Intermittent fasting is an eating plan that switches between fasting and eating on a regular schedule. There are studies and researches that shows that intermittent fasting is a way to manage your weight and prevent, or even reverse, some forms of disease.

While most diets focus on "what" you eat, intermittent fasting focuses on "when" you eat. This is the crucial difference, though here too, healthy eating is encouraged. However, with this diet, you only eat during a specific time. Research shows fasting for a certain number of hours each day or just eating one meal a couple days a week may have health benefits.

A 2022 study titled Intermittent and period fasting, longevity and disease, published in the Author Manuscript stated that cycles of fasting lasting from 12 to 72 hours followed by a refeeding period have beneficial effects of longevity, markers for health, stress, metabolic response, age-related diseases, and tissue regeneration.

Mark Mattson, a neuroscientist from John Hopkins, studied intermittent fasting for 25 years and he believes that "our bodies have evolved to be able to go without food for many hours, or even several days or longer. In prehistoric times, before humans learned to farm, they were hunters and gatherers who evolved to survive — and thrive — for long periods without eating. They had to: It took a lot of time and energy to hunt game and gather nuts and berries."

The official website of John Hopkins Medicine mentions that it was even easier to maintain a healthy weight in the US, some 50 years back, as there were no computers, TVs were turned off by 11pm, people stopped eating because they wanted to go to bed. Portions were also much smaller. More people worked and played outside, which also ensured getting enough exercise.

However, with TV, internet and other entertainment available 24/7, many are now staying up for longer hours, snacking all day long.

How does intermittent fasting really work?

It revolves around alternating periods of eating and fasting, giving your body a break from constant calorie intake. The approach can vary widely: you might restrict eating to an 8-hour window daily, leaving the remaining 16 hours for fasting, or eat only one meal on two specific days each week. The key is choosing a pattern that fits your lifestyle.

Here’s how it works: when you go several hours without food, your body exhausts its sugar stores and starts burning fat instead—a process called metabolic switching. Mattson explains, "Intermittent fasting contrasts with the typical eating patterns of most Americans, who consume food throughout their waking hours. When you eat three meals a day plus snacks without much exercise, your body primarily burns those calories, not stored fat."

By extending the fasting period, your body uses up stored calories and begins tapping into fat reserves for energy.

Also Read: Longevity Diets: What to Eat to Live Past 100

How to plan it?

Daily Time-Restricted Eating:

5:2 Method:

Eat normally five days a week, and restrict your calorie intake to 500–600 on the remaining two days. For instance, you might choose Monday and Thursday as your low-calorie days.

Longer Fasts:

While fasting for 24–72 hours is possible, it’s not always advisable. Extended fasting can stress your body, potentially leading to fat storage rather than fat loss.

Protein has earned a reputation as the building block of life, and for good reason. As one of the three essential macronutrients, alongside carbohydrates and fats, it plays a critical role in keeping your body functioning. From oxygen transport and immune defense to nerve signaling and tissue growth, protein is involved in nearly every system in your body.

But while it’s clear that protein is important, a question often comes up: Can you have too much of it? Let’s break down what the science says about protein requirements, and whether eating more than your daily share poses real risks.

How Much Protein Do You Really Need?

Your protein needs aren’t one-size-fits-all. They depend on several factors: your weight, age, physical activity, body composition goals, and overall health status.

The Recommended Dietary Allowance (RDA) for the average adult is 0.36 grams per pound (0.8 grams per kilogram) of body weight. This amount is generally enough to meet basic nutritional needs for most sedentary adults.

However, experts suggest that people who are physically active often need more, anywhere from 0.54 to 0.9 grams per pound (1.2–2 grams per kilogram) per day. Athletes may even require higher amounts to support muscle repair and performance.

Certain groups, such as pregnant or breastfeeding individuals, older adults, and people recovering from illness or injury, also have increased protein needs. For example, during pregnancy, the recommendation rises to about 0.5 grams per pound (1.1 grams per kilogram).

Are High-Protein Diets Harmful?

For years, concerns have circulated about the safety of high-protein diets, particularly regarding their potential impact on the kidneys, heart, and bones. But research suggests that many of these fears are unfounded — at least for healthy individuals.

Heart Health

Some worry that consuming too much protein, especially from animal sources, might raise the risk of heart disease. However, large-scale studies have not found a consistent link. One study involving over 12,000 adults found no association between animal or plant protein intake and heart disease risk. Similarly, reviews in 2020 and 2023 concluded that high protein intake was not connected to increased risks of stroke, cardiovascular death, or other heart-related conditions.

Bone Health

Earlier research hinted that high-protein diets might weaken bones by increasing calcium loss. Yet more recent evidence shows the opposite. A 2019 review of 13 studies found that higher protein intake — above the current RDA, was linked to stronger bones and a reduced risk of hip fractures. Since protein makes up over one-third of bone mass, adequate intake, alongside calcium and vitamin D, supports skeletal health.

If you’re thinking about ramping up your protein intake, the key is balance and individualization. While high-protein diets appear safe for most healthy people, your exact needs depend on your lifestyle, age, and health conditions.

Working with a registered dietitian or qualified healthcare provider can help you find the right amount for your body while ensuring your diet stays balanced with other nutrients. After all, protein is powerful, but it works best as part of a well-rounded eating plan.

If you think “healthy eating” is just about protein shakes, cutting carbs, and stocking your fridge with probiotic shots, celebrity nutritionist Rujuta Diwekar wants to have a word with you. Known for guiding Bollywood’s biggest names, including Kareena Kapoor, Rujuta is famous for her practical, grandma-approved advice. In her August 11 Instagram post, she listed five signs your diet is not only unsustainable but also joyless. And her antidote is simple: good old home-cooked food.

1. Protein Overload

2. No Spice, No Fun

3. Portion Panic

4. Festivals Feel Like Cheating

5. Gut Health Overload

Ironically, over-focusing on “gut health” can stress your digestive system further. Sometimes, what your stomach really needs is not a lab-formulated elixir but a home-cooked khichdi and curd.

Why Home-Cooked Food Wins Every Time

Why? Because home-cooked food naturally ticks all the boxes; it is balanced, economical, and emotionally grounding. It does not just help you lose weight; it helps you stop making weight loss the centre of your life.

A plate of fresh roti, ghee-topped dal, sabzi, and a little pickle is not just dinner; it is tradition, nutrition, and comfort, all in one. Plus, it is far cheaper than imported almond flour or cold-pressed mushroom juice.

Rujuta’s five red flags are a reminder that eating well should add to your life, not shrink it down to a list of forbidden foods.

Collagen has long been a nutritional superhero, cloaked in homemade bowls of chicken soup and Jell-O's wiggly texture. Now it's in the spotlight—mixed into morning coffee, blended into smoothies, or found in capsules because it's said to promote young-looking skin, supple joints, and even a healthier digestive tract. But if you take collagen daily for a month, what can you reasonably expect?

Collagen is the most widely found protein in the human body, and it forms the structural skeleton of your skin, cartilage, bones, and connective tissue. It consists largely of three amino acids—proline, glycine, and hydroxyproline—and functions like the skeletons that keep you assembled together.

Although your body naturally makes collagen, production decreases with age, beginning as early as your mid-20s. The consequences? Wrinkles, loss of skin elasticity, joint stiffness, and bone loss. Collagen supplements try to fill in the void, delivering your body with peptides that can potentially trigger it to make its own collagen.

The supplements themselves are generally derived from bovine (cow), porcine (pig), or marine (fish) sources. After processing, they become taste-free powder, capsule, or liquid that's convenient to incorporate into your diet.

Skin

One of the largest selling points of collagen supplementation is smoother, more youthful skin. The research supports the notion—albeit with qualifiers. A 2021 International Journal of Dermatology review discovered that consuming collagen for 90 days increased hydration and elasticity, with some subjects reporting fewer wrinkles than those who didn't supplement.

Collagen peptides also seem to set off the skin's fibroblasts (cells that make collagen) to increase production. After a while, that could mean plumper, tougher skin. Just remember that everyone is different, and the results come slowly you won't wake up with a "filtered" complexion after four weeks.

Also Read: How To Tell Your Skin Barrier Is Damaged? Step-By-Step Guide To Rebuilding Your Skin’s Defenses

Joints

Collagen is not all about looks—collagen is also very important for the health of joints. Type II collagen, specifically, is the main building block of cartilage, the padding tissue that lets joints glide smoothly.

There are some studies that recommend a daily consumption of collagen to decrease pain and function in individuals with joint problems. In Amino Acids, a review in 2021 indicated that 5 to 15 grams per day of collagen peptides improved participants' comfort and mobility. Collagen may also aid in quicker recovery when coupled with resistance exercise in people who are active or have been injured.

Bones

Bone density tends to decrease naturally with age, particularly in women after menopause. Collagen composes approximately one-third of bone weight, contributing to the bones' elasticity and strength. There has been some evidence—like a 2021 study published in the Journal of Bone Metabolism—that collagen supplements could increase bone mineral density and stability in postmenopausal women.

Although you will not experience this advantage in 30 days, sustained use might help make a difference in bone density, particularly when combined with calcium, vitamin D, and weight-bearing exercise.

Gut Health

Collagen has amino acids such as glycine and glutamine that can potentially keep the gut lining healthy. This is significant because an intact gut barrier is inflammation-reducing and helps with digestion. Although human studies are ongoing and preliminary, anecdotal evidence is that daily collagen consumption can alleviate bloating or discomfort in some individuals.

Hair and Wound Healing: Secondary Benefits

Your hair consists mainly of keratin, and that depends on the amino acids in collagen. Supplementation may be aided by some research, such as a 2022 review in the International Journal of Molecular Sciences, to support hair thickness and hair growth. Likewise, collagen's function in skin structure would make it accelerate wound healing—a benefit backed by evidence in burn victims.

Why Collagen Is Not A Magic Portion?

Even with the encouraging results, collagen is not a panacea. "Most physicians aren't aggressive about prescribing it, because the data just isn't there," says Dr. Peden, an orthopedic expert. The studies are encouraging but still in the making, and outcomes vary with diet, lifestyle, and genetics.

That is the reason why professionals suggest looking at collagen as part of a holistic health strategy that incorporates nutrient-dense foods, proper exercise, sun protection, and adequate sleep.

How to Choose and Use Collagen?

Since supplements aren’t regulated by the FDA, quality matters. Look for products that are independently verified, free of unnecessary fillers or sugars, and sourced from reputable companies. The most common types to look for are:

Type I and III – Best for skin, hair, and overall healthy aging.

Type II – Most linked with joint health.

Powders are the most convenient, but capsules are a good alternative if you don't want to mix powders in water. Although there is no traditional daily recommended dose, the majority of studies utilize 5 to 15 grams per day.

How To Consume Collagen Naturally?

Even when supplementing, lifestyle choices count:

• Consume protein foods such as chicken skin, bone broth, and whole fish to offer building blocks for collagen.
• Take adequate vitamin C from fruits and vegetables such as bell peppers, strawberries, and citrus to support collagen production.
• Exercise regularly—both resistance and aerobic training can encourage collagen synthesis.
• Shield your skin from UV, don't smoke, and restrict alcohol.

What Happens When You Take Collagen For 30 Days?

If you begin daily collagen, you can expect subtle improvements in your skin—slightly improved hydration or texture at the end of the first month. Joint pain may start to subside, particularly when combined with strength training or physical therapy.

More pronounced effects, particularly for skin elasticity, bone health, or hair growth, usually take 8 to 12 weeks or longer of regular use. Collagen is a long game, not a Band-Aid.

Collagen has its hype for a reason—it is involved in skin elasticity, joint ease, and overall structural well-being. Not everybody will notice earth-shattering shifts in 30 days, but regular usage, particularly in conjunction with healthy behaviors, can complement your body's natural repair and maintenance capabilities.

Disclaimer: This information is for educational purposes only and is not a professional medical consultation, diagnosis, or treatment. Always consult a qualified healthcare provider before taking any supplement.