Image caption: InstagramActor-turned-politician Ravi Kishan is no stranger to reinvention, but his latest transformation has caught everyone's attention for a different reason. The 57-year-old recently opened up on the Suno India podcast about how he's been shedding weight; a lot of it, and fast.He shared that he has cut grains out completely for the past two months and switched almost entirely to raw fruit. The result, he says, is a drop of roughly 15 kilos since his appearance in Laapataa Ladies. His words on the show were blunt: he's "off food" and living on fruit as he works to get his body leaner and more defined.It's the kind of headline that grabs eyeballs of a well-known public figure in his late fifties going near-fruitarian and seeing dramatic results. But before anyone rushes to copy the approach, it's worth understanding what this diet actually involves, and why doctors tend to raise an eyebrow at it.What exactly is a fruit-only dietThe eating style Ravi Kishan is describing falls under what nutritionists call a fruitarian diet, an extreme offshoot of veganism where raw fruit forms the bulk, sometimes almost the entirety, of what a person eats. According to Healthline, vegetables, nuts and seeds are allowed in small quantities, but grains, legumes, tubers and anything cooked are generally off the table.There's no single rulebook for it either. Some strict followers will only eat fruit that has naturally fallen from a tree rather than anything that's been picked, while others avoid seeded fruits altogether because a seed, in their view, represents a potential new life. It's less a diet plan and more a philosophy that people adapt to their own comfort level.The genuine upsides of eating more fruitTo be fair, fruit isn't the enemy here, in sensible amounts, it's one of the healthiest things you can put on your plate. It's loaded with fibre, which helps keep cholesterol in check and digestion running smoothly; apples, pears and berries are particularly good sources.Citrus fruits and strawberries bring a strong dose of vitamin C, which supports gum health and immunity. Bananas, mangoes and melons are rich in potassium, useful for keeping blood pressure and fluid balance in order, while oranges and other tropical fruits supply folate, important for red blood cell production.Dark fruits like plums, prunes and berries also carry antioxidants that help the body fend off cellular damage. None of that is in dispute; the problem starts when fruit becomes almost the only thing you eat.Where it starts to go wrongCutting out entire food groups for two straight months, as Ravi Kishan has done, might come with real trade-offs. A diet built almost entirely around fruit tends to fall dangerously short on protein, healthy fats, calcium, B vitamins and omega-3s, nutrients your muscles, bones, brain and hormones all depend on. Stay in that kind of deficit long enough and the body can slip into what's often called starvation mode, where the metabolism deliberately slows down to conserve energy.That's often exactly why the weighing scale moves so fast on these diets, some of it is genuine fat loss, but some of it is muscle loss and water weight too. Fatigue, anaemia and a weakened immune system are common complaints, and over the long term, low calcium intake can chip away at bone density.There's also an irony many people miss: despite being "natural," fruit is still high in sugar, which can be a real concern for anyone dealing with insulin resistance, prediabetes or PCOS.Why "fast results" aren't the same as "safe results"Dramatic transformations like this one tend to get attention precisely because they look impressive on screen, a leaner, more sculpted frame in a matter of weeks. But quick weight loss achieved by eliminating entire food groups rarely holds up as a long-term strategy.The moment a person returns to regular eating, much of the lost weight often creeps back, sometimes faster than it left. Nutritionists generally agree that this kind of restrictive eating should never be attempted without medical supervision, especially for someone in their late fifties, where bone health and muscle preservation matter even more.The smarter way to approach itIf the idea of eating more fruit genuinely appeals to you, the healthier route is moderation rather than elimination. Experts suggest capping fruit at around half your plate and building the rest around protein, think nuts, seeds, legumes or dairy if you're not strictly vegan, to fill the nutritional gaps a fruit-heavy diet leaves behind.A gradual shift works far better than an abrupt one: slowly cutting back on alcohol, caffeine, processed food and refined grains while adding in more raw produce, nuts and vegetables. Genuine, lasting fat loss still comes down to the basics that never go out of style: balanced nutrition, a sensible calorie deficit, regular strength training, and above all, consistency.Ravi Kishan's transformation might make for a compelling headline, but for most people, the fruit-only route is better admired from a distance than followed to the letter.