Gwyneth Paltrow may be 49-years-old, but fans would never know that by looking. Paltrow's physique is ultra-fit, and she boasts her image on social media at every opportunity. The endless array of selfies and nude-photos on her Instagram reminds fans that she has unlocked the secret to natural beauty, even as she encroaches on her 50th birthday.

Shockingly, unlike other celebrities that seek a quick fix, Gwyneth's go-to regime doesn't involve going under the knife by seeking plastic surgery options. Seemingly able to defy the aging process, many have wondered what her secret is for being able to maintain such a youthful appearance. As it turns out, Marie Claire reports that her formula for staying fit is a simple, no-nonsense one, and we're about to dive in to the details!

10 She Maintains A 'Mostly Clean' Diet

Paltrow doesn't believe in excessively following any type of diet. Instead, she takes a lot of pride in maintaining what she terms as being a 'mostly clean' diet, that she tries to maintain on a daily basis. She isn't super strict about what she eats, but she makes sure to put the focus on ensuring there is significant intake of proteins and vegetables in her meals. She tries to avoid eating too much gran or sugar and insists on not eating anything that is baked. She admits this is tough at times and tries to encourage herself to continue eating healthy even when she's a bit lazy, by keeping cooked brown rice in her fridge at all times.

RELATED: The Reason Why Gwyneth Paltrow's Unrelatable Bread Comment Isn't Surprising

9 The Breakfast Balance

When timing is on her side, Paltrow enjoys making a healthy smoothie for breakfast. She posted her favorite recipe on her Goop website, and fans can see that it includes a blend of, "almond milk, coconut oil, vanilla mushroom protein powder and Moon Juice dust." However, she admits to sometimes opting to skip breakfast altogether. She leans towards pasta and chicken for lunch and relies on her stash of brown rice when things get too busy to cook elaborate meals.

8 Dedicated Splurge Moments

Part of staying fit means that Gwyneth Paltrow makes sure to find balance in her nutrition. She knows to primarily consume healthy, plant-based foods, but she is also aware of the fact that she doesn't want to deny herself tasty foods and end up ultimately resenting her healthy eating habits. As such, she maintains dedicated splurge moments in which she allows herself to consume whatever she pleases. She usually indulges for dinner, allowing herself to drink wine and eat tasty, and not-so healthy things she intentionally strays from during the day. She also abandons all restrictions on the holidays, allowing for unfiltered fun with food!

7 She Keeps An Open Mind About New Techniques

Gwyneth Paltrow refers to herself as the "Goop Guinea Pig." She says that when it comes to healthy eating options and new concepts that emerge on the market, she likes to try each one! She keeps an open mind and is known to 'try anything once,' so she's a self-proclaimed good resource when it comes to maintaining healthy nutritional habits and knowing what works.

RELATED: Kim Kardashian, Gwyneth Paltrow, And More React To That Bennifer Red Carpet Moment

6 Gwyneth Paltrow Does An Annual Cleanse

Paltrow has an annual go-to cleans that she participates in loyally, once a year. She has published this cleans on her Goop website and takes pride in her dedication to this ritual. This particular cleanse lasts for six days and allows her to still eat her three meals a day, along with a snack. However, every single one of those meals has to be free of caffeine, alcohol, dairy, gluten, and corn. It also has to be free from nightshades (potatoes, peppers, eggplants, tomatoes) and soy, as well as refined sugar, shellfish, white rice, and eggs.

5 She's A Fan Of The Goat's Milk Cleanse

Aside from the annual cleanse that she is so incredibly proud of, there is only one other cleanse that Gwyneth Paltrow seems to really enjoy, but this one isn't for the faint of heart. The Goat Milk's Cleanse involves eating nothing more than goat's milk and herbs for eight days, and this is said to rid the body of parasites. The theory behind this cleanse is that we all have parasites, and they love the milk protein, so they come out of the intestinal walls when the milk is consumed and then are killed by the herbs.

4 Getting Support From Supplements

Paltrow believes in getting nutritional support from supplements, and she admits to always experimenting with various vitamins throughout her adult life. She tells Women's Health; "I believe the combination of toxic load, the modern environment, and nutritional deficiency makes our bodies more vulnerable to breaking down. There are so many options for vitamins out there. We're low in so many nutrients. Even if we're careful about going organic and nontoxic, because we've degraded our soil, the nutritional value of the food we do eat, however healthy, is less than it was 100 years ago."

RELATED: Are Winona Ryder And Gwyneth Paltrow Friends Again?

3 She Makes Sure To Get Lots Of Sleep

Gwyneth believes that getting a lot good, 'clean' sleep is very important to staying fit and staying healthy. She says she gets anywhere from 7-10 hours of sleep each night and credits her good sleep habits to her ability to stay in such great shape. She believes that sleep plays a huge role in her appetite and energy levels.

2 She Makes Exercise A Daily Habit

Much like the rest of us, slotting in some time for exercise is sometimes a challenge for Paltrow. In order to curb laziness and to make sure she doesn't stay from her exercise regime too much; she says she makes working out a part of her daily ritual. She compares it with brushing her teeth and says that carving out time to work out each day ensures that she keeps this important healthy aspect a part of her daily habit.

1 Gwyneth Paltrow's Workout Coach Is Her Not-So-Secret Weapon

Fans that follow Paltrow's social media channels know that she has been vocal about her coach, Tracy Anderson. She follows Anderson's on-line classes and credits the fitness guru for arming her with a series of simple workout routines that are highly effective. She zones in on a specific body part each day, and indicates that Anderson's guidance has been a huge force behind her ability to stay so fit.

NEXT: Gwyneth Paltrow Ended Her Friendship With Madonna For This Reason