The practical value here is real. The 16-day plan, the urine strip monitoring system, and the three-hormone framework give perimenopausal and postmenopausal women a coherent starting point that addresses metabolic and lifestyle drivers before (or alongside) conventional hormone therapy. For a lot of women, that starting point is exactly what’s been missing.

Books Like The Hormone Fix