Apr 29, 2026Sleep

Can Better Sleep Help You Lose Weight? What Trials Show

Can better sleep support weight loss? A 2026 meta-analysis finds modest benefits for poor sleepers, but sleep is no standalone obesity treatment.

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Mar 31, 2026Nutrition

BPA and Childhood Weight: What a 56% Higher Odds Means

High urinary BPA was linked to 56% higher odds of childhood overweight or obesity. Here is what the evidence shows, where it fails, and how to reduce exposure.

bpaobesityfood packagingprocessed foods

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Mar 28, 2026Physical Activity

Diet, Exercise, and DNA Methylation After Major Weight Loss

Can diet and exercise alter DNA methylation? One 12-month study in severely obese hypogonadal men found leukocyte shifts, but not proof of fat-cell change.

dna methylationdnmtexerciseobesity

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Mar 26, 2026Nutrition

DASH Diet for Lipids in Obesity: What 22 Trials Show

Does DASH improve cholesterol in overweight adults? A 22-trial review finds small LDL and VLDL reductions, but no triglyceride or HDL change in obesity.

dash dietdyslipidemiatriglycerideshdl cholesterol

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Mar 24, 2026Physical Activity

HIIT for Overweight Adults: What Dose Actually Works?

HIIT can raise cardiorespiratory fitness in overweight adults, but research still cannot name the best dose, interval length, or weekly plan.

hiitvo2 maxinterval trainingdose-response

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Mar 23, 2026Nutrition

Avocado and Inflammation: Benefits Depend on Who You Are

Does avocado lower inflammation? Randomized trials find biomarker changes in people with metabolic dysfunction, but no evidence yet in healthy adults today.

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Mar 21, 2026Nutrition

Obesity Gut Microbiome: What 18 Datasets Actually Show

An 18-dataset analysis links obesity to depleted gut commensals and higher lipid biosynthesis—but the signal remains too noisy for personal testing.

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Mar 21, 2026Nutrition

Vitamin D and Childhood Obesity: Correlation, Not a Cure

Low vitamin D is common in children with obesity, but does it cause weight gain or result from it? What the evidence says about supplements.

vitamin dobesityvitamin d deficiencyadipogenesis

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Mar 21, 2026Glp 1 Agonists

47 GLP-1 Trials: What the Pooled Weight-Loss Result Means

A 47-trial GLP-1 meta-analysis found lower weight, BMI, and waist size—but pooled results hide major differences by drug and diabetes status.

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Mar 17, 2026Nutrition

Does Preconception Weight Loss Improve Fertility?

Does weight loss before fertility treatment improve live birth? The best trial found no benefit. Here is what couples should know about diet, exercise, sperm, GLP-1s, and pregnancy.

calorie restrictionfertilityobesitymetabolic syndrome

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Mar 17, 2026Cardiovascular Health

Semaglutide Helps a Specific Kind of HFpEF—Not All

Semaglutide improved symptoms and walking capacity in obesity-related HFpEF, but the evidence does not support cardiac use for every patient—or biohacker.

heart failurehfpefsemaglutideejection fraction

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Mar 7, 2026Physical Activity

Best Exercise for Visceral Fat Depends on Age and Goal

Aerobic exercise and HIIT reduce visceral fat in adults and youth, but the best dose in adults is less certain than many guides claim.

hiitvisceral fataerobic exercisebody composition

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