Denise Austin, 66, fits into same swimsuit she wore in her 30s

Workout guru Denise Austin says she feels as fit now as she did in her 20s.

In a post shared over the weekend, the fitness icon wore the exact same pink swimsuit she modeled in the 1990s.

She was on the beach with her blonde hair down while looking phenomenal in both pictures – on the left she is in her 30s and on the right she is in her 60s.

The star — who was spotted making a margarita on Cinco de Mayo — said she’s just as confident about her looks now as she was 30 years ago, which is a powerful statement.

‘WOW!! what an incredible memory to look back on!’ she began her Instagram caption.

Then and now works for her: Workout guru Denise Austin says she feels as fit now as she did in her 20s. In a post shared over the weekend, the fitness icon wore the exact same pink swimsuit she modeled in the 1990s

“This Then and Now evokes so much nostalgia,” the California resident added.

‘I wore this suit in the 90s while filming my TV show!

“How many of you remember watching? I still feel as confident and fit as ever and love having this suit to remind me of how far I’ve come!’

Austin then added, “Longevity baby!! Thank you to everyone who has always supported me.. THEN and NOW!!!!xoxo.’

The exercise queen spoke to DailyMail.com about her figure last year.

The slim star has told DailyMail.com that one of the ways to maintain a flat stomach is to skip “sugar substitutes.”

She said women over 50 should try different foods. Foods high in fiber are a must, she noted.

Stay clean: The slim star has told DailyMail.com that one of the ways to maintain a flat stomach during the holidays is to skip 'sugar substitutes'

Keep it simple, folks: That means saying no to diet soda and processed sweets that claim to contain no sugar

Stay clean: Last year, the slim star told DailyMail.com that one of the ways to maintain a flat stomach during the holiday season is to skip “sugar substitutes.” That means saying no to diet soda and processed sweets that claim to contain no sugar

Simple plan:

Simple plan: “I have some tips that can help reduce that feeling and keep your bloated belly at bay. Some are as simple as eating more slowly and avoiding sugar substitutes,” she said

“Our 50s is when staying regular can become a challenge, so start incorporating other high-fiber foods in addition to high-fiber whole grains, such as beans and legumes, broccoli, berries, and avocados,” she said.

She also recommends anti-inflammatory foods. “Help minimize inflammation by adding turmeric, salmon, olive oil and even dark chocolate… these foods can also help promote heart health and a healthy weight when eaten in moderation!”

And her last tip is to consume plant-based proteins. “To keep your heart healthy, at this point in your life you may want to start replacing animal protein, such as red meat, with plant-based protein.” Consider a meat-free chili pepper, lentils in your salads, or fajitas with tofu instead of steak.’

As for food, she told DailyMail.com that she watches what she eats but keeps it delicious. And her portions are just right for shedding the pounds.

Take note!  She also recommends anti-inflammatory foods.

Take note! She also recommends anti-inflammatory foods. “Help minimize inflammation by adding turmeric, salmon, olive oil and even dark chocolate… these foods can also help promote heart health and a healthy weight when eaten in moderation”

Still a hottie: Austin shared a new image that highlights her toned stomach

Wow: The siren looked youthful in the tiny orange bikini top paired with tiny panties while wearing a white jacket while wearing her hair down

Still a hottie: Austin looked youthful in the tiny orange bikini top paired with tiny panties while wearing a white jacket while wearing her hair down

“I eat smaller portions,” Denise told DailyMail.com. “I might have salmon and vegetables for dinner. A snack is linseed with yogurt. I like avocados and eggs for breakfast.

‘I cook very healthy for my family. There’s lots of salads, chicken tacos, vegetable lasagnas, reduced-cheese casseroles.”

But she’s not always careful: “I eat well 80 percent of the time and I’m bad the other 20 percent.”

She’s referring to the popular 80/20 diet method that allows for cheat days. Some things she likes to cheat with: carbs and sugar.

And she also talked about sports.

The exercise proponent’s answer to fighting the bulge is to take baby steps.

Still a stunner: And her final tip is to consume plant-based proteins.

Still a stunner: And her final tip is to consume plant-based proteins. “To keep your heart healthy, at this point in your life you may want to start replacing animal protein, such as red meat, with plant-based protein.” Consider a meat-free chilli, lentils in your salads, or fajitas with tofu instead of steak’; seen in the 80’s

“I’ve been doing this for 40 years and I’m not a fitness freak,” she immediately clarifies during the interview. “But I’m consistent.”

That means exercising in some form every day.

“If you can work out for 10 minutes at a time and do that three times a day, you’ve worked out for 30 minutes in one day,” the star noted.

And she added that it’s important to keep moving throughout the day: “It’s about blood flow and movement. I even get up and walk in place when I’m watching TV, just to keep it flowing.”

Sounds like smart math, and an easy way to learn sports.

“The consistency pays off,” added the affable pin-up who is very active on Instagram.