Sachi Health The PCOS Brief
Each week, one peer-reviewed PCOS lifestyle study. What was studied, what it found, what's actually actionable. By two women co-founders.
Can exercise improve sexual function with PCOS? After 16 weeks, both aerobic training groups crossed back above the clinical threshold
A 16-week randomized controlled trial in women with PCOS: continuous and intermittent aerobic training both raised sexual function scores past the 26.55 threshold, while anxiety, depression, and testosterone fell.
Can exercise improve body image with PCOS? 16 weeks of aerobic training eased body dissatisfaction, but not how women judged their own size
A 16-week three-arm controlled trial in women with PCOS: aerobic training eased body dissatisfaction, anxiety, depression, and sexual function, while body size perception, weight, and BMI stayed unchanged.
Does HIIT help PCOS anxiety and depression? A 12-week randomized trial found intervals eased all three mood measures, moderate exercise only eased stress
A 12-week randomized trial in 29 inactive women with PCOS compared workload-matched interval and moderate cycling: intervals eased depression, anxiety, and stress; moderate exercise eased stress only.
Is high-protein or high-carb better for PCOS? A randomized trial found the weight loss did the real work, not the macro split
A randomized trial in 28 overweight women with PCOS compared 16 weeks of a higher-protein versus a higher-carbohydrate energy-restricted diet: both produced ~7.7 kg weight loss and near-identical metabolic gains.
Can exercise or acupuncture help irregular periods in PCOS? A randomized trial found both worked, with acupuncture the stronger
A three-arm randomized trial of 84 women with PCOS: 16 weeks of electro-acupuncture or aerobic exercise both raised menstrual frequency and lowered testosterone versus no intervention; gains held at follow-up.
Can strength training help you sleep better with PCOS? A randomized trial of 24 women found 4 weeks of bodyweight exercises improved sleep scores
A randomized controlled trial of 24 women with PCOS and poor sleep: strengthening exercises three times a week for four weeks improved the global Pittsburgh Sleep Quality Index score from 12.9 to 9.5 versus control.
Does inositol actually lower testosterone in PCOS? A review of 26 trials and 1,691 women found it did — and matched metformin with fewer side effects
A 2023 review pooling 26 randomized trials of 1,691 women found inositol lowered total and free testosterone versus placebo, raised SHBG, and was non-inferior to metformin with far fewer side effects (7% vs 53%).
Can a low-starch, low-dairy diet lower insulin and testosterone in PCOS? What a study of 24 women found
In a study of 24 women with PCOS, eight weeks of a low-starch, low-dairy diet, with no calorie counting and no medication, was linked to about a 50% drop in fasting insulin and lower testosterone and hirsutism scores.
Does the Mediterranean diet lower testosterone in PCOS? What a study of 224 women found
Women who closely followed the Mediterranean diet, eating more olive oil, fish, legumes, and nuts, had lower testosterone, even after accounting for body weight, in a study of 224 women with PCOS.
Exercise improved testosterone, insulin resistance, and cholesterol in women with PCOS, without any weight loss: a randomized controlled trial of combined strength and cardio training
A randomized controlled trial of 30 women with PCOS: 8 weeks of combined strength and cardio training significantly lowered testosterone, insulin resistance, and cholesterol — without weight loss.
Yoga vs. conventional exercise for anxiety in PCOS: a randomized trial in adolescent girls shows yoga significantly better for trait anxiety over 12 weeks
A 12-week randomized trial of 90 adolescent girls with PCOS: both yoga and matched conventional exercise reduced anxiety, but yoga was significantly better for trait anxiety — the kind that lingers.
Omega-3 supplementation, testosterone, and menstrual regularity in PCOS: a double-blind randomized trial of 78 overweight women shows real hormonal change in 8 weeks
A double-blind randomized trial of 78 overweight women with PCOS: 8 weeks of omega-3 (3 g/day) lowered testosterone vs. placebo, and twice as many women had regular cycles by the end (47% vs. 23%).
PCOS is now PMOS. Here's what's changing, what's not, and why we're not done.
PCOS was officially renamed polyendocrine metabolic ovarian syndrome (PMOS) this week in a landmark Lancet consensus. What's actually changing, what's not, and where Sachi fits.
Aerobic exercise, quality of life, and PCOS: a 16-week randomized trial where nobody dropped out
A 16-week randomized controlled trial of overweight women with PCOS had zero dropouts in the exercise group — and improved quality of life, fitness, BMI, blood pressure, cholesterol, and inflammation.
Does spearmint tea lower testosterone in PCOS? What a 30-day randomized trial found
A 30-day randomized controlled trial of 42 women with PCOS found two cups of spearmint tea a day significantly lowered free and total testosterone vs. placebo — though visible hair change takes longer than 30 days.
Sleep timing, weight-neutral counseling, and emerging PCOS in adolescents: a cohort study of 43 girls at Michigan Medicine
A weight-neutral approach plus a focus on sleep timing produced significant weight loss in 43 adolescents with emerging PCOS at Michigan Medicine. What the study found, what it means, and what's actually actionable.