The claimWhat Lizzo actually said
In a June 2024 video Lizzo walked through her workout, describing circuits of squats, weights, a ball and a kettlebell. When followers later suggested a weight loss drug explained her results, she responded publicly that the previous five months had been weight training and a calorie deficit. She has separately said she was deliberately losing weight slowly and is not trying to be thin.
- today.com: Lizzo in their own words
- Deller et al., Diabetes, Obesity and Metabolism, 2026: systematic review finding calorie restriction plus training, especially strength training, better preserved fat-free and skeletal muscle mass than restriction alone.
- Xie et al., Nutrients, 2024: network meta-analysis of exercise combined with dietary interventions on body composition.
- Murphy and Koehler, Scandinavian Journal of Medicine and Science in Sports, 2022: meta-analysis showing energy deficiency impairs resistance training gains in lean mass but not in strength.
- Hudson et al., Advances in Nutrition, 2020: meta-analysis of protein intake above the RDA and whole-body lean mass during catabolic and anabolic stressors.
Why it mattersWhy this matters for longevity
Muscle lost during weight loss is difficult to regain, and it is the tissue most tied to strength and independence later in life
Adding resistance training changes what a deficit costs a person, not just what the scale says
Publicly naming the boring mechanism pushes back on the assumption that every visible change is pharmaceutical
The evidenceWhat the science says
Deller and colleagues systematically reviewed trials of calorie restriction with and without strength, endurance or mixed training in people with overweight or obesity, and found that adding training, particularly resistance training, better preserved fat-free and skeletal muscle mass than dieting alone. Xie and colleagues reached a similar conclusion in a 2024 network meta-analysis of exercise plus dietary interventions. Higher protein intake during energy restriction pushes in the same direction, as Hudson and colleagues found when pooling trials of intake above the RDA under catabolic stress.
The caveat is about magnitude and expectations. Murphy and Koehler's meta-analysis found that an energy deficit still blunts lean mass gains from resistance training, even if strength gains are largely protected: training during a deficit limits loss, it does not usually build. None of this evidence speaks to a specific weight, a timeline, or an appearance, and a circuit format is not proven superior to any other sensible resistance programme. Weight regain after a deficit ends is common and is not a personal failure.
TakeawayThe honest takeaway
The practical lesson
If losing fat is the goal, keep the deficit modest, lift two or three times a week, and get enough protein, because that combination is what protects muscle.
RelatedRelated habits
Each of these is a habit you can build on its own. Explore them through the Topics index.
SupplementsThe supplement angle: Protein and creatine
Support a habit, do not replace one
Protein needs rise during a calorie deficit, and a supplement is simply a convenient way to hit an intake that food can also cover. Creatine monohydrate is among the better studied training supplements, but it is not a weight loss aid and it is not a substitute for the training itself.
Supplements can support good habits. They do not replace sleep, movement, nutrition, or medical care. Talk with your healthcare provider before starting anything new.
This is educational commentary, not medical advice, and does not imply that Lizzo endorses, is affiliated with, or uses Winning Longevity or any product. We critique the claim and the evidence, not the person. Any direct quote is a placeholder until sourced. Talk with a qualified healthcare provider before changing your routine. See our health disclaimer.
