World Heart Day | Gym culture meets cardiology: Does everyone really need more protein?
Resistance training is beneficial for heart health, improving key cardiovascular markers and lowering mortality risk
This World Heart Day, the focus shifts to the critical intersection of fitness culture and cardiovascular health. While resistance training offers significant heart benefits, the article highlights the potential dangers of stimulant-laden pre-workout supplements and emphasizes that the source of protein intake is more crucial for heart health than sheer quantity. Prioritizing plant-based proteins and a balanced diet rich in fiber is essential for a truly heart-smart approach to fitness.
This World Heart Day, the focus shifts to the critical intersection of fitness culture and cardiovascular health. While resistance training offers significant heart benefits, the article highlights the potential dangers of stimulant-laden pre-workout supplements and emphasizes that the source of protein intake is more crucial for heart health than sheer quantity. Prioritizing plant-based proteins and a balanced diet rich in fiber is essential for a truly heart-smart approach to fitness.
This World Heart Day, the focus shifts to the critical intersection of fitness culture and cardiovascular health. While resistance training offers significant heart benefits, the article highlights the potential dangers of stimulant-laden pre-workout supplements and emphasizes that the source of protein intake is more crucial for heart health than sheer quantity. Prioritizing plant-based proteins and a balanced diet rich in fiber is essential for a truly heart-smart approach to fitness.
On this World Heart Day—themed “Don’t Miss a Beat”—gyms are full of resolutions and protein shakers. It’s the right time to ask what fitness influencers rarely do: Is the way we’re training and eating actually good for our hearts?
Cardiovascular disease is still the world’s biggest killer, and it often strikes people who feel fit and healthy. That’s why cardiology needs a seat at the table in gym culture - not as damage control after an event, but as part of how we train in the first place.
1. The good news: Lifting is heart-friendly
Resistance training isn’t the enemy. It improves blood pressure, lipids, insulin sensitivity, and pooled research links regular lifting to lower all-cause and cardiac mortality vs. non-lifters. The gym itself isn’t the problem.
The problem enters through two side doors: pre-workouts and protein obsession.
2. Pre-workouts: A jolt your heart didn’t ask for
Many formulas pack 2-3x a strong coffee’s caffeine plus synephrine, high-dose beta-alanine and other stimulants. Together they can sharply spike heart rate and blood pressure. That matters if you have an undiagnosed arrhythmia, a family history of cardiac disease, or you take it on an empty stomach before a heavy set.
Palpitations, chest tightness, and anxiety-like symptoms during training are complaints cardiologists hear regularly. Stacking two stimulant products or double-scooping only raises risk. Not every pre-workout is dangerous, but it deserves the same scrutiny as any substance that alters your heart rate - not the casual “it’s just powder” attitude.
3. Protein: Quantity matters less than source
For regularly training adults, 1.4 - 2.0 g/kg/day is a reasonable, evidence-backed target for muscle and recovery - higher than the RDA, but not infinite. Beyond adequacy, more protein ≠ more muscle.
For the heart, where protein comes from matters more than the gram count. 30g from dal, rajma, tofu, curd, nuts comes with fibre and unsaturated fat. 30g from processed meat or a sugar-laden bar comes with sodium and saturated fat. Same number on the label, very different cardiac effect. Current heart-health guidance leans plant-forward - pulses, nuts - and cautions against processed meats.
The other quiet risk: when protein-chasing takes over, fruit, vegetables, whole grains and fibre get squeezed out. A high-protein diet isn’t automatically heart-healthy just because it’s high in protein.
Kidney fears? In healthy adults, protein in the 1.4-2.0 g range hasn’t shown clear harm, though long-term data is limited. People with existing kidney disease need individualised advice, not an influencer’s target.
Heart-smart takeaway
Keep lifting - it’s one of the best things you can do for your heart. But treat pre-workout like a stimulant, not a snack. And treat protein as “from where and how much of my plate?” not just a number to hit.
This World Heart Day, the most useful habit isn’t a bigger scoop - it’s not missing the beat your heart is already giving you.
The author is a senior consultant, non-invasive cardiology at CK Birla Hospital, Gurugram.
The opinions expressed in this article are those of the author and do not purport to reflect the opinions or views of THE WEEK.